|
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 articlesZn in 8PFCZn in 8SF0 Zn in 8SOJ Zn in 8SOK Zn in 8SYI Zn in 8SLG Zn in 8SEX Zn in 8SEZ Zn in 8SJG Zn in 8SEY |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |