Atomistry » Calcium » Chemical Properties » Calcium Selenate
Atomistry »
  Calcium »
    Chemical Properties »
      Calcium Selenate »

Calcium Selenate, CaSeO4

Calcium Selenate, CaSeO4, can be obtained as transparent or milk-white rhombic prisms, showing double refraction, by fusion of an alkali. selenate with sodium and calcium chlorides. It can only be fused with difficulty in the blow-pipe, and it is slowly attacked by hydrochloric acid with evolution of chlorine. The density is 2.93 and the hardness 3.5.

The dihydrate, CaSeO4.2H2O, in monoclinic crystals isomorphous with gypsum, is obtained by mixing solutions of potassium selenate and calcium nitrate and boiling, when the crystals, being less soluble in hot water than in cold, are deposited. When dehydrated by heat and treated with water, it sets like plaster. The density is 2.676.

Last articles

Ca in 3AVT
Ca in 3AUJ
Ca in 3AVU
Ca in 3AUK
Ca in 3AU2
Ca in 3AUA
Ca in 3AU9
Ca in 3ATJ
Ca in 3ATT
Ca in 3ATS
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy