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How does the use and storage of calcium hypochlorite prevent evaporation

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[Abstract]:
How does the use and storage of calcium hypochlorite prevent evaporation

Calcium hypochlorite is one of the main components of bleaching powder, which has bactericidal and oxidizing properties.

Similar properties are chlorine and sodium hypochlorite, but they are not as stable as calcium hypochlorite.

Calcium hypochlorite has little solubility in water.

Its stability is inversely proportional to the water content, and the decomposition reaction is strong exothermic, the products are calcium chloride and dichloride monoxide.

Calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and emits chlorine gas:

2Ca(ClO)2 + 2CO2 → 2CaCO3 + 2Cl2 + O2 

React with hydrochloric acid to form calcium chloride:

Ca(ClO)2 + 4 HCl → CaCl2 + 2 H2O + 2 Cl2 

Calcium hypochlorite hydrolytic ion equation :ClO-+H2O→HClO+OH-(reversible)

Operating precautions: Closed operation, enhanced ventilation.

Operators must be specially trained and strictly abide by the operating rules.

It is recommended that operators wear hood-type electric air supply filter dust respirator, adhesive protective clothing and neoprene gloves.

Keep away from fires and heat sources. Smoking is strictly prohibited in the workplace.

Keep away from flammable and combustible materials.

Avoid dust generation.

Avoid contact with reductants and acids.

Handle with care to prevent damage to packing and container.

No vibration, collision or friction.

Equipped with the appropriate variety and quantity of fire fighting equipment and leakage emergency treatment equipment.

Empty containers may retain harmful substances.

Storage Precautions: Store in a cool, ventilated warehouse.

Keep away from fire and heat.

The storage temperature shall not exceed 30℃, and the relative humidity shall not exceed 80%.

Packing must be sealed and not in contact with air.

Should be stored separately with reducing agent, acid, easy (can) combustion, etc., avoid mixing storage.

Do not store in large quantities or for a long time.

The storage area should be equipped with suitable materials for leakage.