English name: calcium oxide
Other Name: lime
Chemical Formula: CaO
Molecular formula: CaO
Nature
Appearance: white amorphous powder, containing impurities.
When gray or pale yellow, hygroscopic
Molecular Weight: 56.08
Boiling point: 2850 ℃
Melting Point: 2580 ℃
Solubility: insoluble in water, soluble in alcohol, soluble in acid, glycerol
Density: relative density (water = 1) 3.25 ~ 3.38g/cm3
Stability: Stable
Hazard markers: 20 (alkaline corrosive substances)
The main purpose
Main use: used in construction, and for the manufacture of calcium carbide, caustic soda, bleaching powder (made from: chlorine gas pass into the milk of lime 2Cl2 2Ca (OH) 2 = Ca (ClO) 2 CaCl2 2H2O) and gypsum. Laboratory for ammonia and other drying and alcohol dehydration.
Uses: calcium oxide used in the steel, pesticides, pharmaceuticals, non-ferrous metals, fertilizers, leather, hydrogen, calcium oxide, lab