3D Mol Similar

Boron oxide

: Iupac Name：oxo(oxoboranyloxy)borane; CAS No.: 1303-86-2; Molecular Weight：69.6202; Modify Date.: 2023-03-12 20:08; Introduction:
Used in herbicides, fire resistant additive for paints, electronics, liq encapsulation techniques.
View more+

Request For Quotation

1. Names and Identifiers

: 1.1 Name; Boron oxide; 1.2 Synonyms; 2,4,5-Trioxa-1,3-diborabicyclo[1.1.1]pentane 215-125-8 B2O3 Bicyclo[1.1.1]diboroxane B-O Boria Boric anhydride BORIC OXIDE boricacid(hbo2),anhydride boricoxide(b2o3) Boron oxide (B2O3) BORON TRIOXIDE diboron trioxide Dibortrioxid EINECS 215-125-8 fusedboricacid MFCD00011315 oxydedebore wellno.109b; View all

1.3 CAS No.: 1303-86-2

1.4 CID: 518682

1.5 EINECS(EC#): 215-125-8

1.6 Molecular Formula: B2O3 (isomer)

1.7 Inchi: InChI=1S/B2O3/c3-1-5-2-4

1.8 InChIkey: JKWMSGQKBLHBQQ-UHFFFAOYSA-N

1.9 Canonical Smiles: B(=O)OB=O

1.10 Isomers Smiles: B(=O)OB=O

2. Properties

2.1 Density: 2.46

2.1 Melting point: 450℃

2.1 Boiling point: 1860℃

2.1 Refractive index: INDEX OF REFRACTION: 1.61

2.1 Flash Point: 1860°C

2.2 Precise Quality: 72.01900

2.2 PSA: 43.37000

2.2 logP: -1.60300

2.2 Solubility: 36g/l

2.3 VaporDensity: >1 (vs air)

2.4 Appearance: white powder or glassy flakes

2.5 Storage: Hygroscopic. Store under Nitrogen. Ambient temperatures.

2.6 Chemical Properties: white powder or glassy flakes

2.7 Color/Form: Colorless, brittle, vitreous, semitransparent lumps or hard, white crystals
Colorless, glassy or hexagonal crystals, hygroscopic
Colorless powder or vitreous crystals

2.8 Corrosivity: Very corrosive to metals in the presence of oxygen

2.9 Ionization Potential: 13.50 eV

2.10 Odor: Odorless

2.11 PH: pH = 5.1 at 20 °C 1.0% solution

2.12 Water Solubility: 36 g/L (25 oC)

2.13 Spectral Properties: INDEX OF REFRACTION: 1.61

2.14 Stability: Stable. Moisture sensitive. Incompatible with water.

2.15 StorageTemp: Inert atmosphere,Room Temperature

3. Use and Manufacturing

3.1 Potential Exposure: Boron oxide is used in glass manufactureand the production of other boron compounds. It isused in fluxes, enamels, drying agents, and as a catalyst.

3.2 Produe Method: Boric oxide is produced by thermal fusion of boric acid,forming a clear transparent glass-like solid that is subsequentlyground into white vitreous granules. It is usedprincipally in the manufacture of glass and vitreousproducts.

3.3 Usage: Used in herbicides, fire resistant additive for paints, electronics, liq encapsulation techniques.

4. Safety and Handling

4.1 Symbol: GHS08

4.1 Hazard Codes: Xi

4.1 Signal Word: Danger

4.1 Risk Statements: R36/37/38

4.1 Safety Statements: S26;S37/39

4.1 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.
During production processes, atmospheric contamination by vapors and aerosols of ... boric anhydride ... should be minimized by use of local exhaust ventilation, process mechanization, and enclosure ...
Skin that becomes contaminated with boron oxide should be promptly washed or showered with soap or mild detergent and water to remove any boron oxide. Employees who handle boron oxide or non-aqueous liquids containing boron oxide should wash their hands thoroughly with soap or mild detergent and water before eating, smoking or using toilet facilities.
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.
The worker should immediately wash the skin when it becomes contaminated.
Work clothing that becomes wet or significantly contaminated should be removed or replaced.
SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants.; View all

4.2 Hazard Declaration: H360FD

4.2 Cleanup Methods: Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place (extra personal protection: P1 filter respirator for inert particles).

4.3 DisposalMethods: 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.

4.4 RIDADR: NONH for all modes of transport

4.4 FirePotential: Noncombustible

4.5 Caution Statement: P201-P308 + P313

4.5 Formulations/Preparations: GRADES: Glass or fused form; powder, technical or high purity 99.99+%

4.6 Incompatibilities: Incompatible with bromine pentafluoride,calcium oxide. Reacts slowly with water, forming boric acid.Reacts exothermically with alkaline material and strongbases. May react with strong reducing agents such as metalhydrides, metal alkyls to generate flammable or explosivegases. May react violently on contact with bromine pentafluoride.Corrosive to metals in the presence of air. Boron oxide Preparation Products And Raw materials Preparation Products

4.7 WGK Germany: 1

4.7 RTECS: ED7900000

4.7 Protective Equipment and Clothing: 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 boron oxide.
Non impervious clothing which becomes contaminated with boron oxide should be removed promptly and not reworn until the boron oxide is removed from the clothing.
Employees should be provided with and required to use dust and splash proof safety goggles where boron oxide or non-aqueous liquids containing boron oxide may contact the eyes.
Wear appropriate personal protective clothing to prevent skin contact.
Wear appropriate eye protection to prevent eye contact.
Respirator Recommendations: Up to 50 mg/cu m: (Assigned Protection Factor = 5) Any dust and mist respirato. Substance reported to cause eye irritation or damage; may require eye protection.
Respirator Recommendations: Up to 100 mg/cu m: (Assigned Protection Factor = 10) Any dust and mist respirator except single-use and quarter-mask respirators. If not present as fume. Substance reported to cause eye irritation or damage; may require eye protection./(Assigned Protection Factor = 10) Any supplied-air respirator. Substance reported to cause eye irritation or damage; may require eye protection.
Respirator Recommendations: Up to 250 mg/cu m: (Assigned Protection Factor = 25) Any supplied-air respirator operated in a continuous-flow mode. Substance reported to cause eye irritation or damage; may require eye protection./(Assigned Protection Factor = 25) Any powered, air-purifying respirator with a dust and mist filter. If not present as fume. Substance reported to cause eye irritation or damage; may require eye protection.
Respirator Recommendations: Up to 500 mg/cu m: (Assigned Protection Factor = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(Assigned Protection Factor = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter. Substance reported to cause eye irritation or damage; may require eye protection./(Assigned Protection Factor = 50) Any self-contained breathing apparatus with a full facepiece/(Assigned Protection Factor = 50) Any supplied-air respirator with a full facepiece.
Respirator Recommendations: Up to 2000 mg/cu m: (Assigned Protection Factor = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode.
Respirator Recommendations: Emergency or planned entry into unknown concentrations or IDLH conditions: (Assigned Protection Factor = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(Assigned Protection Factor = 10,000) 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 positive-pressure breathing apparatus.
Respirator Recommendations: Escape: (Assigned Protection Factor = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus.; View all

4.8 Reactivities and Incompatibilities: Attacks metal in the presence of moist air.
Water [Note: Reacts slowly with water to form boric acid].
When a mixture of boric acid and calcium oxide in any proportion is projected into fused calcium chloride, the mass becomes incandescent.

4.9 Report: Reported in EPA TSCA Inventory.

4.10 Skin, Eye, and Respiratory Irritations: Potential symptoms of overexposure are irritation of eyes, skin, respiratory system; cough; conjunctivitis; skin erythema.
... May produce irritation of the nasal mucous membranes, the respiratory tract, and eyes. /Boron compounds/

4.11 Safety

Hazard Codes of?Boric anhydride (CAS NO.1303-86-2):? Irritant Xi
Risk Statements:?36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements:?26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S37/39:Wear suitable gloves and eye/face protection.

Moderately toxic by ingestion and intraperitoneal routes. An eye and skin irritant. A pesticide. Mixed with CaO and put into fused CaCl₂, the mixture incandesces.

4.12 Sensitive: Hygroscopic

4.13 Specification: ?Boric anhydride is also named as Diboron trioxide ; Boric oxide ; Boron trioxide and so on. It's glassy colorless crystals or powder. Its surface is creamy sense and it's tasteless.

4.14 Toxicity

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	intraperitoneal	1868mg/kg (1868mg/kg)	?	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 27, 1982.
mouse	LD50	oral	3163mg/kg (3163mg/kg)	?	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 27, 1982.

View all

5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Reproductive toxicity, Category 1B

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word	Danger
Hazard statement(s)	H360FD
Precautionary statement(s)
Prevention	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P280 Wear protective gloves/protective clothing/eye protection/face protection.
Response	P308+P313 IF exposed or concerned: Get medical advice/ attention.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

View all

6. Other Information

6.0 Merck: 14,1337

6.1 Chemical Properties: white powder or glassy flakes

6.2 Chemical Properties: Boron oxide is a noncombustible, colorless, semitransparent lumps or hard, white, odorless crystals, with slightly bitter taste.

6.3 Uses: In metallurgy; in analysis of silicates to determine SiO2 and alkalies; in blowpipe analysis.

6.4 General Description: Colorless, semi-transparent glassy lumps or hard white odorless crystals. Mp 450°C; bp: 1860°C. Density: 2.46 g cm-3. Moderately soluble in water. Used as an insecticide; as the starting material for the synthesis of other boron compounds; as a fluxing agent in enamels and glasses; and in mixture with 2-6% boron nitride, as a bonding agent in the hot isostatic pressing of boron nitride ceramics.

6.5 Reactivity Profile: Boron oxide is non-combustible. Of generally low chemical reactivity. Reacts exothermically but slowly with water to form boric acid, a weak acid. Reacts exothermically with strong bases. May react with strong reducing agents such as metal hydrides, metal alkyls to generate flammable or explosive gases. May react violently on contact with bromine pentafluoride. Corrosive to metals in the presence of air.

6.6 Hazard: Eye and upper respiratory tract irritant.

6.7 Potential Exposure: Boron oxide is used in glass manufacture and the production of other boron compounds. It is used in fluxes, enamels, drying agents, and as a catalyst.

6.8 First aid: If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Boron Oxide 455 Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.

6.9 Shipping: UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9—Miscellaneous hazardous material, Technical Name Required.

6.10 Incompatibilities: Incompatible with bromine pentafluoride, calcium oxide. Reacts slowly with water, forming boric acid. Reacts exothermically with alkaline material and strong bases. May react with strong reducing agents such as metal hydrides, metal alkyls to generate flammable or explosive gases. May react violently on contact with bromine pentafluoride. Corrosive to metals in the presence of air.

6.11 Usage: It is used as a flux, an acid catalyst and a chemical intermediate in production of boron halides, esters, carbide, nitride, and metallic borides. Boron oxide has shown a promising effect on glycerol hydrogenolysis to 1,2-propanediol. It is also an essential material for the preparation of cordierite ceramics from Talc.

6.12 Usage: Boron oxide is used as a flux, an acid catalyst and a chemical intermediate in production of boron halides, esters, carbide, nitride and metallic borides. Boron oxide has shown a promising effect on glycerol hydrogenolysis to 1,2-propanediol. It is also an essential material for the preparation of cordierite ceramics from talc. It is actively involved in the production of borosilicate glass. It is an additive used in high-temperature lubricants.

6.13 Usage: Boron oxide is used as a flux, an acid catalyst and a chemical intermediate in the production of boron halides, esters, carbide, nitride and metallic borides. Boron oxide has shown a promising effect on glycerol hydrogenolysis to 1,2-propanediol. It is also an essential material for the preparation of cordierite ceramics from talc. It is actively involved in the production of borosilicate glass. It is an additive used in high-temperature lubricants and dopants in semiconductor materials.Boron oxide is used as a fluxing agent for glass and enamels and as an additive used in glass fibers. It is used in the production of borosilicate glass, the raw material of chemical heat-treatment dissolved boron, organic synthesis catalyst and dopants use in semiconductor materials.

6.14 Usage: Boron oxide is used as a flux, an acid catalyst and a chemical intermediate in the production of boron halides, esters, carbide, nitride and metallic borides. Boron oxide has shown a promising effect on glycerol hydrogenolysis to 1,2-propanediol. It is also an essential material for the preparation of cordierite ceramics from talc. It is actively involved in the production of borosilicate glass. It is an additive used in high-temperature lubricants and dopants in semiconductor materials.

6.15 Usage: In the electronics industry as a liquid encapsulent for Czochralski-type growth of III-V semiconductor single crystals (e.g., GaAs, GaP, InP)

6.16 Usage: In the electronics industry as a liquid encapsulent for Czochralski-type growth of III-V semiconductor single crystals (e.g., GaAs, GaP, InP).Boron oxide is used as a flux, an acid catalyst and a chemical intermediate in the production of boron halides, esters, carbide, nitride and metallic borides. It has shown a promising effect on glycerol hydrogenolysis to 1,2-propanediol. It is also an essential material for the preparation of cordierite ceramics from talc. It is actively involved in the production of borosilicate glass. It is an additive used in high-temperature lubricants, heatproof glasswares and dopants in semiconductor materials.

6.17 Usage: In the electronics industry as a liquid encapsulant for Czochralski-type growth of III-V semiconductor single crystals (e.g., GaAs, GaP, InP)Boron oxide is used as a flux, an acid catalyst and a chemical intermediate in the production of boron halides, esters, carbide, nitride and metallic borides. Boron oxide has shown a promising effect on glycerol hydrogenolysis to 1,2-propanediol. It is also an essential material for the preparation of cordierite ceramics from talc. It is actively involved in the production of borosilicate glass. It is an additive used in high-temperature lubricants.

6.18 Physical properties: Colorless glassy solid or vitreous crystal; hexagonal crystal system; slightly bitter taste; hygroscopic; density 2.55 g/cm³; melts at 450°C; vaporizes at 1,500°C; slightly soluble in cold water (3.3%), soluble in alcohol and boiling water (20%).

6.19 Uses: A saturated solution of H3BO3 contains about 2% of the compound at 0 C, increasing to about 39% at 100 C. The compound also is soluble in alcohol. In preparations, solutions of boric acid are nonirritating and slightly astringent with antiseptic properties. Although no longer used as a preservative for meats, boric acid finds extensive use in mouthwashes, nasal sprays, and eye-hygiene formulations. Boric acid (sometimes with borax) is used as a fire-retardant. A commercial preparation of this type (Minalith) consists of diammonium phosphate, ammonium sulfate, sodium tetraborate, and boric acid. The tanning industry uses boric acid in the deliming of skins where calcium borates, soluble in H2O, are formed. As sold commercially, boric acid is B3O3·3H2O, prepared by adding HCl or H2SO4 to a solution of borax.

6.20 Uses: In preparation of fluxes; component of enamels and glass; catalyst in organic reaction

6.21 Uses: Boron oxide was used as the intermediate glass layer at a bonding temperature of 450°C. In preparation of fluxes; component of enamels and glass; catalyst in organic reaction.
In metallurgy; in analysis of silicates to determine SiO2 and alkalies; in blowpipe analysis.

6.22 Preparation: Boric oxide is produced by treating borax with sulfuric acid in a fusion furnace. At temperatures above 750°C, the molten boric acid layer separates out from sodium sulfate. It then is decanted, cooled, and obtained in 96-97% purity. Boric acid above 99% purity may be obtained by fusing granular material.
Boric oxide may be prepared by heating boric acid.
2B(OH)₃ → B2O₃ + 3H₂O

6.23 Production Methods: Boric oxide is produced by thermal fusion of boric acid, forming a clear transparent glass-like solid that is subsequently ground into white vitreous granules. It is used principally in the manufacture of glass and vitreous products.

6.24 General Description: Colorless, semi-transparent glassy lumps or hard white odorless crystals. Mp 450°C; bp: 1860°C. Density: 2.46 g cm-3. Moderately soluble in water. Used as an insecticide; as the starting material for the synthesis of other boron compounds; as a fluxing agent in enamels and glasses; and in mixture with 2-6% boron nitride, as a bonding agent in the hot isostatic pressing of boron nitride ceramics.

6.25 Health Hazard: Boron oxide is an eye and respiratory irritant. In 113 workers exposed to boron oxide and boric acid dusts, there were statistically significant increases in symptoms of eye irrita- tion; dryness of the mouth, nose, and throat; sore throat; and productive cough compared with controls. The mean exposure level was 4.1mg/m3 , with a range of 1.2–8.5mg/m3 . Exposures may occasionally have exceeded 10 mg/m3 . Because of mixed exposures, the study does not indicate whether boron oxide or boric acid dust is more important in causing symp- toms, nor does it indicate the minimum duration of exposure necessary to produce symptoms.
Excessive absorption of boron oxide may lead to cardiovascular collapse, alterations in temperature regulation, and coma.

6.26 Biochem/physiol Actions: Boric anhydride is an oxide of boron that shows antimicrobial property along with lower aminoalcohols.

7. Computational chemical data

Molecular Weight: 69.6202g/mol
Molecular Formula: B₂O₃
Compound Is Canonicalized: True
XLogP3-AA: null
Exact Mass: 70.0033542
Monoisotopic Mass: 70.0033542
Complexity: 34.2
Rotatable Bond Count: 0
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 3
Topological Polar Surface Area: 43.4
Heavy Atom Count: 5
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Isotope Atom Count: 0
Covalently-Bonded Unit Count: 1
CACTVS Substructure Key Fingerprint: AAADcQMAMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

8. Question & Answer

What are the properties, applications, and environmental impacts of Boron oxide? Sep 04 2023
Boron oxide (Boron Trioxide) is an inorganic compound with the chemical formula B2O3. It is a white solid formed by the reaction of boron with oxygen, and it has various characteristics that make it w..
What are the uses and production methods of Boron Oxide? Feb 26 2023
Boron oxide, also known as boric oxide or boria, is a colorless transparent solid that is often glassy in nature. It is difficult to crystallize and has various industrial applications. This article ..
What are the properties and uses of Boron Oxide? Jan 27 2023
Boron oxide, also known as boron anhydride, is a colorless glassy crystal or powder with a melting point of 450℃. It has strong hygroscopicity and transforms into boric acid, so it should be stored i..
How to Prepare High Purity Boron Oxide Powder? Sep 11 2021
High purity boron oxide can have two different appearances: glass-like fragments or white powder. Boron oxide is extracted from boron-magnesium ore, with a content ranging from 3% to 30%. When the bor..

9. Recommended Suppliers

Global200SuppliersView all >>

Henan Bao Enluo International Trade Co. Ltd Diamond member

1YR

Products:Pharmaceutical intermediates
Tel:173-31933971-17331933971
Email:deasea125996@gmail.com

BORIC OXIDE CAS 1303-86-2

Purity:99%Packing: 200kg/bag FOB
Price: 100 USD/kg
Time: 2023/09/21

Inquire

Wuhan Pharmchem Co., LTD. Diamond member

2YRS

Products:Pharma &Food Intermediates Water Treatment Chemicals Industrial Specialties Fine Chemicals
Tel:86-27-85835203
Email:steven@cspharmchem.com

Boric anhydride Boron oxide 99.5%