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Home> Hot Product Listed P   > P-Chlorophenol


Iupac Name:4-chlorophenol
CAS No.:106-48-9
Molecular Weight:128.56
Molecular Formula:C6H5ClO (Products with the same molecular formula)
MOL File:106-48-9.mol
off-white to light tan crystals or powder
Melting Point
Boiling Point
0.245mmHg at 25°C
Refractive Index
Flash Point
2.7 g/100 mL (20℃)
Needle like, white to straw-colored crystals
White crystals (yellow or pink when impure)
Yellow solid
Stable. Incompatible with acid chlorides, acid anhydrides, oxidizing agents, iron.
HS Code
Storage temp
Spectral properties
Index of refraction: 1.5419 at 55 deg C/D; 1.5579 at 40 deg C/D
MAX ABSORPTION (CYCLOHEXANE): 224 NM (LOG E= 3.94); 279 NM (LOG E= 3.27); 287 NM (LOG E= 3.23); SADTLER REF NUMBER: 1418 (IR, PRISM); 243 (IR, GRATING)
IR: 4814 (Coblentz Society Spectral Collection)
UV: 409 (Sadtler Research Laboratories Spectral Collection)
NMR: 17044 (Sadtler Research Laboratories Spectral Collection)
MASS: 69778 (NIST/EPA/MSDC Mass Spectral Database, 1990 version)
Intense mass spectral peaks: 128 m/z (100%), 130 m/z (33%), 65 m/z (42%), 64 m/z (20%)
Safety and Handling
Hazard Codes
Risk Statements
Safety Statements

Poison by inhalation and intraperitoneal routes. Moderately toxic by ingestion, skin contact, and subcutaneous routes. A severe skin and eye irritant. Human systemic effects by inhalation: excitement, irritability. Mutation data reported. Combustible when exposed to heat or flame. To fight fire, use water, spray, mist, fog, foam, dry chemical. When heated to decomposition it emits toxic fumes of Cl?.
Hazard Codes:?HarmfulXn,DangerousN
Risk Statements: 20/21/22-51/53-50?
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.?
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.?
R50:Very toxic to aquatic organisms.
Safety Statements: 28-61-28A-24/25-60?
S28:After contact with skin, wash immediately with plenty of soap-suds.?
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.?
S24/25:Avoid contact with skin and eyes.?
S60:This material and its container must be disposed of as hazardous waste.
RIDADR: UN 2020 6.1/PG 3
WGK Germany: 2
RTECS: SK2800000
HazardClass: 6.1
PackingGroup of 4-Chlorophenol (CAS NO.106-48-9): III

Air Sensitive
Skin, Eye, and Respiratory Irritations
Strong irritant to tissue
The substance irritates the eyes, the skin and the respiratory tract.
Causes severe eye and skin burns.
Cleanup Methods
Phenolic cmpd in wastewater are oxidized with hydrogen peroxide catalyzed by iron(3+)-iron(2+). When the wt ratio of phenol:hydrogen peroxide is 1:3 and iron 5-100 ppm, more than 95% of the phenols are removed in 30 min from a 500 ppm phenol soln at pH 5-6 and 25-50 deg C. /Phenolic cmpd/
Evacuate and restrict persons not wearing protective equipment from area of spill or leak until cleanup is complete. Remove all ignition sources. Ventilate area of spill or leak. Absorb liquids in vermiculite, dry sand, earth, peat, carbon, or a similar material and deposit in sealed containers. Collect powdered material in the most convenient and safe manner and deposit in sealed containers. It may be necessary to contain and dispose of this chemical as a hazardous waste. /Monochlorophenols/
Shovel into suitable dry container.
UN 2904/2905/2020
Fire Fighting Procedures
Use dry chemical, carbon dioxide, or foam extinguishers. Vapors are heavier than air and well collect in low areas. ... Vapors in confined areas may explode when exposed to fire. Containers may explode in fire. Storage containers and parts of containers may rocket great distances, in many directions. ...From a secure, explosion-proof location, use water spray to cool exposed containers. If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors, or shows any signs of deforming), withdraw immediately to a secure position. /Monochlorophenols/
Use dry chemical foam, carbon dioxide, or water spray. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products. Use water spray to keep fire-exposed containers cool.
Fire Potential
Grade: NF, technical
DOT Emergency Guidelines
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ Health: TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ Fire or Explosion: Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. Those substances designated with a "P" may polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ 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. Ventilate enclosed areas. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ 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 provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ Evacuation: ... 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. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ Fire: Small fires: Dry chemical, CO2 or water spray. Large fires: Dry chemical, CO2, alcohol-resistant foam or water spray. Move containers from fire area if you can do it without risk. Dike fire control water for later disposal; do not scatter the material. Fire involving tanks or car/trailer loads: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. /Chlorophenols, liquid; Chlorophenols, solid/
/GUIDE 153: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE)/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. /Chlorophenols, liquid; Chlorophenols, solid/
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.
Wash contaminated areas of skin with concentrated soap solution without delay. Contaminated gloves, clothing, shoes should be immediately removed and disposed of in an incinerator.
SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers.
SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.
Protective Equipment and Clothing
/Wear/ face shield; Boots and apron; Respiratory protection
Wear protective gloves and clothing to prevent any reasonable probability of skin contact. Safety equipment suppliers/manufacturers can provide recommendations on the most protective glove/clothing material for your operation. All protective clothing (suits, gloves, footwear, headgear) should be clean, available each day, and put on before work. Contact lenses should not be worn when working with this chemical. Wear splash-proof chemical goggles and face shield when working with liquid, unless full facepiece respiratory protection is worn. Wear dust-proof goggles when working with powders or dust, unless full facepiece respiratory protection is worn. Employees should wash immediately with soap when skin is wet or contaminated. Provide emergency showers and eyewash. /Monochlorophenols/
Wear special protective clothing and positive pressure self-contained breathing apparatus.
ENGINEERING CONTROLS Use only in a chemical fume hood. Safety shower and eye bath.

? 4-Chlorophenol (CAS NO.106-48-9), its Synonyms are Parachlorophenol ; Phenol, 4-chloro- ; p-Chlorophenol ; 4-Chloro-1-hydroxybenzene ; 4-Hydroxychlorobenzene ; 4-Monochlorophenol ; Phenol, p-chloro- ; p-Chlorophenic acid . It is off-white to light tan crystals or powder.

Octanol/Water Partition Coefficient
log Kow = 2.39

Reported in EPA TSCA Inventory. Chlorophenol compounds are on the Community Right-To-Know List.

Disposal Methods
SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.
Chemical Treatability of p-Chlorophenol; Concentration Process: Biological Treatment; Chemical Classification: Phenols; Scale of Study: Unknown; Type of Wastewater Used: Pure Compound (one solute in a solvent); Results of Study: 96% reduction based on chemical oxygen demand, rate of biodegradation 11 mg/g hr; (Activated Sludge Process).
Chemical Treatability of p-Chlorophenol; Concentration Process: Biological Treatment; Chemical Classification: Phenols; Scale of Study: Laboratory Scale; Type of Wastewater Used: Pure Compound (one solute in a solvent); Results of Study: 100% reduction in 33 hours; (Biodegradation by mutant pseudomonas species).
This work presents the results of the application of an optimally controlled influent flow rate strategy to biodegrade, in a discontinuous reactor, high concentrations of 4-chlorophenol used as toxic compound model. The influent is fed into the reactor in such a way as to obtain the maximal degradation rate, thus avoiding the inhibition of the microorganisms. The optimal strategy was able to manage increments of toxic concentrations in the influent up to 7,000 mg 4CP/L without any problem. It was shown not only that higher concentrations of toxic could be treated, but also that a reduction in degradation time (around 52%) and in the supplied air volume was obtained. [Moreno-Andrade I et al; Water Sci Technol 53 (11): 261-8 (2006)] PubMed Abstract
The aim ... is to study a coupled system to treat biorecalcitrant wastewaters. The combination consists of an advanced oxidation process (AOP) named photo-Fenton (Ph-F), which is a photochemical treatment and a sequencing batch biofilter reactor (SBBR). The synthetic wastewater used to optimize this process is a solution of 200 ppm of 4-chlorophenol (4-CP)... The results showed that it is necessary to severely treat the toxic solution (with 500 ppm of [H2O2]0) in order to achieve more than 90% of TOC removal in the whole process. The photochemical and biological treatments lasted 50 minutes and 24 hours, respectively. [Bacardit J et al; Water Sci Technol 55 (12): 95-100 (2007)] PubMed Abstract
Treatment of simulated wastewater containing 40 mg/L of 4-chlorophenol (4-CP) was carried out in an upflow anaerobic sludge blanket (UASB) reactor under methanogenic condition. The performance of this test UASB reactor was evaluated in terms of 4-CP removal. Hydraulic retention time (HRT) and substrate:co-substrate ratio for the 4-CP removal was optimized by varying the influent flow rate (13-34.7 ml/min) and sodium acetate concentration (2-5 g/L), respectively ... [Majumder PS, Gupta SK; Bioresour Technol 99 (10): 4169-77 (2008)] PubMed Abstract
A) Dissolve in such combustible solvent as alcohols, benzene etc. Spray the solvent into the furnace with afterburner and scrubber. B) Pour into sodium bicarbonate or a mixture of sand-soda ash (9:1). After mixing, transfer into a paper carton filled with packing paper. Burn more efficiently in the furnace with an afterburner and scrubber. Recommendable method: Incineration. Not recommendable method: Discharge to sewer.
The biosurfactant's effect on the biodegradation of 4-chlorophenol (4-CP) in the existence of glucose was researched under the circumstances of using unacclimated culture and various sludge ages. The removal efficiencies of chemical oxygen demand (COD) and 4-CP, the growth of biomass and specific substrate removal rates were examined under various operating conditions.... [Uysal A, Turkman A; J Hazard Mater 148 (1-2): 151-7 (2007)] PubMed Abstract
TiO(2) photocatalyst (P-25) (50 mg/L) was tentatively introduced into pulsed high-voltage discharge process for non-thermal plasma-induced photocatalytic degradation of the representative mode organic pollutant parachlorophenol (4-CP), including other compounds phenol and methyl red in water.... The introduction of TiO(2) photocatalyst into pulsed discharge plasma process in the utilizing of ultraviolet radiation and electric field in pulsed discharge plasma process enhanced the yields of chemically active species, which were available for highly efficient removal and mineralization of organic pollutants. [Hao XL et al; J Hazard Mater 141 (3): 475-82 (2007)] PubMed Abstract
2-Chlorophenol (2-CP), 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) at initial concentrations of 10, 20, 50 and 100 mg/L were degraded in aqueous media by direct UV photolysis using dielectric barrier discharge XeBr(*) excilamp (283nm) in a flow-through photoreactor. The pseudo-first order rate constants were highest and half-life times were lowest for 4-CP. The rates of photolysis under the experimental conditions increased in the order: 2-CPPubMed Abstract
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  
Registered companies:
Registrant / Supplier details Latest dossier received
[Confidential] 2007
Lanxess Deutschland GmbH 2012
NetSun EU B.V. 2013
more >

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

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017


1.1 GHS Product identifier

Product name 4-chlorophenol

1.2 Other means of identification

Product number -
Other names p-Chlorophenol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

Company WWW.GuideChem.COM
Address 8F, Block C, No.3 Building, Zijin Plaza, No.701, Gudun Road, Hangzhou, Zhejiang 310030, China
Telephone +86-571-89739798
Fax 86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-571-89739798
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

Acute toxicity - Oral, Category 4

Acute toxicity - Dermal, Category 4

Acute toxicity - Inhalation, Category 4

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

2.2 GHS label elements, including precautionary statements

Signal word


Hazard statement(s)

H302 Harmful if swallowed

H312 Harmful in contact with skin

H332 Harmful if inhaled

H411 Toxic to aquatic life with long lasting effects

Precautionary statement(s)

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

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

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

P271 Use only outdoors or in a well-ventilated area.

P273 Avoid release to the environment.


P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/\u2026if you feel unwell.

P330 Rinse mouth.

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

P312 Call a POISON CENTER/doctor/\u2026if you feel unwell.

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

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

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P391 Collect spillage.




P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification


3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
4-chlorophenol 4-chlorophenol 106-48-9 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. Refer for medical attention.

In case of skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .

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. Do NOT induce vomiting. Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

Inhalation causes headache, dizziness, weak pulse. Ingestion causes irritation of mouth and stomach; headache, dizziness, weak pulse. Contact with eyes causes severe irritation and burning. Contact with skin causes irritation and burn; if absorbed, causes same symptoms as inhalation. (USCG, 1999)

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

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as 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 patient quiet and maintain normal body temperature. Obtain medical attention. /Phenols and related compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media


5.2 Specific hazards arising from the chemical

Special Hazards of Combustion Products: Toxic and irritating hydrogen chloride and chlorine gases may form in fires. (USCG, 1999)

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

Personal protection: chemical protection suit and filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.

6.3 Methods and materials for containment and cleaning up

Phenolic cmpd in wastewater are oxidized with hydrogen peroxide catalyzed by iron(3+)-iron(2+). When the wt ratio of phenol:hydrogen peroxide is 1:3 and iron 5-100 ppm, more than 95% of the phenols are removed in 30 min from a 500 ppm phenol soln at pH 5-6 and 25-50\u00b0C. /Phenolic cmpd/

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

Separated from strong oxidants and food and feedstuffs. Well closed.Store in tightly closed containers in a cool, well ventilated area. Metal containers involving the transfer of this chemical should be grounded and bonded. Where possible, automatically pump liquid from drums or other storage containers to precess containers. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only non-sparking tools and equipment, especially when opening and closing containers of this chemical. Sources of ignition such as smoking and open flames, are prohibited where this chemical is used, handled, or stored in a manner that could create a potential fire or explosion hazard. /Monochlorophenols/

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

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 off-white to light tan crystals or powder
Colour Needle like, white to straw-colored crystals
Odour Characeteristic phenolic odor
Melting point/ freezing point -20\u00b0C(lit.)
Boiling point or initial boiling point and boiling range 220\u00b0C(lit.)
Flammability Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit no data available
Flash point 121\u00b0C
Auto-ignition temperature no data available
Decomposition temperature no data available
pH 1% solution is acidic to litmus
Kinematic viscosity 5 cP at 50\u00b0C
Solubility In water:2.7 g/100 mL (20 \u00baC)
Partition coefficient n-octanol/water (log value) log Kow = 2.39
Vapour pressure 1 mm Hg ( 49.8 \u00b0C)
Density and/or relative density 1.306g/mLat 25\u00b0C(lit.)
Relative vapour density 4.4 (Relative to Air)
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Volatile with steam

10.3 Possibility of hazardous reactions

COMBUSTIBLE WHEN EXPOSED TO HEAT OR FLAMECHLOROPHENOLS, SOLID are incompatible with acid chlorides, acid anhydrides and oxidizing agents. Also incompatible with iron . Liquefy and darken in color at temperatures above 42.22\u00b0C.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

no data available

10.6 Hazardous decomposition products

When heated to decomposition it emits toxic fumes of /hydrogen chloride/.

11.Toxicological information

Acute toxicity

  • Oral: LD50 Mouse oral 860 mg/kg. /From table/
  • 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


no data available

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: LC50; Species: Danio rerio (Zebra danio, length 2.5 cm); Conditions: freshwater, static, 22\u00b0C, pH 7.8-8, hardness 150 mg/L CaCO3; Concentration: 3500-10000 ug/L for 24 hr
  • Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water flea, age <72 hr); Conditions: freshwater, static, 20\u00b0C, pH 7.8-8.2, hardness 200 mg/L CaCO3, dissolved oxygen > or =2.27 mg/L; Concentration: 8070 ug/L for 24 hr (95% confidence interval: 5790-10340 ug/L); Effect: intoxication, immobilization />95% purity
  • Toxicity to algae: EC50; Species: Pseudokirchneriella subcapitata (Green algae, exponential growth phase, 50000 cells/mL); Conditions: freshwater, static, 21\u00b0C; Concentration: 38000 ug/L for 96 hr; Effect: growth, general /formulated product
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

... Complete dechlorination and aromatic ring degradation of ... 4-chlorophenol ... by 2,4-D grown cells of an Arthrobacter species isolated from slit loam.

12.3 Bioaccumulative potential

BCFs of 6.0 to 18 for a test concn of 40 ppb and BCFs of 11 to 52 for test concn of 4 ppb was determined for 4-chlorophenol in carp and 42 days exposure(1). The BCF of 4-chlorophenol in goldfish ranged from 10 to 15(2,3). According to a classification scheme(4), these BCF's suggest the potential for bioconcentration in aquatic organisms is low(SRC).

12.4 Mobility in soil

Experimentally determined Kocs in various soil conditions range from 70 to 485.6(1,3,6). The Koc in clay loam soil was determined to be 71(1). A Koc of 70 was reported for 4-chlorophenol in Brookston clay loam soil(3). Adsorption of 4-chlorophenol to the organo-clay Bentone 24 has been shown to be pH sensitive; it was 48.5% adsorbed by Bentone 24 in aqueous solution at pH 8.0 and 7.7% adsorbed by Bentone 18C at pH 7.7(4). 4-Chlorophenol did not appear to be sorbed in an experiment in a sandy aquifer(5). A Koc of 485.6 was reported in a European silt loam soil(6). According to a classification scheme(2), Koc values of zero to 50 are very highly mobile, 50 to 150 are highly mobile, and 150 to 500 are moderately mobile.

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods


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: UN2020 IMDG: UN2020 IATA: UN2020

14.2 UN Proper Shipping Name


14.3 Transport hazard class(es)

ADR/RID: 6.1 IMDG: 6.1 IATA: 6.1

14.4 Packing group, if applicable


14.5 Environmental hazards

ADR/RID: yes IMDG: yes IATA: yes

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
4-chlorophenol 4-chlorophenol 106-48-9 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 10, 2017
Revision Date Aug 10, 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%


  • IPCS - The International Chemical Safety Cards (ICSC), website:
  • HSDB - Hazardous Substances Data Bank, website:
  • IARC - International Agency for Research on Cancer, website:
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website:
  • CAMEO Chemicals, website:
  • ChemIDplus, website:
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website:
  • Germany GESTIS-database on hazard substance, website:
  • ECHA - European Chemicals Agency, website:

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:128.5563 [g/mol]
Molecular Formula:C6H5ClO
H-Bond Donor:1
H-Bond Acceptor:1
Rotatable Bond Count:0
Tautomer Count:2
Exact Mass:128.002892
MonoIsotopic Mass:128.002892
Topological Polar Surface Area:20.2
Heavy Atom Count:8
Formal Charge:0
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 Donor Count:1
Feature 3D Ring Count:1
Effective Rotor Count:0
Conformer Sampling RMSD:0.4
CID Conformer Count:1