Phosphine is a chemical compound. Its chemical name is phosphorus hydride. Its chemical formula is PH3. It is also called phosphane and phosphamine. It contains phosphide and hydrogen ions.
Properties[change | change source]
It is a colorless, flammable gas. It is highly toxic; it can easily kill, even when concentration levels are low. It smells like fish. It can ignite without a spark. When it burns, it makes a white cloud of phosphorus(V) oxide, which is irritating.
Preparation[change | change source]
It is made when hypophosphites and phosphites are heated. It is also made when white phosphorus reacts with warm alkali.
Uses[change | change source]
The gas is used for pest control. It is also used in making semiconductors.