Atomistry » Silicon » Chemical Properties » Silicon Disulphide
Atomistry »
  Silicon »
    Chemical Properties »
      Silicon Disulphide »

Silicon Disulphide, SiS2

Silicon Disulphide, SiS2, can be prepared by passing the vapour of carbon disulphide over a heated mixture of silica and carbon, but is best obtained by heating to a red heat an intimate mixture of amorphous silicon with three times its weight of powdered sulphur, and subliming the product under reduced pressure. It is also formed by the dry distillation of the thiochloride:

2SiSCl2 = SiS2 + SiCl4,

and by adding lithium silicide to molten sulphur.

Silicon disulphide forms white silky needles, which may be sublimed in an inert atmosphere, but which burn to silica and sulphur dioxide when heated in air. Moisture decomposes this compound, forming silica and hydrogen sulphide; chlorine forms chlorides of sulphur and silicon; fused sodium sulphide yields sodium thiosilicate, Na2SiS3, so that silicon disulphide, SiS2, is thiosilicic anhydride.

Last articles

Tb in 6TVY
Si in 6Y7O
Rh in 6WRM
Rh in 6WRL
Ni in 6Y8Z
Ni in 6Y8Y
Na in 6ZXZ
Na in 7ACG
Na in 6YLS
Na in 6Y8Z
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy