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Name:Shijiazhuang Longcheng Chemicals Co., Ltd
Type:Others
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Products detail
Product Name: | Sodium Metabisulfite | |
CAS No: | ||
Product Type: | Inorganic Chemicals -> Inorganic salts | |
Product spec: | -- | |
Packing: | 25kg/50kg pp bags, 25MT per 20''FCL | |
Post Time: | 2010-07-22 | |
Usage: | ||
Description: | Sodium metabisulfite Physical property: White or yellowish crystalline powder, wet the relative density of 1.4. Soluble in water glycerol, slightly soluble in ethanol. Damp easy to decompose, exposed to air easily oxidized into sulfate. Access to emit sulfur dioxide and acid generated the corresponding salts. Heated to 150 degrees decomposition. USE: 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. specifications Tech Grade Food Grade Sodium Metabisulphite (As SO2), % ≥ 64 64 Fe , % ≤ 0.005 0.005 Water-insoluble Matter, % ≤ 0.05 0.05 PH 4.0-4.6 4.0-4.6 Pb, % ≤ --- 0.002 As,% ≤ --- 0.0002 |