Nanjing Masterkey Chemical Co., Ltd.

Calcium Sulfate Dihydrate

• Category :

  Intermediates

• Synonyms :

  C.I. 77231;C.I.Pigment White 25;Plaster Stone;Calcium sulphate dihydrate;calcium sulfate hydrate (1:1:2);

• CAS NO :

  10101-41-4

• EC NO :

• Molecular Formula :

  H₄CaO₆S

• Molecular Weight :

  172.1712

• Main Specifications :

• InChI :

  InChI=1/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2

• Product description :

  Selenite

  Natural gypsum is a kind of sulfate mineral with main ingredient of calcium sulphate dehydrate (CaSO4•2H2O).Selenite is a kind of crystal state gypsum.

  Index

  ProductNatural calcium sulphate dehydrateNatural calcium sulphate dihydrate

  Appearanceraw ore powder

  Color and luster Whitewhite

  Calcium sulfate (CaSO4)

  mass fraction (in dry basis) /%99.399.3

  Lead (Pb) mass fraction/%<0.0001<0.0001

  Mercury (Hg) mass fraction/%<0.0001<0.0001

  Arsenic (As) mass fraction/%<0.0001<0.0001

  Chrome (Cr) mass fraction/%<0.0001<0.0001

  Cadmium (Cd) mass fraction/%<0.0001<0.0001

  Selenium (Se) mass fraction/%<0.0001<0.0001

  Loss on drying mass fraction/%19.5~20.5819.5~20.58

  Fluoride (in F)

  mass fraction/%<0.0001<0.0001

  ApplicationFood additive, medical material, medical auxiliary material, cosmetics additive, high purity chemical reagent, waterbased modifier, natural soil nutritional additives, fine ceramics manufacturing, high precision optics lapping compound, precise instrument casting, 3D printing medium, other functional material

• Molecular Structure :