规格 指标名称 |
分析纯-AR |
化学纯-CP |
高纯 |
含量[(CH3COO)2Ca·H2O] /% |
≥98.0 |
≥98.0 |
99.0~100.5 |
PH值(50g/L,25℃) |
6.5~9.0 |
6.5~9.0 |
6.3~9.6 |
水不溶物/% |
≤0.005 |
≤0.01 |
- |
酸度(以乙酸计) /% |
≤0.2 |
≤0.3 |
- |
氟化物(F) |
— |
— |
≤0.005 |
氯化物(Cl) /% |
≤0.003 |
≤0.005 |
≤0.05 |
硫酸盐(SO4) /% |
≤0.005 |
≤0.01 |
≤0.05 |
铁(Fe) /% |
≤0.001 |
≤0.002 |
- |
镁(Mg) /% |
≤0.002 |
≤0.003 |
- |
重金属(以Pb计) /% |
≤0.001 |
≤0.002 |
≤0.003 |
还原高锰酸钾物质 |
合格 |
合格 |
— |
硝酸盐(NO4) /% |
- |
- |
合格 |
水份/% |
- |
- |
≤7 |
砷(As) /% |
- |
- |
≤0.0003 |