Chromium(III) fluoride

Chemical properties

Green crystalline powder or crystals

Physical properties

Dark green needles (anhydrous salt) or green hexagonal crystals (trihydrate); density 3.8 g/cm³ (anhydrous fluoride), 2.2 g/cm³ (trihydrate); anhydrous salt melts at 1,100°C and sublimes above this temperature; practically insoluble in water and ethanol (anhydrous salt); trihydrate sparingly soluble in water; soluble in HCl forming a violet solution.

The Uses of Chromium(III) fluoride

Printing and dyeing woolens, moth-proofing, halogenation catalyst.

The Uses of Chromium(III) fluoride

Used in the preparation of a mixed-metal fluoride catalyst for synthesis of HFC-134a.

General Description

Chromic fluoride solution is a green crystalline solid dissolved in water. CHROMIUM(III) FLUORIDE is corrosive to metals and tissue.

Air & Water Reactions

Water soluble.

Reactivity Profile

Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas.

Hazard

Irritant to skin and eyes, especially in solution.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Flammability and Explosibility

Not classified

Safety Profile

A poison by ingestion. A corrosive. When heated to decomposition it emits toxic vapors of Cr and F-.