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BROMOTRIFLUOROMETHANE

CAS No.
75-63-8
Chemical Name:
BROMOTRIFLUOROMETHANE
Synonyms
CF3Br;halon-1301;CBrF3;H-1301;halon1301;Bromotrifluromethane;r13b1;f13b1;fe1301;fc13b1
CBNumber:
CB9430336
Molecular Formula:
CBrF3
Lewis structure
cbrf3 lewis structure
Molecular Weight:
148.91
MDL Number:
MFCD00000370
MOL File:
75-63-8.mol
Last updated:2023-05-04 15:13:37

BROMOTRIFLUOROMETHANE Properties

Melting point -168°C
Boiling point -58°C
Density 1,58 g/cm3
vapor pressure >760 at 20 °C (NIOSH, 1997)
refractive index 1.2380
solubility Soluble in chloroform (Weast, 1986) and many other solvents, particularly chlorinated hydrocarbons.
form A gas
color Colorless gas with an ether-like odor
Water Solubility 0.03 wt % at 20 °C (NIOSH, 1997)
Henry's Law Constant (atm?m3/mol): 0.500 at 25 °C (Hine and Mookerjee, 1975)
Exposure limits NIOSH REL: TWA 1,000 ppm (6,100 mg/m3), IDLH 40,000 ppm; OSHA PEL: TWA 1,000 ppm.
CAS DataBase Reference 75-63-8(CAS DataBase Reference)
FDA UNII 52231LCA7R
EPA Substance Registry System Halon 1301 (75-63-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS07,GHS04
Signal word  Warning
Hazard statements  H280-H336-H420
Precautionary statements  P410+P403-P502-P261-P271-P304+P340-P312-P403+P233-P405-P501
Risk Statements  20
Safety Statements  23-36/37/39-38
OEB A
OEL TWA: 1000 ppm (6100 mg/m3)
RIDADR  1009
DOT Classification 2.2 (Nonflammable gas)
HazardClass  2.2
Toxicity LC50 (inhalation) for mice 381 gm/m3, rats 416 gm/m3 (quoted, RTECS, 1985).
IDLA 40,000 ppm

BROMOTRIFLUOROMETHANE Chemical Properties,Uses,Production

Chemical Properties

Trifluorobromomethane is a colorless gas with a slight ethereal odor. Shipped as a liquefied compressed gas.

Uses

Fire extinguishing agent; refrigerant.

Uses

Used as fire extinguishing agent for oil, electrical equipment, organic solvent, natural gas and a variety of organics, especially for important military and civilian sites.

Synthesis Reference(s)

Journal of the American Chemical Society, 68, p. 968, 1946 DOI: 10.1021/ja01210a017

General Description

A colorless, odorless gas at room conditions Shipped as a liquid confined under its own vapor pressure. Noncombustible. Nontoxic but can asphyxiate by the displacement of air. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Exposure of the container to prolonged heat or fire can cause BROMOTRIFLUOROMETHANE to rupture violently and rocket.

Air & Water Reactions

Slightly soluble in water.

Reactivity Profile

BROMOTRIFLUOROMETHANE may react with aluminum to produce substantial heat. Other halogenated hydrocarbons, such as fluorotrichloromethane, dichlorodifluoromethane, chlorodifluoromethane, tetrafluoromethane produce sufficient heat in this way to melt aluminum pieces. The vigor of the reaction appears to depend on the degree of fluorination and the vapor pressure [Chem. Eng. News 39(27):44 1961].

Health Hazard

Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating, corrosive and/or toxic gases.

Fire Hazard

Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.

Safety Profile

Wildly toxic by inhalation. Incompatible with aluminum. When heated to decomposition it emits toxic fumes of Fand Br-. See also BROMIDES and FLUORIDES.

Potential Exposure

This material is used as a fire extinguishing agent, a chemical intermediate, and as a refrigerant.

Shipping

UN1009 Bromotrifluoromethane or Refrigerant gas, R-13B, Hazard Class: 2.2; Labels: 2.2-Nonflammable gas. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.

Purification Methods

Purify the gas by passing it through a tube containing P2O5 on glass wool into a vacuum system where it is frozen out in a quartz tube and degassed by a cycles of freezing, evacuating and thawing. [Beilstein 1 III 83, 1 IV 73.]

Incompatibilities

Keep away from chemically active metals, such as calcium, powdered aluminum; zinc, magnesium. Attacks some plastics, rubber, and coatings.

Waste Disposal

Return refillable compressed gas cylinders to supplier. Incineration, preferably after mixing with another combustible fuel. Care must be exercised to assure complete combustion to prevent the formation of phosgene. An acid scrubber is necessary to remove the halo acids produced.

FC 13B1 BROMOTRIFLUOROMETHANE BROMOFLUOROFORM HALOCARBON 13 B1 TRIFLUOROMETHYL BROMIDE TRIFLUOROBROMOMETHANE TRIFLUOROBROMOMETHANE (BROMOTRIFLUOROMETHANE) fc13b1 fe1301 FKWR13B1 flugex13b1 Fluorocarbon 1301 fluorocarbon1301 Fluorocarbon13B1 Freon 13V1 Halon 1301 khladon13b1 KαltemittelR13B1 methane,bromotrifluoro- Monobromotrifluoromethane Perfluoromethylbromide R 13B1 r13b1 r-13b1 Refrigerant 13b1 refrigerant13b1 RefrigerantR13B1 Trifluoromonobromomethane Trifluorobromomethane CF3Br BROMOTRIFLUOROMETHANE (R 13B1) BFC-13B1 CFC13B1 CFC-13B1 daiflon13b1 F 13B1 f13b1 f-13b1 bromotrifluoro-methan Bromotrifluorormethane Bromtrifluormethan Carbon monobromide trifluoride Carbonbromidefluoride(CBrF3) carbonmonobromidetrifluoride freon 1381 Halon-1301 (Bromotrifluoromethane) Bromotrifluoromethane (Halon1301) Bromotrifluoromethane (Freon #13b1) Caterpillar Pressurized Cylinders (Halon 1301) 5G2960 Fron 13B1 bromotrifluoromethane CBrF3 BromotrifL uoromethane Bromomethane trifluoromethane H-1301 halon1301 halon-1301 CF3Br Bromotrifluromethane