碳酸钙

等级

ACS reagent

质量水平

200

检测方案

≥99.0%

形式

powder

杂质

≤0.002 meq/g water-soluble titr. base
≤0.005% oxidizers
≤0.01% NH4OH pptd.
≤0.01% insol. dil. HCl

pH值（酸碱度）

8

密度

2.93 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
fluoride (F-): ≤0.0015%
sulfate (SO42-): ≤0.01%

痕量阳离子

Ba: ≤0.005%
Fe: ≤0.003%
K: ≤0.01%
Mg: ≤0.02%
NH4+: ≤0.003%
Na: ≤0.1%
Sr: ≤0.1%
heavy metals: ≤0.001% (by ICP-OES)