Chemical properties:
Appearance Property: colorless cubic crystal, white or gray, with granular, cellular [massive, spherical, irregular granular powder. Non-toxic, odorless, slightly bitter taste.
Relative Density: 2.15 (25 ℃)
Melting point: 782 ℃
Boiling point: 1600 ℃ to] on.
Solubility: soluble in water, and release a lot of heat, the solution was slightly alkaline. Soluble in alcohol, acetone, acetic acid. And the role of ammonia or ethanol, respectively, and generate CaCl28NH3 CaCl24C2H5OH complexes. The solution is precipitated crystalline hexahydrate at a low temperature, gradually heated to 30 ℃, then dissolved in a own crystal water, heating continued gradual water loss, when changed to 200 ℃ dihydrate and heated to 260 ℃ then becomes white porous anhydrous calcium chloride.
Also known as ice calcium. As colorless crystals. General merchandise is white, off-white or slightly yellow flakes or bulk solids, bitter and astringent. Density1.85g / cm3 (20 ° C). Soluble in water, soluble in alcohol, insoluble in ether. Their solution was neutral or slightly alkaline. Corrosive. Heated to 260 ℃ when dehydration becomes anhydrous. Deliquescent strong. Method Sodium carbonate from ammonia production base in the distillation waste (containing calcium chloride 100g / L), purified, clarified and evaporated after separation Sodium chloride, liquor clarification will continue to concentrate, when calcium chloride content of 70% cooling system. Hydrochloric acid and limestone powder can also be used in the reaction. As refrigerants, antifreeze, fire extinguishing agents, for melting ice and snow melting, manufacturing anhydrous calcium chloride, flame retardant cotton fabric, rubber production of condensate agent. Can accelerate hardening and increased tolerance to cold concrete construction mortar, but also used as anti-fogging agent port and road dust agent. From industrial grade Calcium chloride dihydrate saturated solution, bleaching agent is added, in addition to heavy metal agents, in addition to arsenic solution purification, filtration to remove impurities, liquid cooling and crystallization, solid-liquid separation, drying food grade product can be obtained. Used cans and soy coagulant, calcium supplements.