Calcium chloride Fused anhydrous double fused

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Calcium Chloride
CAS No.:
Other Names:
Calcium Chloride hard Fused anhydrous double fused
Indian china
10043-52-4 ,
Place of Origin:
Madhya Pradesh, India
Grade Standard:
Food Grade, Industrial Grade, Medicine Grade, Reagent Grade, Other
70-72%, 80-85%, 94-98%,
White solid lumps or powder
Uses in industry Uses in food Uses in drugs
Supply Ability
Supply Ability:
20000 Kilogram/Kilograms per Week
Packaging & Delivery
Packaging Details
50/25 Kgs HDPE bagsm with plastic cover inside
Lead Time :
Within 15-30 Days


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Calcium chloride

Calcium (II) chloride,

Calcium dichloride,




CAS number

10043-52-4 ,

22691-02-7 (monohydrate)

10035-04-8 (dihydrate)

25094-02-4 (tetrahydrate)

7774-34-7 (hexahydrate)





EC number



RTECS number





Molecular formula           : CaCl2

Molar mass

 110.98 g/mol (anhydrous)

 128.999 g/mol (monohydrate)

147.014 g/mol (dihydrate)

183.045 g/mol (tetrahydrate)

219.08 g/mol (hexahydrate)

Appearance                     : White solid


2.15 g/cm3 (anhydrous)

1.835 g/cm3 (dihydrate)

1.83 g/cm3 (tetrahydrate)

1.71 g/cm3 (hexahydrate)

Melting point

772 °C (anhydrous)

260 °C (monohydrate)

176 °C (dihydrate) 45.5 °C (tetrahydrate)

30 °C (hexahydrate) [1]

Boiling point                          : 1935 °C (anhydrous)

Solubility in water                

74.5 g/100mL (20 °C)

59.5 g/100 mL (0 °C)

Solubility in alcohol             : soluble

Acidity (pKa)                         : 8-9 (anhydrous)

                                                 6.5-8.0 (hexahydrate)

 Structure                             :  Crystal structure Orthorhombic (deformed rutile), oP6

Space group                        : Pnnm, No. 58

Coordination: geometry  : octahedral, 6-coordinate




External MSDS

EU Index              017-013-00-2

EU classification Irritant (Xi)

R-phrases R36

S-phrases (S2), S22, S24

NFPA 704




LD50                                            : 1000 mg/kg (oral, rat)


Related compounds

Other anions

calcium fluoride

calcium bromide

calcium iodide


Other cautions

Beryllium chloride

Magnesium chloride

Strontium chloride

Barium chloride

Radium chloride


Supplementary data page


Structure and properties  n, εr, etc.

Thermodynamic data Phase behavior Solid, liquid, gas

Spectral data UV, IR, NMR, MS

Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)


Info box references


Calcium chloride, CaCl2, is a salt and the compound of calcium and chlorine. It behaves as a typical ionic halide, and is solid at room temperature. It has several common applications such as brine for refrigeration plants, ice and dust control on roads, and in concrete. The anhydrous salt is also widely used as a desiccant, where it will adsorb so much water that it will eventually dissolve in its own crystal lattice water. It can be produced directly from limestone, but large amounts are also produced as a by-product of the Solvay process. Because of its hygroscopic nature, the anhydrous form must be kept in tightly-sealed containers. It is used to turn kelp into a solid.


Chemical properties


Calcium chloride can serve as a source of calcium ions in a solution; unlike many other calcium compounds, which are insoluble, calcium chloride is able to dissociate.

3 CaCl2 + 2 K3PO4 (aq) → Ca3(PO4)2 (s) + 6 KCl (aq)

Molten CaCl2 can be electrolysed to give calcium metal and chlorine gas:

CaCl2 (l) → Ca (s) + Cl2 (gas)


Uses in industry


Because the anhydrous salt is strongly hygroscopic, air or other gases may be channeled through a column of calcium chloride to remove moisture.  It is converted to a brine as it adsorbs the water or water vapor from the substance to be dried:

CaCl2 + 2 H2O → CaCl2•2H2O



In swimming pools, Calcium Chloride is commonly used to increase the amount of Calcium dissolved in the swimming pool's water - also known as "Calcium Hardness." Properly maintained levels of dissolved calcium in swimming pools is an important aspect of swimming pool maintenance, particularly for concrete pools. Increasing levels of Calcium when Calcium levels are low, slows erosion of concrete, plaster, and similar surfaces.


Other industrial applications include use as an additive in plastics and in fire extinguishers, in wastewater treatment as a drainage aid, in blast furnaces as an additive to control scaffolding and in fabric softener as a thinner.


Uses in food


As an ingredient, it is listed as a permitted food additive in the European Union for use as a sequestrant and firming agent with the E number E509, and considered as generally recognized as safe (GRAS) by the U.S. Food and Drug Administration.


Calcium chloride is commonly used as an electrolyte and has an extremely salty taste, as found in sports drinks and other beverages such as Smart water and Nestle bottled water.yeast function during fermentation.


Uses in drugs


Calcium chloride can be injected as intravenous therapy for the treatment of hypocalcaemia (low serum calcium). It can be used for insect bites or stings (such as Black Widow Spider bites); sensitivity reactions, particularly when characterized by urticaria (hives); magnesium intoxication; as an aid in management of the acute symptoms in lead colic; in cardiac resuscitation, particularly after open heart surgery. Parenteral calcium can be used when epinephrine has failed to improve weak or ineffective myocardial contractions.

Aquarium use


It can also be used in the reef aquarium hobby for adding bio-available calcium in solution for calcium-using animals such as snails, hard tube worms, and corals.

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