Gypsum is used as a coagulant in the production of cans and soy products, and the dosage is added as required for normal production.
Gypsum belongs to the monoclinic crystal system, with a high degree of cleavage and easy to split into thin slices. Heat gypsum to 100 ~ 200 ° C, lose part of the crystal water, can get hemihydrate gypsum. It is a gas-hardening gelling material with two forms of α and β, both of which are diamond-shaped crystals, but their physical properties are different. α-type hemihydrate gypsum crystallizes well and solid; β-type hemihydrate gypsum is flaky and cracked crystal, the crystal is very fine, and the specific surface area is much larger than that of α-type hemihydrate gypsum.
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