юридически?услуги
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юридически?услуги
Chemical Information Overview  |  Chemical Product  |  Chemical Raw Material  |  Chemical Company
USG Terra Alba No. 1
Gypsum
Gypsum (Calcium Sulfate Dihydrate, CaSO4 Ў¤ 2H2O)
13397-24-5
Dihydrate form of calcium sulfate
Neutral pH
Made from high purity white gypsum containing about 20% water of crystallization
Water of crystallization (combined water) starts being released as it is heated above ~50'C.
75% of water is released as Terra Alba reaches 180'C
Water not totally removed until temperatures exceed 400'C
Appearance and Odor: Off white to white powder: low odor
Melting Point: 1450'C - decomposes
Specific Gravity: 2.32 - 2.96
Solubility in Water: 0.26%
Industrial field others
United States Gypsum Co
Phone 888.874.2450
Fax 888.874.2348
Homepage www.usg.com
E-mail samplit@usg.com
Address 125 South Franklin Chicago, IL 60606-4678
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