Boron tribromide

99% For Synthesis For Laboratory Use
CAS Number
10294-33-4
HSN Code
28129000
Molecular Formula
BBr3
Catalogue Number
AL01944
Purity
≥ 99%
Molecular Weight
250.54 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance Colorless to pale yellow fuming liquid
Shelf Life -
Packaging -
Storage Store in a cool, dry, well-ventilated area under anhydrous conditions.

Boron tribromide is a highly reactive Lewis acid halide used in organic synthesis, notably for demethylating aryl methyl ethers.

Also known as BBr3.

Catalogue No.
AL01944
CAS Number
10294-33-4
Molecular Formula
BBr3
Molecular Weight
250.54 g/mol
HSN Code
28129000
Grade
99% For Synthesis
Product Form
Substance

Colorless to pale yellow fuming liquid, density 2.60 g/mL, pungent odor; reacts violently with water.

Appearance
Colorless to pale yellow fuming liquid
Shelf Life
-
Packaging
-
Storage
Store in a cool, dry, well-ventilated area under anhydrous conditions.

1.1 — Product identifier

Chemical Name
Boron tribromide
Catalogue No.
AL01944
Product form
Substance
CAS Number
10294-33-4
EC Number
233-058-4
Grade
99% For Synthesis
EC Index Number
Not specified
Chemical Formula
BBr3
HSN Code
28129000
Synonyms
BBr3

1.2 — Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture
Used as a Lewis acid in organic synthesis.
Uses advised against
Not specified

1.3 — Details of the supplier of the safety data sheet

Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 — Emergency Contact Details

Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

2.3 — Other hazards

Other hazards
Reacts violently with water, releasing toxic fumes.

3.1 — Substance

Name
Boron tribromide
CAS No.
10294-33-4

4.1 — Description of first aid measures

First-aid measures after inhalation
Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention.
First-aid measures after skin contact
Remove contaminated clothing. Rinse skin with plenty of water for at least 15 minutes. Seek medical attention.
First-aid measures after eye contact
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention.
First-aid measures after ingestion
Do not induce vomiting. Rinse mouth. Seek medical attention immediately.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
Corrosive effects on skin, eyes, and respiratory tract; may cause burns.

4.3 — Indication of any immediate medical attention and special treatment needed

General information
Treat symptomatically. Show this safety data sheet to the treating physician.

5.1 — Extinguishing media

Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
Releases toxic fumes of HBr upon contact with water; use dry chemical, CO2, or alcohol-resistant foam for fire extinguishing.

5.3 — Advice for firefighters

Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.

6.1.1 — For non-emergency personnel

Emergency procedures
Evacuate area. Contain spill and prevent entry into waterways. Use appropriate PPE.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Neutralize with a suitable agent (e.g., sodium bicarbonate) and absorb with inert material.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Handle under strictly anhydrous conditions with appropriate PPE including gloves and goggles.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 — Conditions for safe storage, including any incompatibilities

Storage conditions
Store in tightly closed containers in a cool, dry, well-ventilated area away from moisture.

8.2 — Exposure controls

Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use a NIOSH-approved respirator if exposure limits are exceeded.

9.1 — Information on basic physical and chemical properties

Physical state
Liquid
Colour
Colorless to pale yellow
Odour
Pungent
Odour threshold
Not specified
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
Not specified
Melting point
-60 °C
Freezing point
Not specified
Boiling point
90 °C
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not specified
Flammability (solid, gas)
Not flammable
Vapour pressure
Not specified
Relative vapour density at 20°C
Not specified
Density
2.60 g/mL
Solubility
Reacts violently with water
Log Pow
Not specified
Viscosity, kinematic
Not specified
Viscosity, dynamic
Not specified
Explosive properties
Not explosive
Oxidising properties
Not oxidizing
Explosive limits
Not applicable

10.1 — Reactivity

Reactivity
Highly reactive with water and moisture; forms HBr and boric acid upon hydrolysis.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
No dangerous reactions known under normal conditions of use.

10.4 — Conditions to avoid

Conditions to avoid
Avoid contact with incompatible materials and excessive heat.

10.5 — Incompatible materials

Incompatible materials
Water, alcohols, amines, and strong bases.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Not specified

11.1 — Information on toxicological effects

Acute toxicity
Toxic by inhalation, skin contact, and ingestion.
Skin corrosion/irritation
Causes severe skin burns.
Serious eye damage/irritation
Causes serious eye damage.
Respiratory or skin sensitisation
Not a skin sensitizer.
Germ cell mutagenicity
Not classified
Carcinogenicity
Not classified
Specific target organ toxicity (single exposure)
May cause respiratory irritation.
Specific target organ toxicity (repeated exposure)
Not classified

12.1 — Toxicity

Toxicity information
Not specified

12.2 — Persistence - degradability

Persistence - degradability
Not specified

12.3 — Bioaccumulative potential

Bioaccumulative potential
Not specified

12.4 — Mobility in soil

Mobility in soil
Not specified

12.6 — Other adverse effects

Environmental precautions
Not specified

13.1 — Waste treatment methods

Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.

14.1 — UN number

UN-No. (ADR)
UN 2692
UN-No. (IMDG)
UN 2692
UN-No. (IATA)
UN 2692
UN-No. (ADN)
UN 2692
UN-No. (RID)
UN 2692

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
Boron tribromide
Proper Shipping Name (IMDG)
Boron tribromide
Proper Shipping Name (IATA)
Boron tribromide
Proper Shipping Name (ADN)
Boron tribromide
Proper Shipping Name (RID)
Boron tribromide

14.3 — Transport hazard class(es)

Transport hazard class(es)
8

14.4 — Packing group

Packing group (ADR)
I
Packing group (IMDG)
I
Packing group (IATA)
I
Packing group (ADN)
I
Packing group (RID)
I

14.5 — Environmental hazards

Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available

15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture

15.1.1 EU-Regulations
Not specified

Used as a Lewis acid reagent for aryl ether demethylation and other organic synthesis applications.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL01944
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
250.54 g/mol
Test Standard Observed
Description Colorless to Amber liquid Colorless to Amber liquid
Assay (metal basis) Min. 99% 99%
Melting point: -46° -46°
Boiling point: 90° 90°
Density: 2.643 2.643

The above product complies with LR grade

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
99% For Synthesis ≥ 99% Boiling point: 90 °C ≤ 0.5% Not applicable Not specified Reacts violently with water
View full Technical Data Sheet

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