Product Identification

Product Name

Carbon tetrabromide

Synonyms

Tetrabromomethane

CAS

558-13-4

Formula

CBr4

Molecular Weight

331.65

EINECS

209-189-6

RTECS

FG4725000

RTECS Class

Other

Beilstein/Gmelin

1732799

Beilstein Reference

4-01-00-00085

EC Class

harmful, irritant

Physical and Chemical Properties

Appearance

Colorless crystals or tablets with a slight odor.

Solubility in water

Insoluble

Melting Point

49

Boiling Point

190

Vapor Pressure

1.2 (25 C)

Density

3.42 g/cm3

Partition Coefficient

3.42

Heat Of Vaporization

42.00 kJ/mol

Heat Of Combustion

-423 kJ/mol

Usage

Organic synthesis.

Vapor Density

11.4

Refractive Index

1.5942 (100 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. Never give anything by mouth to an unconscious person.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Do NOT allow victim to rub or keep eyes closed.

Handling and Storage

Storage

No special storage requirements.

Handling

Wash thoroughly after handling.

Hazards Identification

Inhalation

May cause burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Inhalation of dust causes severe irritation of the nose and throat. Vapors are extremely irritating to the respiratory tract.

Skin

Harmful if absorbed through the skin.

Eyes

Lachrymator. Contact may cause irritation, tearing, and burning pain.

Ingestion

Poison by ingestion.

Hazards

Containers may explode when heated. Runoff may pollute waterways.

EC Risk Phrase

R 20/21/22 36/37/38

EC Safety Phrase

S 23 26 36/37/39

UN (DOT)

2516

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Exposure Effects

Chronic exposure may cause liver damage.

Exposure limit(s)

TLV: 0.1 ppm; 1.4 mg/m3 (as TWA); 0.3 ppm; 4.1 mg/m3 (as STEL) (ACGIH 1991-1992). NIOSH REL: TWA 0.1 ppm (1.4 mg/m3) ST 0.3 ppm (4 mg/m3)

Fire Fighting Measures

Flash Point

65

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam.

Fire Potential

Not flammable by standard tests in air

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases, lithium, hexacyclohexcyldilead.

Decomposition

Carbon monoxide, carbon dioxide, hydrogen bromide.

Combustion Products

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Transport Information

UN Number

2516

Hazard Class

6.1

Packing Group

III

HS Code

2903 30 36