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: 磷酸二氢钠(NaH2PO4·2H2O) 规格: 分析纯
Product: Sodium phosphate monobasic dihydrate Specification : AR
标准依据: GB/T1267—1999 批号:
Standard: GB/T1267—1999 Batch No:
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)
|
无色或白色结晶
(Colorless or White crystalline)
|
合格
(Conform)
|
含量
(Assay)
|
99.0%
|
99.10%
|
PH
(Ph)
|
4.2~4.6
|
4.5
|
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)
|
0.005%
|
0.003%
|
硫酸盐
(Sulphates)
|
0.005%
|
0.001%
|
硝酸盐
(Nitrites)
|
0.001%
|
0.0008%
|
铵
(Ammonia)
|
0.002%
|
0.002%
|
钾
(Potassium)
|
0.02%
|
0.015%
|
铁
(Iron)
|
0.001%
|
0.001%
|
砷
(Arsenic)
|
0.0002%
|
0.0001%
|
重金属
(Heavy metal)
|
0.001%
|
0.001%
|
氨沉淀物
(Ammonia precipitates)
|
0.01%
|
0.01%
|
结论(Conclusion):符合分析纯之规定(The above product complies with AR)
|