portant;">
portant;">化学名:硫酸锌
portant;">英文名称:Zinc Sulfate
portant;">分子式:ZnSO4.H2O, ZnSO4.7H2O
portant;">分子量:179.49(一水),287.58(七水)
portant;">CAS NO:7446-19-7(一水);7446-20-0(七水)
portant;">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。
portant;">
portant;">质量指标
portant;">GB25579-2010 FCC,1996 含量w/%
portant;">ZnSO4.H2O 99.0-100.5 98.0-100.5
portant;">ZnSO4.7H2O 99.0-108.7 99.0-108.7
portant;">砷(As), mg/kg ≤ 0.0003 -
portant;">碱金属和碱土金属盐w/% ≤ 0.50 0.5
portant;">酸度 通过试验 正常
portant;">硒(Se), mg/kg ≤ 0.003 0.003
portant;">汞(Hg), mg/kg ≤ 0.0001 0.0005
portant;">铅(Pb), mg/kg ≤ 0.0004 0.001
portant;">镉(Cd), mg/kg ≤ 0.0002 0.0005
portant;">
portant;">用 途:食品补充剂、动物饲料、媒染剂、木材防腐剂、分析试剂。
portant;">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。
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