碳酸钙，Calcium carbonate；ACS reagent, chelometric standard, 99.95-100.05% dry basis

等级

ACS reagent
chelometric standard

质量水平

200

测定

99.95-100.05% dry basis

形式

powder

杂质

≤0.01% NH₄OH pptd.
≤0.01% insol. dil. HCl

pH值（酸碱度）

8

溶解性

dilute HCl: 6.7%

密度

2.93 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl^-): ≤0.001%
fluoride (F^-): ≤0.0015%
sulfate (SO₄^2-): ≤0.005%

痕量阳离子

Ba: ≤0.01%
Fe: ≤0.002%
K: ≤0.01%
Mg: ≤0.01%
NH₄⁺: ≤0.003%
Na: ≤0.01%
Sr: ≤0.1%
heavy metals: ≤0.001% (by ICP)

SMILES string

[Ca++].[O-]C([O-])=O

InChI

1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2

InChI key

VTYYLEPIZMXCLO-UHFFFAOYSA-L