Sodium Hydrosulfite By Tianjin Boliruite Chemicals Co., Ltd.

1. Chemical Name : Sodium Hydrosulfite 2. Cas no.:7775-14-6 3. White crystalline powder 4. 90.5% ,88.5% ,85.5% min 5. 50kgs per drum Features of sodium hydrosulfite : 1) Used as reducer, dyes auxiliary of dyeing industry, synthetic dyes and intermediates. (2) Used as bleaching agent of paper pulp in paper-making industry. (3) Used as bleaching agent of china clay in the ceramics industry. (4) Used as deoxidizer of rubber and styrene butadiene rubber synthesis, developer in photo-taking industry. (5) Used as reducing agent, bleaching agent in the industries including pharmacy, food, metallurgy and leather No. Index name Index Note 90%specification 88%specification 85%specification 1 Appearance White crystalline powder White crystalline powder White crystalline powder Eye measurement 2 Hydros content % a Y 90.5 88.5 85.5 Compulsory test 3 Content of insoluble substance in water % a 0.1 0.1 0.2 Spot test 4 Content of sodium carbonate %a Y 1 1 1 Spot test 5 Granularity A, B A, B, C A, B, C, D Compulsory test ( Eye measurement ) 6 Odor Gentleness Gentleness Gentleness Compulsory test