食品級七水硫酸鋅

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ZINC SULFATE 食品級七水硫酸鋅
一、化學名：硫酸鋅
二、分子式：ZnSO4.H2O,  ZnSO4.7H2O
三、分子量：179.49(一水），287.58（七水）
四、CAS：7446-19-7（一水）；7446-20-0（七水）
五、性能：無色晶體,小針狀或粒狀晶形粉末,無臭,在空氣中會風化。溶液對石蕊呈酸性比重1.957(25/4℃),熔點100℃在280℃失去7H2O,溶于水及甘油,不溶于酒精,毒性底。
六、用途：食品補充劑,動物飼料,媒染劑,木材防腐劑,分析試劑。
七、包裝：內襯聚乙烯塑料袋，外套塑料編織袋，每袋25Kg。
八、貯存與運輸：應貯在干燥，通風清潔的庫房中，輕裝輕放，防止受潮、受熱，運輸過程中防止雨淋受潮，應與有毒物品隔離堆放。
質量指標 Specification GB25579-2010 FCC,1996
含量 w/%   ZnSO4.H2O Content ZnSO4.H2O 99.0-100.5 98.0-100.5
 ZnSO4.7H2O  ZnSO4.7H2O 99.0-108.7 99.0-108.7
砷(As), mg/kg          ≤ As 0.0003 ——
堿金屬和堿土金屬鹽 w/% ≤ Alkali metal 0.50 0.5
酸度 PH 通過試驗 正常
硒(Se), mg/kg          ≤ Se 0.003 0.003
汞(Hg), mg/kg          ≤ Hg 0.0001 0.0005
鉛(Pb), mg/kg           ≤ Pb 0.0004 0.001
鎘(Cd), mg/kg           ≤ Cd 0.0002 0.0005

1、Chemical Name:  Zinc sulfate
2、Molecular Formula : ZnSO4.H2O,  ZnSO4.7H2O
3、Molecular Weight: 179.48(Monohydrate), 287.54(Heptahydrate)
4、CAS: 7446-19-7（H2O）；7446-20-0 (7H2O)
5、Character: It is colorless or white crystalline powder, odorlessness. Efflorescence in air. Acid hydrometer is 1.957(25/4℃) to litmus. Melting point is 100℃. It’s soluble in water and glycerol, insoluble in ethanol and light toxicity, lose crystal water in 280℃.
6、Usage: It is used as food additives, animal feed, printing and dyeing, timber preservative.Used as analytical reagent.
7、Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.

 

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