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Home> Hot Product Listed B   > benzoyl Peroxide

benzoyl Peroxide

CAS No.:94-36-0
EINECS(EC#):202-327-6
Molecular Weight:242.23
Molecular Formula:C14H10O4 (Products with the same molecular formula)
MOL File:94-36-0.mol
Names and Identifiers
Synonyms

Perkadox L Benzoyl peroxide pasteDibenzoyl peroxide BPObenzoyl Peroxide

Inchi
InChI=1/C14H10O4/c15-13(11-7-3-1-4-8-11)17-18-14(16)12-9-5-2-6-10-12/h1-10H
InChkey
OMPJBNCRMGITSC-UHFFFAOYSA-N
Properties
Appearance
white powder or clear solution
Density
1.16?g/mL?at 25?°C(lit.)
Melting Point
104-106℃
Boiling Point
explodes
Refractive Index
1.543 (20 C)
Flash Point
50 C
Water
Insoluble
Solubilities
slightly soluble AUTOIGNITION
Color/Form
CRYSTALS
WHITE, GRANULAR CRYSTALLINE SOLID
Colorless to white crystals or a granular powder.
Stability
Strong oxidizer. Highly flammable. Do not grind or subject to shock or friction. Incompatible with reducing agents, acids, bases, alcohols, metals, organic materials. Contact with combustible material, heating or friction may cause fire or explosion.
Storage temp
2-8°C
Spectral properties
INDEX OF REFRACTION: 1.543/D; SADTLER REF NUMBER: 332 (IR, PRISM); 127 (IR, GRATING)
IR: 6113 (Coblentz Society Spectral Collection)
UV: 127 (Sadtler Research Laboratories Spectral Collection)
NMR: 7604 (Sadtler Research Laboratories Spectral Collection)
Safety and Handling
Hazard Codes
E:Explosive
Risk Statements
R2;R36;R43
Safety Statements
S14;S3/7;S36/37/39
HazardClass
5.2
PackingGroup
II
Skin, Eye, and Respiratory Irritations
IN AN INVESTIGATION MADE IN A PLANT LOCATED IN NEW YORK STATE WHERE BENZOYL PEROXIDE FORMULATIONS WERE BEING PROCESSED ... CONCENTRATIONS OF 12.2 MG/CU M AND HIGHER RESULTED IN PRONOUNCED IRRITATION OF THE NOSE AND THROAT.
Local /dermal/ irritation is common, and contact allergy can occur.
Cleanup Methods
Cover the spill with a 1:1:1 mixture by weight of sodium carbonate or calcium carbonate, clay cat litter (bentonite) and sand. Dampen this mixture thoroughly with water, then scoop into a beaker using a plastic or cardboard shovel. Treat as per waste disposal procedure. Wash the area of the spill thoroughly with soap and water.
Transport
HAZARD
Fire Fighting Procedures
If material on fire or involved in fire: Burns with explosive violence. If it becomes ignited, material cannot be extinguished until it is consumed. /Benzoyl peroxide (benzoyl peroxide, dry or wet with less than 30% water)/
Evacuation: If the material is on fire or involved in fire consider evacuation of one-half mile radius. /Benzoyl peroxide (benzoyl peroxide crystals, granules or powders, wet with not less than 30% water); benzoyl peroxide (benzoyl peroxide, dry or wet with less than 30% water); benzoyl peroxide, (more than 77% but less than 95% with water); benzoyl peroxide, (not less than 30% but not more than 52% with inert solid); benzoyl peroxide, (not more than 72% as a paste); benzoyl peroxide, (not more than 77% with water; benzoyl peroxide, (technically pure or) benzoyl peroxide, more than 52% with inert solid)/
To fight fire: Water spray, foam.
If material on fire or involved in fire: use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use "alcohol" foam, dry chemical or carbon dioxide dangerously explosive. /Benzoyl peroxide (benzoyl peroxide crystals, granules or powders, wet with not less than 30% water); benzoyl peroxide (benzoyl peroxide, dry or wet with less than 30% water); benzoyl peroxide, (more than 77% but less than 95% with water); benzoyl peroxide, (not less than 30% but not more than 52% with inert solid); benzoyl peroxide, (not more than 72% as a paste); benzoyl peroxide, (not more than 77% with water; benzoyl peroxide, (technically pure or) benzoyl peroxide, more than 52% with inert solid)/
Fire Potential
Unstable to heat; decomposes with evolving oxygen, resulting in advancing fire. Sensitive to impact and friction.
Moderate fire hazard by spontaneous chemical reaction in contact with reducing agents. It ignites readily and burns rapidly.
Formulations/Preparations
GRADES OR PURITY: 98% (DRY); 70-78% (WET); VARIOUS PASTES OF DIBENZOYL PEROXIDE AND LIQUID PLASTICIZERS SUCH AS TRICRESYL PHOSPHATE, SILICONE OIL.
Benzoyl peroxide is available in the USA as granules containing 98.5 + or - 1% benzoyl peroxide, as granules containing 75-80% and 70 + or - 2% benzoyl peroxide with water as a diluent, as pastes containing from 24-27% up to 55% min benzoyl peroxide with proprietary diluents, as a paste containing 50-52% benzoyl peroxide with tricresyl phosphate as a diluent, as a paste containing 50% min benzoyl peroxide with silicone oil as a diluent, as a powder containing 35-37% benzoyl peroxide with dicalcium phosphate as a diluent, and as a powder containing 32-33% benzoyl peroxide with wheat starch as a diluent.
Flour bleach typically contains 32% benzoyl peroxide and 68% corn-starch.
Benzoyl peroxide ... used in topical non-prescription medications for the treatment of acne ... /is/ sold as lotions, gels, creams and ointments containing 2.5-10% benzoyl peroxide.
Stri-dex B.P. 10%: Benzoyl Peroxide, 10%
Epi Clear Antiseptic Lotion: Benzoyl Peroxide, 5% and 10%
Benoxyl (5&10) Lotion: Benzoyl Peroxide, 5% and 10%
Clearasil Antibacterial Acne Lotion: Benzoyl Peroxide, 5%
Clearasil BP Acne Treatment Cream: Benzoyl Peroxide, 10%
Oxy-5: Benzoyl Peroxide, 5%
Oxy-10: Benzoyl Peroxide, 10%
Oxy-10 Cover: Benzoyl Peroxide, 10%
Grade: Technical, Wet or dry; Food Chemicals Codex
TOPICAL, AS A 5-10% CREAM, GEL, OR LOTION, ... DOSAGE FORMS--CREAM: 5 & 10%; LOTION: 5 & 10%.
Granules, powder, or paste with 35 to 100 percent peroxide content
DOT Emergency Guidelines
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Fire or Explosion: May explode from heat or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Health: Fire may produce irritating, corrosive and/or toxic gases. Ingestion or contact (skin, eyes) with substance may cause severe injury or burns. Runoff from fire control or dilution water may cause pollution. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Evacuation: Large spill: Consider initial evacuation for at least 250 meters (800 feet). Fire: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Fire: Small fires: Water spray or fog is preferred; if water not available use dry chemical, CO2, or regular foam. Large fires: Flood fire area with water from a distance. Use water spray or fog; do not use straight streams. Move containers from fire area if you can do it without risk. Do not move cargo or vehicle if cargo has been exposed to heat. Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Keep substance wet using water spray. Stop leak if you can do it without risk. Small spills: Take up with inert, damp, non-combustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal. Large spills: Wet down with water and dike for later disposal. Prevent entry into waterways, sewers, basements or confined areas. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 145: ORGANIC PEROXIDES (HEAT AND CONTAMINATION SENSITIVE)/ First Aid: Move victim to fresh air. CALL 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. Contaminated clothing may be a fire risk when dry. Remove material from skin immediately. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Keep victim warm and quiet. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. /Organic peroxide type D, solid; Organic peroxide type E, liquid; Organic peroxide type E, solid; Organic peroxide type F, liquid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Fire or Explosion: May explode from heat, shock, friction or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Health: Fire may produce irritating, corrosive and/or toxic gases. Ingestion or contact (skin, eyes) with substance may cause severe injury or burns. Runoff from fire control or dilution water may cause pollution. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Evacuation: Large spill: Consider initial evacuation for at least 250 meters (800 feet). Fire: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Fire: Small fires: Water spray or fog is preferred; if water is not available use dry chemical, CO2, or regular foam. Large fires: Flood fire area with water from a distance. Use water spray or fog; do not use straight streams. Move containers from fire area if you can do it without risk. Do not move cargo or vehicle if cargo has been exposed to heat. Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Keep substance wet using water spray. Stop leak if you can do it without risk. Small spills: Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal. Large spills: Wet down with water and dike for later disposal. Prevent entry into waterways, sewers, basements or confined areas. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. /Organic peroxide type B, solid; Organic peroxide type C, solid/
/GUIDE 146: ORGANIC PEROXIDES (HEAT, CONTAMINATION AND FRICTION SENSITIVE)/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. Contaminated clothing may be a fire risk when dry. Remove material from skin immediately. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Keep victim warm and quiet. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. /Organic peroxide type B, solid; Organic peroxide type C, solid/
Exposure Standards and Regulations
Benzoyl peroxide is an indirect food additive for use only as a component of adhesives.
Reactivities and Incompatibilities
Special care must be taken to avoid contamination with combustible materials (wood, paper), various inorganic & organic acids, alkalies, alcohols, amines, easily oxidizable materials such as ethers, or materials used as accelerators in polymerization reactions.
Benzoyl peroxide was weighted into a stainless steel beaker that had been rinsed previously with methyl methacrylate. The peroxide catalyzed polymerization of the methacrylate & the build-up of heat was sufficient to ignite the remainder of the peroxide.
Explosive decomposition occurred when finely ground benzoyl peroxide was allowed to react with N,N-dimethylaniline by breaking an ampuole containing 0.5 g of dimethylaniline in an autoclave.
An attempted reduction of benzoyl peroxide with lithium aluminum hydride resulted in an explosion.
Addition of 1 drop of aniline to 1 g of /benzoyl/ peroxide results in a mild explosion. Explosion can result from heating a mixture /of carbon tetrachloride and ethylene/ with a small amount of benzoyl peroxide.
Combustible substances (wood, paper, etc.), acids, alkalis, alcohols, amines, ethers [Note: Containers may explode when heated. Extremely explosion-sensitive to shock, heat, and friction].
Explosive or violent reaction on contact with N,N-dimethylaniline, aniline, dimethyl sulfide, lithium tetrahydroaluminate, and N-bromosuccinimide plus 4-toluic acid. Mixture with carbon tetrachloride plus ethylene explodes at elevated temp and pressures. Reacts violently in contact with various organic or inorganic acids, alcohols, amines, metallic naphthenates, as well as with polymerization accelerators, e.g., dimethylaniline, and CCl4 plus C2H4. Violent reaction with charcoal when heated above 50 deg C. ... Vigorous reaction leading to ignition with methylmethacrylate, and vinyl acetate plus ethyl acetate.
Upon contact with reducing materials, such as organic matter or thiocyanates, an explosion can occur. /Organic peroxides/
Other Preventative Measures
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
BECAUSE IT IS HIGHLY FLAMMABLE AND EXPLOSIVE, IT IS HANDLED, DILUTED IN SOME UNREACTIVE ORGANIC SOLVENT, SUCH AS PHTHALATE ESTER.
Non-impervious clothing which becomes contaminated with benzoyl peroxide should be removed promptly and not reworn until the benzoyl peroxide is removed from the clothing.
If employees' clothing may have become contaminated with solid benzoyl peroxide, employees should change into uncontaminated clothing before leaving the work premises.
Clothing contaminated with benzoyl peroxide should be placed in closed containers for storage until it can be discarded or until provision is made for the removal of benzoyl peroxide from the clothing. If the clothing is to be laundered or otherwise cleaned to remove the benzoyl peroxide, the person performing the operation should be informed of benzoyl peroxide's hazardous properties.
Employees who handled benzoyl peroxide or liquids containing benzoyl peroxide should wash their hands thoroughly with soap or mild detergent and water before eating, smoking, or using toilet facilities.
Eating and smoking should not be permited in areas where solid benzoyl peroxide is handled, processed, or stored.
If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep spilled material wet. Wet spilled material before picking it up. /Benzoyl peroxide (benzoyl peroxide crystals, granules or powders, wet with not less than 30% water); benzoyl peroxide (benzoyl peroxide, dry or wet with less than 30% water); benzoyl peroxide, (more than 77% but less than 95% with water); benzoyl peroxide, (not less than 30% but not more than 52% with inert solid); benzoyl peroxide, (not more than 72% as a paste); benzoyl peroxide, (not more than 77% with water; benzoyl peroxide, (technically pure or) benzoyl peroxide, more than 52% with inert solid)/
Avoid breathing dusts, and fumes from burning material. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. ... If contact with the material anticipated, wear appropriate chemical protective clothing. Approach fire with caution. /Benzoyl peroxide (benzoyl peroxide crystals, granules or powders, wet with not less than 30% water); benzoyl peroxide (benzoyl peroxide, dry or wet with less than 30% water); benzoyl peroxide, (more than 77% but less than 95% with water); benzoyl peroxide, (not less than 30% but not more than 52% with inert solid); benzoyl peroxide, (not more than 72% as a paste); benzoyl peroxide, (not more than 77% with water; benzoyl peroxide, (technically pure or) benzoyl peroxide, more than 52% with inert solid)/
The worker should immediately wash the skin when it becomes contaminated.
Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises.
Protective Equipment and Clothing
PROTECTIVE EQUIPMENT FOR PERSONNEL COMPRISES SAFETY GOGGLES, APRONS OF NON-INFLAMMABLE MATERIAL OR RUBBER, ... RUBBER BOOTS SHOULD BE WORN OVER LEATHER FOOTWEAR.
Employees should be provided with and required to use impervious clothing, gloves, face shields (eight-inch minimum), and other appropriate protective clothing necessary to prevent repeated or prolonged skin contact with benzoyl peroxide or liquids containing benzoyl peroxide.
Employees using or handling pure benzoyl peroxide should be provided with and required to wear fire-resistant clothing treated with an antistatic agent.
Employees should be provided with and required to use dust- and splash-proof safety goggles where benzoyl peroxide or liquids containing benzoyl peroxide may contact the eyes.
Wear goggles, breathing apparatus, protective clothing, and body shield.
Recommendations for respirator selection. Max concn for use: 50 mg/cu m. Respirator Class(es): Any dust and mist respirator except single-use and quarter-mask respirators. May require eye protection. Any supplied-air respirator. May require eye protection.
Recommendations for respirator selection. Max concn for use: 125 mg/cu m. Respirator Class(es): Any supplied-air respirator operated in a continuous flow mode. May require eye protection. Any powered, air-purifying respirator with a dust and mist filter. May require eye protection.
Recommendations for respirator selection. Max concn for use: 250 mg/cu m. Respirator Class(es): Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter. Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter. May require eye protection. Any self-contained breathing apparatus with a full facepiece. Any supplied-air respirator with a full facepiece.
Recommendations for respirator selection. Max concn for use: 1500 mg/cu m. Respirator Class(es): Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode.
Recommendations for respirator selection. Condition: Emergency or planned entry into unknown concn or IDLH conditions: Respirator Class(es): Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode. Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode.
Recommendations for respirator selection. Condition: Escape from suddenly occurring respiratory hazards: Respirator Class(es): Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter. Any appropriate escape-type, self-contained breathing apparatus.
Wear appropriate eye protection to prevent eye contact.
Wear appropriate personal protective clothing to prevent skin contact.
Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection.
Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. (Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.)
Octanol/Water Partition Coefficient
log Kow = 3.46
Disposal Methods
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Rigid containers of uncertain age or condition should not be opened but carefully burned from a safe distance. /Peroxides, organic/
Incineration or burning is generally preferred /method of destroying peroxides/. Burning may be done by spreading waste in a trench and igniting it from a distance. Most organic peroxides can also be hydrolyzed by adding them slowly with stirring to about ten times their weight of cold 10% sodium hydroxide soln. The reaction may require several hours. /Peroxides, organic/
Submerge in alkali solution. 10% NaOH at 4 times weight of peroxide. Empty containers should never be employed for other purposes but should be burned. Waste pastes can also be charged with 50% nonflammable material (e.g. Vermiculite), dried, and burned under controlled conditions.
Reach Info
This substance has been officially registered by enterprises.
ECHA (EU chemicals Management Agency) published the completed registration file as follows:
Completed registration file:
Registered as ubmitted Total tonnage band  
FULL JOINT 1000_10000 view >
Registered companies:
Registrant / Supplier details Latest dossier received
Akzo Nobel Functional Chemicals BV 2012
ARKEMA Gmbh 2016
CS Regulatory Ltd 1L-7 2017
more >
MSDS

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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name Benzoyl peroxide

1.2 Other means of identification

Product number -
Other names benzoyl benzenecarboperoxoate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food Additives: BLEACHING_AGENT; FLOUR_TREATMENT_AGENT
Uses advised against no data available

1.4 Supplier's details

Company XiXisys.com
Address XiXisys.com
Telephone XiXisys.com
Fax XiXisys.com

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Organic peroxides, Type B

Eye irritation, Category 2

Skin sensitization, Category 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H241 Heating may cause a fire or explosion

H319 Causes serious eye irritation

H317 May cause an allergic skin reaction

Precautionary statement(s)
Prevention

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P234 Keep only in original packaging.

P235 Keep cool.

P240 Ground and bond container and receiving equipment.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P264 Wash ... thoroughly after handling.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P272 Contaminated work clothing should not be allowed out of the workplace.

Response

P370+P380+P375 In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P337+P313 If eye irritation persists: Get medical advice/attention.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P333+P313 If skin irritation or rash occurs: Get medical advice/attention.

P321 Specific treatment (see ... on this label).

P362+P364 Take off contaminated clothing and wash it before reuse.

Storage

P403 Store in a well-ventilated place.

P410 Protect from sunlight.

P411 Store at temperatures not exceeding \u2026\u00b0C/\u2026\u00b0F.

P420 Store separately.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
Benzoyl peroxide Benzoyl peroxide 94-36-0 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest.

In case of skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap.

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

CONTACT WITH EYES OR SKIN: irritates eyes. Prolonged contact may irritate skin. (USCG, 1999)

Excerpt from ERG Guide 145 [Organic Peroxides (Heat and Contamination Sensitive)]: Fire may produce irritating, corrosive and/or toxic gases. Ingestion or contact (skin, eyes) with substance may cause severe injury or burns. Runoff from fire control or dilution water may cause pollution. (ERG, 2016)

Excerpt from ERG Guide 146 [Organic Peroxides (Heat, Contamination and Friction Sensitive)]: Fire may produce irritating, corrosive and/or toxic gases. Ingestion or contact (skin, eyes) with substance may cause severe injury or burns. Runoff from fire control or dilution water may cause pollution. (ERG, 2016)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

For immediate first aid: Ensure that adequate decontamination has been carried out. If victim is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep victim quiet and maintain normal body temperature. Obtain medical attention. /Organic peroxides/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

If material on fire or involved in fire: Burns with explosive violence. If it becomes ignited, material cannot be extinguished until it is consumed. /Benzoyl peroxide (benzoyl peroxide, dry or wet with less than 30% water)/

5.2 Specific hazards arising from the chemical

Special Hazards of Combustion Products: Suffocating smoke evolved Behavior in Fire: May explode (USCG, 1999)

Excerpt from ERG Guide 145 [Organic Peroxides (Heat and Contamination Sensitive)]: May explode from heat or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard. (ERG, 2016)

Excerpt from ERG Guide 146 [Organic Peroxides (Heat, Contamination and Friction Sensitive)]: May explode from heat, shock, friction or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard. (ERG, 2016)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Evacuate danger area! Remove all ignition sources. Wash away remainder with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents.

6.3 Methods and materials for containment and cleaning up

Cover the spill with a 1:1:1 mixture by weight of sodium carbonate or calcium carbonate, clay cat litter (bentonite) and sand. Dampen this mixture thoroughly with water, then scoop into a beaker using a plastic or cardboard shovel. Treat as per waste disposal procedure. Wash the area of the spill thoroughly with soap and water.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Fireproof. Separated from combustible substances and reducing agents. Store only in original packaging. See Chemical Dangers.All precautions must be taken to guard against fire and explosion hazards. Keep in a cool place out of direct rays of the sun; away from sparks, open flames and other sources of heat; away from shock, rough handling, friction from grinding, etc. Isolated storage is required; keep away from possible contact with acids, alcohols, ethers or other reducing agents or polymerization catalysts such as dimethylaniline. Complete instructions on storage and handling available from manufacturer.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m.

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state white powder or clear solution
Colour CRYSTALS
Odour Faint, benzaldehyde-like odor.
Melting point/ freezing point 104-106\u00baC
Boiling point or initial boiling point and boiling range 80\u00b0C
Flammability Combustible Solid (easily ignited and burns very rapidly).Many reactions may cause fire or explosion.
Lower and upper explosion limit / flammability limit no data available
Flash point 95\u00b0C
Auto-ignition temperature 80\u00b0C
Decomposition temperature 103-105\u00b0C
pH no data available
Kinematic viscosity no data available
Solubility In water:Insoluble
Partition coefficient n-octanol/water (log value) log Kow = 3.46
Vapour pressure less than 0.1 mm Hg at 20\u00b0C
Density and/or relative density 1.16g/mLat 25\u00b0C(lit.)
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

VERY STABLE /SRP: SHELF LIFE/ @ ORDINARY TEMP (25 DEG C)

10.3 Possibility of hazardous reactions

Unstable to heat; decomposes with evolving oxygen, resulting in advancing fire. Sensitive to impact and friction.BENZOYL PEROXIDE is a white, odorless powder, moderately toxic. It is most dangerous when it contains less then 1% water. A moisture content of 3% allowed slow burning only, and at 5% ignition did not occur [McCloskey, C. M. et al., Chem. Abs., 1967, 66, 12613c]. Mixed with a large surplus of water (30% or more), it is relatively safe. In dry form, it is a very dangerous material. It will explode spontaneously when heated above melting point (103\u00b0 C). An explosion which occurred when a screw-capped bottle of the peroxide was opened has been attributed to friction, which initiated a mixture of peroxide and organic dust in the cap threads [Lappin, G. R., Chem. Eng. News, 1948, 26, p.3518]. A violent explosion occurred during purification of the peroxide by Soxhlet extraction with hot chloroform [Anon., Sichere Chemiearb., 1976, 28, p. 49]. It is a powerful oxidizer, which ignites readily and burns rapidly. In contact with reducing agents, it may ignite by spontaneous chemical reaction. It must be kept in a cool place, in isolation and out of the sunlight or sources of heat. Also, avoid shock or friction. It reacts violently with inorganic or organic acids, alcohols, amines, metallic naphthenates and polymerization accelerators (e.g., N,N-dimethylaniline). Explosive or violent reaction upon contact with dimethyl sulfide, lithium aluminum hydride or aniline [Bretherick, 5th ed., 1995, p. 1140]. Mixture with carbon tetrachloride and ethylene explodes when exposed to heat [Bolt, R. O. et al., Chem. Eng. News, 1947, 25, p. 1866]. Ignition occurred upon contact with methyl methacrylate [MCA Case History No. 996], polymerization of vinyl acetate in ethyl acetate accelerated out of control leading to ignition and explosion [Vervalin, 1973, p. 81]. At 50\u00b0 C a mixture of dibenzoyl peroxide and charcoal reacts violently producing dense white smoke of benzoic acid, benzene, phenyls and carbon dioxide [Leleu, Cahiers, 1980, 99, p. 279].

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Special care must be taken to avoid contamination with combustible materials (wood, paper), various inorganic & organic acids, alkalies, alcohols, amines, easily oxidizable materials such as ethers, or materials used as accelerators in polymerization reactions.

10.6 Hazardous decomposition products

Explosive decomposition above the melting point ... forms flammable products.

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat oral 7710 mg/kg
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

Evaluation: There is inadequate evidence in humans for the carcinogenicity of benzoyl peroxide. There is limited evidence in experimental animals for the carcinogenicity of benzoyl peroxide. Overall evaluation: Benzoyl peroxide is not classifiable as to its carcinogenicity to humans (Group 3).

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

In the Japanese MITI test, benzoyl peroxide (present at 100 ppm) reached 84 percent of its theoretical BOD in 21 days, using an activated sludge inoculum(1).

12.3 Bioaccumulative potential

An estimated BCF of 250 was calculated for benzoyl peroxide(SRC), using an experimental log Kow of 3.46(1,SRC) and a recommended regression-derived equation(2). According to a classification scheme(3), this BCF suggests that bioconcentration in aquatic organisms is high(SRC).

12.4 Mobility in soil

The Koc of benzoyl peroxide is estimated as approximately 1,800(SRC), using a measured log Kow of 3.46(1) and a regression-derived equation(2,SRC). According to a recommended classification scheme(3), this estimated Koc value suggests that benzoyl peroxide is expected to have low mobility in soil(SRC).

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN3108 IMDG: UN3108 IATA: UN3108

14.2 UN Proper Shipping Name

ADR/RID: ORGANIC PEROXIDE TYPE E, SOLID
IMDG: ORGANIC PEROXIDE TYPE E, SOLID
IATA: ORGANIC PEROXIDE TYPE E, SOLID

14.3 Transport hazard class(es)

ADR/RID: 5.2 IMDG: 5.2 IATA: 5.2

14.4 Packing group, if applicable

ADR/RID: II IMDG: II IATA: II

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
Benzoyl peroxide Benzoyl peroxide 94-36-0 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 17, 2017
Revision Date Aug 17, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

Precursor and Product
Computational chemical data

Molecular Weight:242.2268 [g/mol]
Molecular Formula:C14H10O4
XLogP3-AA:3.5
H-Bond Donor:0
H-Bond Acceptor:4
Rotatable Bond Count:5
Exact Mass:242.057909
MonoIsotopic Mass:242.057909
Topological Polar Surface Area:52.6
Heavy Atom Count:18
Formal Charge:0
Complexity:258
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:1
Feature 3D Acceptor Count:2
Feature 3D Ring Count:2
Effective Rotor Count:5
Conformer Sampling RMSD:0.6
CID Conformer Count:83

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