phosphine
Sign in to savePhosphine (IUPAC name: phosphane) is a colorless, flammable, highly toxic compound with the chemical formula , classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane (). With traces of present, is spontaneously flammable in air (pyrophoric), burning with a luminous flame. Phosphine is a highly toxic respiratory poison, and is immediately dangerous to life or health at 50 ppm. Phosphine has a trigonal pyramidal structure.
AI overview
Phosphine is a colorless, flammable chemical compound that is highly toxic to humans, especially when inhaled, and can spontaneously catch fire in air when impurities are present. It is used in various industrial and agricultural applications, though its extreme danger requires careful handling and safety precautions.
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Article
19 sectionsContents
- History
- Structure and reactions
- Preparation and occurrence
- Laboratory routes
- Occurrence
- Possible extraterrestrial biosignature
- Applications
- Organophosphorus chemistry
- Microelectronics
- Fumigant (pest control)
- Toxicity and safety
- Fumigation hazards
- Explosiveness
- In fiction
- See also
- Notes
- References
- Further reading
- External links
Phosphine (IUPAC name: phosphane) is a colorless, flammable, highly toxic compound with the chemical formula , classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane (). With traces of present, is spontaneously flammable in air (pyrophoric), burning with a luminous flame. Phosphine is a highly toxic respiratory poison, and is immediately dangerous to life or health at 50 ppm. Phosphine has a trigonal pyramidal structure.
Phosphines are compounds that include and the organophosphines, which are derived from by substituting one or more hydrogen atoms with organic groups. They have the general formula {{chem2|PH_{3−n}R_{n}|}}. Phosphanes are saturated phosphorus hydrides of the form {{chem2|P_{n}H_{n+2} }}, such as triphosphane. Phosphine () is the smallest of the phosphines and the smallest of the phosphanes.