diphosphine: A yellowliquid, P2H4, which is spontaneouslyflammable in air. It isobtained by hydrolysis of calciumphosphide. Many of the references tothe spontaneous flammability ofphosphine (PH3) are in fact due totraces ofP2H4 as impurities.
A yellow liquid that can be condensed
out from phosphine in a freezing
mixture. It ignites spontaneously in air.
ChEBI: The simplest of the diphosphanes, consisting of two covelently linked phosphorus atoms each carrying two hydrogens.
