zinc sulfate

Description

㈠Tech-Grade Zinc sulfate Heptahydrate Molecular Formula: ZnSO4•7H2O Molecular Weight: **7.*6 PHYSICAL AND CHEMICAL PROPERTIES: White or slight-yellow crystal, loose and no agglomeration, easy soluble in water and slightly dissolvable in alcohol and glycerol., insoluble liquid ammonia and ketone. Tending to lose water molecules of hydration in dry air and become white powder appearance.When the temperature is **0℃, it will become no water substance and lose all the crystal water.When the temperature is above **0℃, it will decompose. Relatively density:1.**5 Melting point:**0℃ APPLICATIONS: It is mainly used as raw material for zinc salts, Zinc stearate, Zinc carbonate , Zinc Borate, Zinc Dimethyldithiocarbamate and lithopone and so ***** is used as a main subsidiary material for electrolyse pure zinc, electroplate industry, washing the mine of lead and zinc, zinc plating of wire and circulate cooling water treatment and so ***** is also used as antisepticise of wood, leather preservation, bone glue fine and preservation and dyestuff in printing and dyeing CHARACTERISTIC AND USAGE: 1 High purity , Strong disperse, Rapid dissolution and Rapid and Thorough chemistry react 2 Snow-white color, and the color of remainder after chemistry is not changed 3 Little impurity, High stability, resultant has little impact on the product PACKING AND TRANSPORTATION:Plastic woven bag lined witih plastic film bag.Standard Net Weight:*5kg, *0kg, *0kg.Avoid moisture during the transportation and storage. ITEM INDEX TYPE Premium Grade Grade Ⅰ Zn % Min *2.*1 *2.*8 ZnSO4.7H2O % Min *9 *8 Water insoluble % Max 0.*2 0.*5 Ph(*0g/L solution)%Min 3.0 3.0 Pb % Max 0.**1 0.**2 Cd % Max 0.**1 0.**2 Fe % Max 0.**3 0.**5 Mn % Max 0.**5 0.*0