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無機化學試劑
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    碳酸鈉
詳細介紹

產品名稱:無水碳酸鈉         級別: AR/CP

執行標準:GB/T 639-2008

分子式: Na2CO3

本試劑為無色粉末,暴露于空氣中逐漸吸水成為一水合物,溶于水,不溶于乙醇。


項  目

指 標

AR

CP

含量(Na2CO3),W/%                ≥

99.8

99.8

澄清度試驗/號                  ≤

3

4

水不溶物,W/%                   ≤

0.01

0.02

灼燒失量(300℃),W/%          ≤

1.0

1.0

氯化物(Cl),W/%               ≤

0.002

0.005

硫化合物(SO4),W/%            ≤

0.005

0.01

總氮量(N), W/%                  ≤

0.001

0.002

磷酸鹽及硅酸鹽(以SiO3計),W/%   ≤

0.006

0.013

鎂(Mg),    W/%                   ≤

0.002

0.005

鋁 (Al),    W/%                   ≤

0.003

0.01

鉀(K) , W/%                    ≤

0.005

0.02

鈣(Ca) , W/%                   ≤

0.01

0.02

鐵(Fe) , W/%                   ≤

0.0005

0.001

重金屬(以Pb計),    W/%          ≤

0.0005

0.001

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