碳酸钙，Calcium carbonate；precipitated for analysis of silicates EMSURE®, ≥99.0% (complexometric)

质量水平

300

产品线

EMSURE^®

测定

≥99.0% (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

pH值（酸碱度）

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

mp

825 °C (decomposition)

溶解性

0.017 g/L

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^-): ≤0.02%
sulfate (SO₄^2-): ≤0.01%

痕量阳离子

Ba: ≤0.02%
Fe: ≤0.001%
K: ≤0.002%
Mg: ≤0.02%
N: ≤0.01%
Na: ≤0.005%
Sr: ≤0.02%
heavy metals (as Pb): ≤0.001%

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