Arsenic trifluoride

Arsenic trifluoride, also known as arsenic(III) fluoride, is a chemical compound. Its chemical formula is AsF3. It has arsenic and fluoride ions in it. The arsenic is in its +3 oxidation state.

Properties
Arsenic trifluoride is a colorless liquid. It melts at -8.5°C and boils at 60.4°C. It is highly toxic. It reacts with water to make arsenous acid and hydrofluoric acid, both very dangerous acids. 

Preparation
It is made by reacting arsenic trioxide with hydrofluoric acid or by reacting excess arsenic with fluorine.

Uses
It is used to change nonmetal chlorides to fluorides.

Related pages
Antimony trifluoride
Bismuth trifluoride
Arsenic trichloride
Arsenide

Category:Arsenic compounds
Category:Fluorine compounds