A mass of common pyrites (bisulphide of iron) weighing only 12 lbs.
The opium should be first treated with bisulphide of carbon or benzine.
There are many remedies recommended, but the best one lies in the use of bisulphide of carbon.
The addition of bisulphide of carbon makes the mixture heavier.
The basis of these is said to be aurum musivum, or bisulphide of tin.
Now, when wool moist with bisulphide is heated, it invariably turns yellow.
For the radiation from carbonic acid, the same layer of bisulphide transmits only 25 per cent., 75 per cent.
Of the radiation from hydrogen, a thin layer of bisulphide transmits 90 per cent., absorbing only 10.
Dissolve the gutta percha in the bisulphide of carbon, the asphalte and amber in the oil, and mix well.
To render it absolutely free from unaltered phosphorus, it may be washed with bisulphide of carbon.
bisulfide bi·sul·fide (bī-sŭl'fīd')