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Two water calcium chloride and anhydrous calcium chloride

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Calcium chloride, anhydrous Calcium chloride.
Molecular formula: CaCl2.
English name: calcium chlorid andydrous, technical
Molecular weight: 110.99.
I. purpose:
Anhydrous calcium chloride has moisture absorption, dry organic solvent and various gases are good dehydrating agents. Two refrigerator and ice water calcium chloride is used for important refrigerant, construction on concrete hardening and increase the cold resistant ability, is good waterproofing agent, is one of the important raw materials, manufacturing molecular sieve as a demulsifier on wastewater treatment.
Ii. Appearance:
White, flake, globular, honeycomb, powdery, granular.
Iii. Quality indicators:

	The index name		Anhydrous calcium chloride		Dihydrate calcium chloride
The content of CaCl2 % p		95%-98%		75%-80%
Magnesium and alkali metal chloride content % is less than.		0.2		0.25
Water insoluble % less than or equal to.		0.1		0.2
Acidity (PH)		7.5-8.5		7.5-8.5
The alkalinity is less than or equal to [Ca(OH)2].		0.1		0.15

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