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:四硼酸钠(Na2B4O7·10H2O) 规格: 分析纯
Product: Sodium tetraborate decahydrate Specification : A R
标准依据: GB/T 632—1993 批号: 20100525
Standard: GB/T 632—1993 Batch No: 20100525
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)
|
无色结晶性粉末
(Colorless crystalline powder)
|
合格
(Conform)
|
含量
(Assay)
|
99.5%
|
99.6%
|
澄清度实验
(Appearance of solution)
|
应符合规定
(Comply with the standard)
|
合格
(Conform)
|
盐酸不溶物
(hydrochloric acid -insoluble)
|
0.005%
|
0.005%
|
氯化物
(chloride)
|
0.002%
|
0.001%
|
硫酸盐
(Sulphates)
|
0.01%
|
0.005%
|
磷酸盐
(Phosphate)
|
0.002%
|
0.001%
|
钙
(Calcium )
|
0.005%
|
0.005%
|
铁
(Iron)
|
0.0003%
|
0.0002%
|
铜
(Potassium)
|
0.001%
|
0.001%
|
铅
(Magnesium)
|
0.001%
|
0.001%
|
结论(Conclusion):符合分析纯之规定(The above product complies with AR)
|