Industrial Preparation of raw materials: chlorine and lime
Preparation principles: 2Ca (OH) 2 +2 Cl2 = CaCl2 + Ca (ClO) 2 +2 H2O
Bleaching principle: the calcium hypochlorite into the water and placed on a period of time, calcium hypochlorite with water and carbon dioxide in the air reacts with the strong oxidation of hypochlorous acid.
Chemical equation: Ca (ClO) 2 +2 H2O +2 CO2 = Ca (HCO3) 2 +2 HClO
Molecular formula: Ca (ClO) 2, CaCl2 • Ca (OCl) 2 • 2H2O (often containing Ca (OH) 2, CaCl2, Ca (ClO2) 2, and Cl2 and other impurities.)
Storage Note: stored in a cool, ventilated warehouse. Away from fire and heat sources. Base temperature does not exceed 30 ℃, relative humidity less than 80%. Sealed packaging requirements, non-contact with air. Should be the reductant, acid, easy (can be) kept separate from burning materials, etc., should not have mixed storage. Should not be a large number of storage or Jiu-Cun. Storage areas should be equipped with appropriate materials asylum leakage.
Physical and Chemical Properties
Main components: Industrial grade chlorine content: a ≥ 32%; 2 ≥ 30%; 3 ≥ 28%.
Appearance and properties: white powder, have a strong chlorine smell. The solution is yellow-green semi-transparent liquid.
Melting point (℃): 100 (decomposition)
Relative density (water = 1): 2.35
Relative vapor density (air = 1): 6.9
Solubility: soluble in water.
Main use: used as a disinfectant, bactericide, bleaching agent.
Cut with material: strong reducing agent, strong acids, ammonia, flammable or combustible materials, water.
Avoid contact with conditions: the air.