TIANJIN JINHUITAIYA CHEMICAL REAGENTS CO.,LTD
天津金汇太亚化学试剂有限公司
Test Report of Product 检验报告
品 名: 硫酸锌(ZnSO4·7H2O) 规格: 分析纯
Product: Zinc sulfate heptahydrate Specification : AR
标准依据: GB/T666—1993 批号: 20100615
Standard: GB/T666—1993 Batch No: 20100615
检验项目
T e s t I t e m
|
检验标准
T e s t S t a n d a r d
|
检验结果
T e s t r e s u l t
|
性状
(Characters)
|
白色结晶性粉末
(White crystalline powder)
|
合格
(Conform)
|
含量
(Assay)
|
99.5%
|
99.6%
|
PH
(Ph)
|
4.4~6.0
|
5.1
|
澄清度实验
(Appearance of solution)
|
应符合规定
(Comply with the standard)
|
合格
(Conform)
|
水不溶物
(Water-insoluble)
|
0.01%
|
0.005%
|
氯化物
(Chloride)
|
0.0005%
|
0.0005%
|
总氮量
(Total nitrogen)
|
0.001%
|
0.001%
|
砷
(Arsenic)
|
0.00005%
|
0.00005%
|
锰
(Manganese)
|
0.0003%
|
0.0002%
|
铁
(Iron)
|
0.0005%
|
0.0004%
|
铜
(Cuprum)
|
0.001%
|
0.001%
|
镉
(Cadmium)
|
0.0005%
|
0.00045%
|
铅
(Lead)
|
0.001%
|
0.001%
|
硫化铵不沉淀物
(Hydrogen sulfide not precipitate)
|
0.05%
|
0.05%
|
结论(Conclusion):符合分析纯之规定(The above product complies with AR)
|