BrF5

Bromine pentafluoride

Bromine fluoride (BrF5);Bromine pentafluoride

7789-30-2

BrF5

InChIKey=XHVUVQAANZKEKF-UHFFFAOYSA-N

174.9

174.90

232-157-8

UPI6B7Y9UQ

0974

1745

Liquid|Colorless fuming liquid

Pesticide Intermediates

0

2.94660

Bromine pentafluoride appears as a colorless, fuming liquid with a pungent odor. Used to make other chemicals and in rockets. Very toxic by inhalation. Corrosive to metals and tissue. Will accelerate the burning of combustible material. If the containers are involved in a fire they may rupture violently and rocket.

2.4604 g/cm³ @ Temp: 25 °C

-60.5 °C

40.76 °C

Index of refraction: 1.3529

H2O: Insoluble

Separate from acids, alkalies, halogens, salts, metals, organic matter. Store in a cool, dry, well-ventilated location. Keep cylinders restrained ...

328 mmHg

Relative vapour density (air = 1): 6.1

Decomposes highly toxic hydrogen fluoride in case of water and moisture; flammable in case of organic matter; emits bromine and fluorine gas in case of heat and acid

Pungent odor

Fumes in air. Thermostable up to 460 °C. Very reactive, usually with conflagration. Produces an explosion on contact with water. Does not attack quartz when dry.|An extremely vigorous fluorinating agent. Will react with water or steam to produce toxic and corrosive fumes. Explodes or ignites on contact with hydrogen-containing materials (e.g. acetic acid, ammonia, benzene, ethanol, hydrogen, hydrogen sulfide, methane cork, grease, paper, wax, chloromethane).|Reacts with every known element except inert gases, nitrogen, and oxygen|Explodes on contact with water. Products of this rapid reaction include HF and possibly Br2 ... is decomposed exothermically by water to hydrofluoric acid and other materials.

Produces corrosive fumes in moist air. Reacts explosively upon contact with water. Very reactive, usually with conflagration [Merck, 11th ed. 1989]. Reaction with water is violent, oxygen being evolved, [Mellor 2 Supp. 1:172 1956]. Explodes on contact with water. Products of this rapid reaction include HF and possibly Br2 (Lewis 2000). HBr gas might also be produced upon reaction with water. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of Hydrogen Fluoride (hydrofluoric acid) gas will be created in 1.2 minutes. Experimental details are in the following: "Development of the Table of Initial Isolation and Protective Distances for the 2008 Emergency Response Guidebook", ANL/DIS-09-2, D.F. Brown, H.M. Hartmann, W.A. Freeman, and W.D. Haney, Argonne National Laboratory, Argonne, Illinois, June 2009.

Oxidizing Agents, Strong

Strong Oxidizing Agent

BROMINE PENTAFLUORIDE an oxidizing agent. Is decomposed exothermically by water to hydrofluoric acid and other materials. Reacts with these other hydrogen-containing substances (among others) vigorously enough to cause a fire or explosion: acetic acid, ammonia, benzene, ethanol, hydrogen, hydrogen sulfide, methane, cork, grease paper, wax. Mixtures with acids, halogens, metal halides, metals, nonmetals, or metal oxides at ambient or slightly above ambient temperatures have resulted in violent reaction (nitric acid, sulfuric acid, chlorine, iodine, ammonium chloride, potassium iodide, boron powder, selenium, tellurium, aluminum powder, bismuth, cobalt powder, iron powder, arsenic, nickel powder, chromium trioxide, charcoal, red phosphorus, sulfur dioxide, magnesium oxide. Solutions of acetonitrile and 9% bromine pentafluoride have been found to decompose violently at ambient temperatures. Mixtures of perchloryl perchlorate and bromine pentafluoride form shock sensitive explosives. [Bretherick, 5th ed., 1995, p. 640].

Noncombustible Liquid, but a very powerful oxidizer.

The vapour is heavier than air.

30.6 kJ/mol at 297-314 deg K, 31.2 kJ/mol at 213-297 deg K