二水硫酸钙

Used as portland-cement retarder, tile and plaster. It is a source of sulfur and sulfuric acid. Also used in polishing powder and paints, dyeing and calico printing. It is likewise employed in zinc metallurgy. It is employed in drying industrial gases, solids and many organic liquids. In granulated form it is used as soil conditioner. Used for food additives in the soy manufacturing industry.

It is hygroscopic in nature. It is non-combustible. Stable under normal temperatures and pressures. On decomposition gives oxides of sulfur and calcium oxide.

MFCD00149625

231-900-3

CaSO₄?2H₂O

172.17 (136.14anhy)

128° -1.5H{2}O

163° -2H{2}O

2.32

Hygroscopic. Ambient temperatures.

Powder

Soluble in water.

14,1706

Maximum level of impurities: Insoluble in dilute hydrochloric acid 0.02%, Cl 0.005%, NO₃ P.T. (limit about 0.005%), CO₃ P.T., Heavy Metals (as Pb) 0.002%, Fe 0.001%, Mg 0.02%, K 0.005%, Na 0.02%, Sr 0.05%

EW4150000

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