碳酸钙，Calcium carbonate；precipitated for analysis EMSURE® Reag. Ph Eur, 98.5-100.5% dry basis (complexometric)

Agency

reag. Ph. Eur.

质量水平

300

产品线

EMSURE^®

测定

98.5-100.5% dry basis (complexometric)

形式

solid

效能

6450 mg/kg LD₅₀, oral (Rat)
>2000 mg/kg LD₅₀, skin (Rat)

杂质

≤0.005% Substances insoluble in hydrochloric acid
≤0.2% Substances insoluble in acetic acid

缺失

≤ 1.0% loss on drying, 200 °C

粒径

~14 μm (D 50)

pH值（酸碱度）

9.5-10.5 (20 °C, 100 g/L in H₂O, slurry)

mp

825 °C (decomposition)

密度

2.93 g/mL at 25 °C (lit.)

堆积密度

300‑1400 kg/m³

痕量阴离子

chloride (Cl^-): ≤0.005%
sulfate (SO₄^2-): ≤0.03%

痕量阳离子

Al: ≤0.005%
As: ≤0.0004%
Ba:, passes test
Cu: ≤0.0005%
Fe: ≤0.001%
K: ≤0.005%
Mg: ≤0.02%
Mg and allied cations: ≤1.5%
N: ≤0.001%
Na: ≤0.2%
Pb: ≤0.0005%
Sr: ≤0.1%
heavy metals (as Pb): ≤0.002%

储存温度

10-30°C

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