硫酸锌、性能:无色晶体,小针状或粒状晶形粉末,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。
苹果公司今天在纽约股市收盘后发布了2016财年第三财季的财报,营收和利润不出意外的下滑,不过因为总营收和每股收益超过了市场预期,苹果股票在目前的盘后交易中上涨了7.21%,重回100美元以上。
质量指标SpecificationGB25579-2010FCC,1996含量w/% ZnSO4.H2OContentZnSO4.H2O99.0-100.598.0-100.5ZnSO4.7H2OZnSO4.7H2O99.0-108.799.0-108.7砷(As),mg/kg ≤As0.0003——碱金属和碱土金属盐w/%≤Alkali metal0.500.5酸度PH通过试验正常硒(Se),mg/kg ≤Se0.0030.003汞(Hg),mg/kg ≤Hg0.00010.0005铅(Pb),mg/kg ≤Pb0.00040.001镉(Cd),mg/kg ≤Cd0.00020.0005
1、ChemicalName: Zinc sulfate
2、Molecular Formula :ZnSO4.H2O, ZnSO4.7H2O
3、MolecularWeight:179.48(Monohydrate), 287.54(Heptahydrate)
4、CAS:7446-19-7(H2O);7446-20-0 (7H2O)
5、Character:It iscolorless 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.
另外,在电镀和电解工业中也有应用,还可以用于制造电缆。[4]工业中冷却用水是最大用量水。在密闭式循环冷却系统中的冷却水对金属不能有腐蚀和结垢,因此要进行处理,这个过程就叫水质稳定,硫酸锌在此用作水质稳定剂。[5]医药上的运用医药上用于催吐剂。
化 学 名: 硫酸锌
英文名称: Zinc Sulfate
分 子 式: ZnSO4.H2O, ZnSO4.7H2O
分 子 量: 179.49(一水),287.58(七水)
CAS NO: 7446-19-7(一水);7446-20-0(七水)
性 能: 无色晶体,小针状或粒状晶形粉末,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。
用 途: 食品补充剂,动物饲料,媒染剂,木材防腐剂,分析试剂。
包 装: 内衬聚乙烯塑料袋,外套塑料编织袋,每袋25Kg。
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GB25579-2010FCC,1996 含量 w/%ZnSO4.H2O99.0-100.598.0-100.5ZnSO4.7H2O99.0-108.799.0-108.7 砷(As), mg/kg ≤0.0003-碱金属和碱土金属盐 w/% ≤0.500.5酸度通过试验正常硒(Se), mg/kg ≤0.0030.003汞(Hg), mg/kg ≤0.00010.0005铅(Pb), mg/kg ≤0.00040.001镉(Cd), mg/kg ≤0.00020.0005