Description
Calcium Hypochlorite (Sodium Process): Calcium Hypochlorite (Sodium Process) Formula: Ca(clo)2 Appearance: white or slight gray granular, powder, tablet Usage: For bleaching purpose of wood pulp, silk, cloth and fibre. Disinfection and water-treatment. Disinfectant for chemical poisonous and radioactive substance. Packing: Plastic bag lined II type plastic drum, net wt 25kg/40kg/50kg; or in small package, net wt 1kg/2kg/4kg/10kg. There are sign of "oxidant" on the drum Quality Standard: Quality standard ItemTablet Top-grade First grade Qualified product Available Chlorine % 70.0 67.0 65.0 Granularity (14-50mesh) % 90 87 87 Moisture % 5.5 10 More information for calcium hypochlorite as the following: Calcium hypochlorite Calcium hypochlorite Identifiers CAS number 7778-54-3 Properties Molecular formula Ca(ClO) 2 Molar mass 142.98 g/mol Melting point Decomposes at 100°C Solubility in other solvents 21 g/100 ml (25°C) Calcium hypochlorite is a chemical compound with formula Ca ( Cl O ) 2 . It is widely used for water treatment and as a bleaching agent (bleaching powder). This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach). Preparation It is manufactured using the calcium process or the sodium process. Calcium Process 2 Ca(OH) 2 + 2 Cl 2 → Ca(ClO) 2 + CaCl 2 + 2 H 2 O Sodium Process 2 Ca(OH) 2 + 3 Cl 2 + 2 NaOH → Ca(ClO) 2 + CaCl 2 + 2 H 2 O + 2 NaCl Bleaching powder is actually a mixture of calcium hypochlorite Ca(ClO) 2 and the basic chloride CaCl 2 , Ca(OH) 2 , H 2 O with some slaked lime, Ca(OH) 2 . Properties It is a yellow white solid which has a strong smell of chlorine . Calcium hypochlorite is not highly soluble in water. For that reason it should preferably be used in soft to middle hard water. There are two types of calcium hypochlorite - a dry form and a hydrated form. The hydrated form is safer to handle. Calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and release chlorine : 2Ca(ClO) 2 + 2CO 2 → 2CaCO 3 + 2Cl 2 + O 2 Calcium hypochlorite reacts with hydrochloric acid to form calcium chloride : Ca(ClO) 2 + 4 HCl → CaCl 2 + 2 H 2 O + 2 Cl 2 Extreme care should be used in handling this product. Always keep in a cool dry place away from any organic material. When mixing it with water, it is safest to add the calcium hypochlorite to water. This material has been known to undergo self heating and rapid decomposition accompanied by the release of toxic chlorine gas. Uses Calcium hypochlorite is used for the disinfection of drinking water or swimming pool water. For use in outdoor swimming pools, calcium hypochlorite can be used as a sanitizer in combination with a cyanuric acid stabilizer. The stabilizer will reduce the loss of chlorine because of UV radiation. Calcium does make the water 'hard' and tends to clog up some filt