Chinese name: calcium chloride dihydrate

CAS no. : 10035-04-8

Molecular formula: CaC12.2H20

Molecular weight: 147.02

Appearance: Grey and white flake

Content: 74% to 77% or higher

Alkalinity :(Ca(OH)2)%≤0.20

Iron (Fe) %≤0.006

Sulfate (in CaSO4)%≤0.05

PH: 7.5-11

Physical and chemical properties: colorless cubic crystal. General goods for white or white porous or granular, honeycomb. Odorless, slightly bitter taste. Relative density 2.15 (25℃). Melting point is 782 ℃. Boiling point above 1600℃. It is highly hygroscopic and easily delirious when exposed to air. It is soluble in water and emits a lot of heat. Its aqueous solution is slightly acidic. Soluble in alcohol, acetic acid and acetic acid. Acting with ammonia or ethanol, CaCl2·8NH3 and CaCl2·4C2H5OH complexes are generated, respectively. At room temperature, hexahydrate is usually precipitated from the crystallization of aqueous solution. When heated to 30℃ gradually, it dissolves in its own crystalline water. After further heating, it gradually loses water and becomes dihydrate when heated to 200℃.

1. Mainly used for snow removal in winter on roads, parking lots, airports, golf courses, etc.

2. Petroleum drilling and petrochemical dehydration fluids;

3. Dust removal in coal yard and mine;

4. Cement early strength agent, improve concrete strength, coating coagulant;

5. Desiccant for moisture proof;

6. Drying medium of gas and liquid in the process;

7. Latex coagulants in the rubber industry;

8. Chemical agents and additives for metallurgical industry;

9. Additives for paper industry and deinking of waste paper;

10. Inorganic chemical raw materials and root remover, coagulant of sodium alginate;

11. Steel works used as sinter;

12. Used as refrigerant in refrigeration industry;

13. Used for bleaching plastics in the plastic industry;

14. Widely used in dye and printing and dyeing industry