指标名称 |
钠盐 |
呈正反应 |
呈反应反应 |
呈正反应 |
|
PH |
≤8.6 |
≤8.6 |
≤8.6 |
||
溶液的清度 |
≤2号浊度标准 |
溶液应澄清 |
溶液应澄清 |
||
氯 化 物 |
≤0.02% |
≤0.002% |
≤0.002% |
||
硫 酸 盐 |
≤0.03% |
≤0.005% |
≤0.005% |
||
铁盐 |
≤0.0015% |
≤0.0005% |
≤0.0005% |
||
重 金 属 |
≤0.0005% |
≤0.0005% |
≤0.0005% |
||
砷盐 |
≤0.0002% |
≤0.0002% |
≤0.0001% |
||
[含量测定] |
本品含碳酸氢钠为99.5%-100.5% |
|