PH3 meaning in Electronics ?

Answer: What is Phosphine mean?

Phosphine (IUPAC name: phosphane) is a colourless, flammable, very toxic gas compound with the chemical formula PH3, classed as a pnictogen hydride. Pure phosphine is odourless, but technical grade samples have a highly unpleasant odour like rotting fish, due to the presence of substituted phosphine and diphosphane (P2H4). With traces of P2H4 present, PH3 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.

Phosphine is also the general name given to the class of organophosphorus compounds in which one or all of hydrogen atoms in PH3 been replaced with organic derivative, having a general formula PH3-nRn. Organophosphines are important in catalysts.

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