Atomistry » Lead » Chemical Properties » Lead Polysulphide
Atomistry »
  Lead »
    Chemical Properties »
      Lead Polysulphide »

Lead Polysulphide

A purple-red polysulphide of lead, having the composition PbS5, is formed when a solution of calcium polysulphide is added in excess to a dilute solution of lead nitrate cooled to 0° C.; above 10° C. this compound decomposes into lead monosulphide and free sulphur.

It was observed by Hofmann and Wolfl that when lead halides dissolved in dilute sodium thiosulphate solution are exposed to light precipitates are formed which are not lead sulphide, this alone being formed from the solutions in diffused light or in the dark. In the case of the chloride a red precipitate of Pb4S6Cl2 is formed, whereas from the iodide Pb3S4I2 separates as a copper-red powder. The latter compound is also formed by the action of yellow ammonium sulphide solution on lead iodide.

Last articles

Zn in 8WB0
Zn in 8WAX
Zn in 8WAU
Zn in 8WAZ
Zn in 8WAY
Zn in 8WAV
Zn in 8WAW
Zn in 8WAT
Zn in 8W7M
Zn in 8WD3
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy