漂白粉

漂白粉 Calcium hypochlorite Basic information Product Calcium hypochlorite Name: b-kpowder;calciumb11306hypochlorite;calciumchlorohydrochlorite;calciumchlorohypochloride ;calciumhypochlorite,hydratedmixture,withnotlessthan5.5%butnotmorethan10%water;calciumSynonyhypochloritemixture,dry,withmorethan10%butnotmorethan39%availablechlorine;calciumhypocms: hloritemixture,dry,withmorethan39%availablechlorine(8.8%availableoxygen);calciumoxychlori de CAS: 7778-54-3 MF: CaCl2O2 MW: 142.98 EINECS: 231-908-7 Product Industrial/Fine Chemicals;INORGANIC & ORGANIC CHEMICALS;Inorganic CategoriChemicals;Biocide;Hypochlorites;Oxidation;Synthetic Reagents;HypochloritesEssential es: Chemicals;Routine Reagents;Technical Grade Mol File: 7778-54-3.mol Calcium hypochlorite Chemical Properties 100 ?C(lit.) mp 2.35 g/mL at 25 ?C(lit.) density storage temp. Store at RT. Water Solubility 200 g/L (20 ºC) (dec.) Merck 14,1674 Stability Strong oxidizer - contact with flammable material may lead to fire. Stability: Incompatible with water, reducing agents, combustible material, phenol. CAS DataBase 7778-54-3(CAS DataBase Reference) Reference EPA Substance Hypochlorous acid, calcium salt(7778-54-3) Registry System Safety Information Hazard Codes O,C,N Risk Statements 8-22-31-34-50 Safety 26-36/37/39-45-61 Statements RIDADR UN 1748 5.1/PG 2 2 WGK Germany NH3485000 RTECS HazardClass 5.1 PackingGroup II Hazardous 7778-54-3(Hazardous Substances Data) Substances Data MSDS Information Calcium English hypochlorite SigmaAldrich English ACROS English ALFA English Calcium hypochlorite Usage And Synthesis Chemical white powder with a chlorine-like odour Properties Calcium hypochlorite, hydrated is a white granular solid or tablets compressed from the granules having an odor of chlorine. Calcium hypochlorite is noncombustible, but Calcium hypochlorite will accelerate the burning of combustible materials. Calcium hypochlorite is decomposed by water with evolution of chlorine gas and heat. Prolonged exposure to fire General or heat may result in the vigorous decomposition of the material and rupture of the Description container. Material containing less than 39% available chlorine may undergo reactions as described above though Calcium hypochlorite may take longer to initiate, and the resulting reactions may not be as vigorous. Calcium hypochlorite is used for water purification, disinfectant for swimming pools, for bleaching paper and textiles, and for many other uses. CALCIUM HYPOCHLORITE is a powerful oxidizing agent, particularly in the presence of water or at higher temperature as Calcium hypochlorite decomposes to release oxygen and chlorine gases. As strong oxidant Calcium hypochlorite may react with vigor in combination with carbon, especially finely divided is explosive; acetylene, leads to creation of explosive chloroacetylenes; organic matter, oil, hydrocarbons; alcohols may Reactivity cause explosion, methanol, ethanol, etc.; nitromethane caused delayed violent reaction; Profile organic sulfur compounds, sulfides tend toward ignition and sometimes explosion; with iron oxide in metal containers catalyze oxygen evolving decomposition of the oxidant. Calcium hypochlorite forms highly explosive NCl3 on contact with urea. Produces highly toxic gaseous chlorine gas when heated or on contact with acids [Sax, 9th ed., 1996, p. 1905]. Mixture of damp sulfur with hypochlorite caused a violent reaction, that ejected molten sulfur, Chem Eng. News, 1965, 46(29), 6. Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe Health Hazard injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution. These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Fire Hazard Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. Calcium hypochlorite Preparation Products And Raw materials Chloroform-->Potassium chlorate-->Calcium hydrogenphosphate dihydrate-->Magnesium chloride hexahydrate-->Lithopone-->Zinc sulfate heptahydrate-->5-CHLORO-4-METHOXYTHIOPHENE-3-CARBONYL Preparation CHLORIDE-->5-CHLORO-4-METHOXYTHIOPHENE-3-CARBOXYLIC Products ACID-->2-Cyclopentenone-->4-CHLORO-2-METHYLBENZALDEHYDE-->Cinnamic acid-->3,5-DICHLORO (1H)INDAZOLE-->Calcium chlorate dihydrate-->3-CHLORO-1H-INDAZOL-5-AMINE-->3-CHLORO-5-NITRO-1H-INDAZOLE--> BLEACHEDSTARCH-->PSEUDOIONONE-->DICHLORAMINE T Chlorine-->Calcium hydroxide-->Calcium oxide-->CARBON MONOXIDE-->Sodium Raw materials chlorate-->CALCIUM CARBONATE-->Cyclone separator