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: 碳酸氢钠(NaHCO3) 规格: 分析纯
Product: Sodium bicarbonate Specification : A R
标准依据: GB/T 640-1997 批号: 20100525
Standard: GB/T 640-1997 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)
|
白色粉末
(White powder)
|
合格
(Conform)
|
含量
(Assay)
|
99.5%
|
99.8%
|
PH
(Ph)
|
8.6
|
8.5
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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%
|
0.01%
|
氯化物
(Chloride)
|
0.002%
|
0.0002%
|
硫酸盐
(Sulphates)
|
0.005%
|
0.005%
|
总氮量
(Total nitrogen)
|
0.001%
|
0.0008%
|
磷酸盐和硅酸盐
(Phosphate and silicate)
|
0.005%
|
0.001%
|
镁
(Magnesium)
|
0.003%
|
0.003%
|
钾
(Potassium)
|
0.01%
|
0.01%
|
钙
(Calcium)
|
0.007%
|
0.005%
|
铁
(Iron)
|
0.001%
|
0.001%
|
重金属
(Heavy metal)
|
0.001%
|
0.001%
|
结论(Conclusion):符合分析纯之规定(The above product complies with AR)
|