Initial language selection is based on your web browser preferences.
**Molecular formula:** PH₃
**Molar mass:** 33,998 g/mol
**Information:** Phosphine is a colourless and very poisonous gas with a garlic smell (the odour is caused by impurities). It is a strong reducing agent. Phosphine has a very weak basic nature. In strong acid it reacts as a phosphonium salt.