4(P0 3 +3HO)= 3P0 6 +PH 3.

This gas may be set on fire.

It is changed into the spontaneously inflammable kind, by nitric oxide, or nitrous acid gas.

The spontaneous inflammability of phosphu- retted hydrogen, arises from the presence of a highly volatile fluid (PH 2 ).

328 CHLORINE: symb Cl ; equiv.