Atomistry » Zinc » Chemical Properties » Zinc Thiophosphates
Atomistry »
  Zinc »
    Chemical Properties »
      Zinc Thiophosphates »

Zinc Thiophosphates

Zinc thio-orthophosphate, Zn3(PS4)2, is obtained by heating zinc chloride and phosphorus pentasulphide together. It is a white crystalline powder that, when heated in the absence of air, decomposes into phosphoric and zinc sulphides. It can be purified by dilute hydrochloric acid but dissolves in the concentrated acid.

Pale yellow crystalline masses mixed with phosphorus pentasulphide are obtained by heating zinc, phosphorus, and sulphur together. Zinc thiohypophosphate, Zn2P2S6, was obtained in transparent yellow plates, apparently hexagonal, of density 2.2, by heating the above mixture in sealed tubes imbedded in iron tubes filled with sand.

Though it is insoluble it slowly decomposes in water or moisture with the evolution of hydrogen sulphide. Nitric acid attacks it violently, but hydrochloric acid has no action.

Zinc thiopyrophosphate has been prepared in small crystalline needles, rapidly decomposed by water or moist air, by a similar method. The crystals are clear yellow, and are attacked violently by cold nitric acid.

Last articles

Zn in 7VD8
Zn in 7V1R
Zn in 7V1Q
Zn in 7VPF
Zn in 7T85
Zn in 7T5F
Zn in 7NF9
Zn in 7M4M
Zn in 7M4O
Zn in 7M4N
© Copyright 2008-2020 by
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy