Sodium Metabisulfite

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Molecular Formula: Na2S2O5 Molecular Weight:190.10 CASNO.: 7681-57-4 Properties& Applications: White or light yellow crystal powder; It is easily soluble in the water and has strong deliquescence; Mordant of printing and dyeing; Dechloronat of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleaching agent of paper pulp, bamboo and timber; Bleaching agent of mineral-dressing of nonferrous. Packing&Storage: Packed in 25kg or 50kg plastic woven bags with polyethylene liner; Stored in dry and cool warehouse with packages sealed and away from rain and wetting. Quality Standard: HG/T 2826—1997 (Industry Grade) / GB 1893—86 (Food Grade) Item Index Industrial Grade Feed Grade Content(as Na2S2O2)%min 96 —————— Content(as SO2)%min 0.2 65 Iron (Fe)%max 0.002 0.005 Water insoluble matter% max 0.05 0.05 Arsenic(As)% max 0.001 0.002 Heavy metal(as PH)% max 0.001 0.002 PH Value ———— 4-6

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Hunan Chembird Indust Co.,Ltd

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