Atomistry » Thorium » Chemical Properties » Thorium Sulphide
Atomistry »
  Thorium »
    Chemical Properties »
      Thorium Sulphide »

Thorium Sulphide, ThS2

Thorium Sulphide, ThS2, and Oxysulphide, ThOS. - Berzelius obtained a yellow powder and Nilson a black substance by heating thorium in sulphur vapour. Chydenius heated thoria to a high temperature in a stream of hydrogen containing carbon disulphide vapour, and obtained a black product having a density of 8.29. Kruss obtained a brown product, probably the oxysulphide, by the action of hydrogen sulphide on thorium halides; and Hauser prepared the same substance by heating carefully dried thorium sulphate to low redness in a current of hydrogen sulphide. Lastly, Duboin heated a mixture of thorium chloride with excess of sodium or potassium chloride in a porcelain boat contained in a tube through which a current of dry hydrogen sulphide was passed. The product, after washing out the alkali chloride, contained brown lamellae of thorium sulphide, ThS2, having a density of 6.7. After the removal of these lamellae by sifting, the siftings were treated with nitric acid at 40° C., which dissolved the remaining ThS2 and left the oxysulphide ThOS in the form of yellow crystals; these are only very slowly acted on by nitric acid, and have a density of 8.42.

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
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy