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硫酸锌 Zinc sulfate
一、化学名：硫酸锌
二、分子式：ZnSO4·7H2O
三、分子量：161.44
四、CAS：7446-19-7（一水）；7446-20-0（七水）；7733-02-0（无水）
五、性能：无色晶体,小针状或粒状晶形粉未,无臭,在空气中会风化。溶液对石蕊呈酸性比重1.957(25/4℃),熔点100℃在280℃失去7H2O,溶于水及甘油,不溶于酒精,毒性底。
六、用途：食品补充剂,动物饲料,媒染剂,木材防腐剂,分析试剂。
七、包装：内衬聚乙烯塑料袋，外套塑料编织袋，每袋25Kg。
八、贮存与运输：应贮在干燥，通风清洁的库房中，轻装轻放，防止受潮、受热，运输过程中防止雨淋受潮，应与有毒物品隔离堆放。
质量指标 | Specification | GB25579-2010 | FCC, 1996 |
色泽 | Colour | 无色或白色 | ----- |
含量% | ZnSO4.H2O | Content | ZnSO4.H2O | 99.0-100.5 | 98.0-100.5 |
ZnSO4.H2O | ZnSO4.7H2O | 99.0-108.7 | 99.0-108.7 |
砷 ≤% | As | 0.0003 | ----- |
碱金属 ≤% | Alkali metal | 0.5 | 0.5 |
酸度 | PH | 通过试验 | 正常 |
硒 ≤% | Se | 0.003 | 0.003 |
汞 ≤% | Hg | 0.0001 | 0.0005 |
铅 ≤% | Pb | 0.0004 | 0.001 |
镉 ≤% | Cd | 0.0002 | 0.0005 |
1、Chemical Name: Zinc sulfate
2、Molecular Formula :ZnSO4
3、Molecular Weight:161.44
4、CAS:7446-19-7（H2O）；7446-20-0（7H2O）；7733-02-0（anhydrous）
5、Character:It iscolorless or white crystalline powder, odourlessness. 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 harmfulless, 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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