Originally posted by Schockwave
I used to have a big interest in pyrophoric substances or mixtures and there are quite a few of them, white phosphorus is one of them and the best
known such compound. Though some other ones would be organic metallo compounds like diethylzinc Zn(C2H5)2 (see Org.Synth.) or diethylcadmium, an
aluminium alkyl like trimethylaluminium (Al2(CH3)6), all of which are liquids. Some alkyl alkali compounds like methyllithium, methylpotassium, or
organic alkali alkylamides like Na, K, or Li diethylamide (prepn. in US6576796).
And some inorganic metallic compounds like TiCl2, TiCl3, PbP5, MgH2, MnS, CoN, BCo2, Fe(OC)5, some amalgams like Al-Hg, or finely divided metals like
Co, Pd, Mn, Ni, etc. are said to be pyrophoric, mixtures (PbCrO4 and S), etc. Gaseous compounds like diborane (B2H6), silane (SiH4), dichlorosilane
(SiH2Cl2), phosphine (PH3, pyrophoric in higher concentrations) or arsine (AsH3), here silane is the least toxic. |