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七水硫酸锌

七水硫酸锌

产品描述/ Product Description

一、化学名:硫酸锌

二、分子式:ZnSO4·H2O, ZnSO4·7H2O

三、分子量:一水:179.44;七水:287.50

四、CAS:一水:7446-19-7;七水:7446-20-0

    五、性状无色透明棱柱体或小针状体,或粒状结晶性粉末,无臭,七水合物相对密度1.957,熔点100℃,易溶于水,水溶液对石蕊呈酸性。微溶于乙醇和甘油。一水合物于温度超过238℃时失水。七水合物于室温干燥空气中逐渐风化。

    六、用途:营养增补剂(锌强化剂)。加工助剂。可用于乳制品,婴幼儿食品,饮液及乳饮料,谷类及其制品,食盐,软饮料,可可粉及其他口味营养型固体饮料,孕产妇配方奶粉。

七、包装:内衬聚乙烯塑料袋,外套复合塑料编织袋包装,每袋净重25kg。

八、贮存与运输:本品应贮存在干燥通风清洁的库房中,装载运输时要轻装轻放,防止包装破损,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。

质量指标SpecificationGB25579-2010FCC VII
含量 w/% ZnSO4·H2OContent w/% ZnSO4·H2O99.0-100.598.0-100.5
ZnSO4·7H2OZnSO4·7H2O99.0-108.799.0-108.7
砷(As),w/%            ≤As ,w/%                  ≤0.0003————
碱金属和碱土金属盐,w/%    ≤Alkalis and Alkaline Earths,w% ≤0.500.5
酸度 Acidity,通过试验Pass Test
硒(Se), w/%                ≤Se, w/%                   ≤0.0030.003
汞(Hg), w/%               ≤Hg, w/%                   ≤0.00010.0005
铅(Pb),w/%                 ≤Pb, w/%                   ≤0.00040.0004
镉(Cd),w/%                ≤Cd, w/%                   ≤0.00020.0002

1、Chemical Name:  Zinc Sulfate

2、Molecular Formula : ZnSO4·H2O,  ZnSO4·7H2O

3、Molecular Weight: Monohydrate: 179.44; Heptahydrate: 287.50

4、CAS: Monohydrate:7446-19-7; Heptahydrate:7446-20-0

5、Character: It is colorless transparent prism or spicule or granular crystalline powder, odorless. Heptahydrate:The relative density is 1.957. Melting point is 100℃. It’s easily soluble in water and aqueous solution is acidic to litmus. It’s slightly soluble in ethanol and glycerin. The monohydrate will loses water at temperatures above 238℃; The Heptahydrate will be effloresced slowly in the dry air at room temperature.

   6、Usage: It is used as nutritional supplement(zinc fortifier) and processing aid. It’s used in milk product, infant food, liquid and milk drinks, grain and its’ products, table salt, soft drinks, maternal formula and coco powder and other flavor nutritional solid drinks.

   7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as 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 from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.

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