Sell sodium hydrosulfite

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sodium hydrosulfite (Na2S2O4,7775-14-6) .
Appearance:Free-flowing white crystalline powder; Purity available:85%, 88%, 90%; Solution appearance:Clear; Water insolubles:0.05%max.
It has almost the same application with Thiourea dioxide: applied in the textile industry for vat yeing, reduction cleaning, printing and stripping, textile materials bleaching. It is also used in bleaching paper pulps, especially mechanical pulp; Bleaching kaolin clay and foodstuffs. As a reducing agent, it is used in organic ynthesizing.