If sulphur is heated in a stream of phosphine, hydric sulphide and sulphur phosphide are the products.
According to Bullier, however, acetylene must contain 80 per cent of phosphine to render it spontaneously inflammable.
The difficulty with this explanation is that phosphine is not known as a decomposition product of organized matter.
As already stated, the highest proportion of phosphine yet found in acetylene is 2.3 per cent.
In the preparation of phosphine, why is coal gas passed into the flask?
If it is to be stored it must be carefully purified from phosphine, which is apt to cause sudden decomposition.
phosphine is a gas of unpleasant odor and is exceedingly poisonous.
These escape into the air and the spontaneous combustion of the phosphine ignites the marsh gas.
For the detection of phosphine, Berg's solution may be used.
Oxides of the metals, heated with phosphine, yield phosphides with formation of water.