sodium pyrosulfite

Product Description

sodium pyrosulfite Product name: sodium metabisulfite, also known as disulfide five oxygen acid CAS :********4 Physical properties: white or slightly yellow crystalline powder. The relative density of 1.4, soluble in water (*0 degrees centigrade when *4g/**0ml water; **0 degrees centigrade when *1.7g/**0ml water) solution was acidic, soluble in glycerine, slightly soluble in ethanol. Moisture and decompose easily, easily oxidized in air exposed home into a sodium sulfate, and acid contact with sulfur dioxide and generate the corresponding salts, heated to **0 degrees centigrade decomposition. Uses: The pharmaceutical industry for the production of chloroform, phenyl sulfone, and benzaldehyde. Rubber industry used as coagulant. Cotton printing and dyeing industry as a bleaching agent after the dechlorination, cotton scouring agent. Leather industry for leather processing, make leather soft, plump, tough, with a waterproof, bending, wear properties. The chemical industry for the production of hydroxy-vanillin, such as hydroxylamine hydrochloride. Sensitive industries such as contrast medium. The food industry as a bleaching agent, preservatives, osteoporosis agents, anti-oxidants, color protection agents and preservative. Packaging: External polypropylene woven bag lined with polyethylene plastic bag. *5 kg / bag *0 kg / bag ***0 kg / bag.