2012年4月26日星期四

Useful Information of Calcium Chloride




Product name:Calcium Chloride
CAS:10043-52-4
Molecular Formula:CaCl2
Formula Weight:110.98
Description of Calcium Chloride:
Appearance:white powder hygroscopic
Odor:odorless
Density:2.15 g/cm3 (anhydrous)
Boiling point:1935 °C (anhydrous)
Solubility in water:74.5 g/100mL (20 °C);59.5 g/100 mL (0 °C)
Solubility:soluble in acetone, acetic acid
Calcium Chloride is used in concrete mixes to help speed up the initial setting, but chloride ions lead to corrosion of steel rebar, so it should not be used in reinforced concrete.[12] The anhydrous form of calcium chloride may also be used for this purpose and can provide a measure of the moisture in concrete.[13]
Calcium Chloride is used in swimming pool water as a pH buffer and to adjust the calcium hardness of the water.
Calcium Chloride is included 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 (clumping and adhesion of materials that prevent the furnace charge from descending), and in fabric softener as a thinner.
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