Manufacturer / origin: Anhui product grade: content of industrial grade: 95 (%)
Appearance: powder CAS number: 1305-78-8
Calcium oxide calcium oxide, chemical formula CaO, molecular weight 56.08. The main components of the lime. White cube crystal powder. Density of 3.25 to 3.38 g / cm 3, melting point 2614 ℃, 2850 ℃ boiling point. The absorption of carbon dioxide to produce calcium carbonate in the air. Insoluble in water, with water combine to form calcium hydroxide. Soluble calcium salt acid to generate the corresponding with silica, calcium silicate formation of fusible at high temperature, with coke at high temperature reaction of calcium carbide CaC2 and carbon monoxide. Used in building construction, leather tanning, manufacturing of bleaching powder. Agriculture neutralized with lime soil acidity, soil colloid aggregation, increase aggregate structure. Also used for sugar, calcium carbide, papermaking, wastewater treatment. The calcination of limestone into lime kiln to more than 900 DEG C, can be made of lime.
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