heptahydrate zinc sulphate

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heptahydrate zinc sulphate
Posting date : Jun 21, 2010
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28-
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zinc sulphate heptahydrate used as fertiliazer ,feed addtive ect specifaction for zinc sulfate heptahydrate specifaction :quality standard synonyms:zinc vitriol molecular formula :znso4.7h2o molecular weight :287.55 cas NO.:7446-20-0 APPEARANCE :WHITE CRYSTALLINE POWER OR GRANULAR PURITY 98.5MIN ZN22.0%MIN WATER INSOLUBLES 0.1% MAX LGNITION RESIDUE 0.5% MAX MG 0.5% MAX CU 0.1%MAX FE 120PPM MAX CD 10PPM MAX AS 5PPM MAX PB 10PPM MAX .

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