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Sodium Hydrosulfite SPECIFICATION: Purity: 88% min, Na2CO3 : 1.0-2.5%, Na2S2O3 : 1.5% max, Na2S2O5: 3.5-7%, Na2SO3 : 0.6% max, Fe : 18ppm max, Water Insolubles:0.1% max, Other heavy metals(as Pb):0.0001% max. USAGE: Used in Dyeing, paper, food bleaching agent, bleaching earth, chemical industry and pharmaceutical intermediates. PACKING: IN 50KG IRON DRUM. Shijiazhuang Yuanchem Imp.& Exp. Corp. Ltd. Telephone : +86-311-87796645 Mobile Phone : +86-13703398740 Fax : +86-311-87735088 E-mail : chengyuan@yuanchem.com URL : www.yuanchem.com         www.yuanchem.cn Street Address : Room 606, Zhongyuan Building, No. 368, Youyi North Street, Shijiazhuang, Hebei, China. Zip : 050071 Copyright(C)2010,Shijiazhuang Yuanchem Imp.& Exp. Corp. Ltd. All Rights Reserved.  Supported by ChemNet ChinaChemNet Toocle Copyright Notice