Calcium carbonate

Agency

reag. Ph. Eur.

Quality Level

300

product line

EMSURE^®

Assay

98.5-100.5% dry basis (complexometric)

form

solid

potency

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

impurities

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

loss

≤ 1.0% loss on drying 200 °C

particle size

~14 μm (D 50)

pH

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

mp

825 °C (decomposition)

density

2.93 g/mL at 25 °C (lit.)

bulk density

300‑1400 kg/m³

anion traces

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

cation traces

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%

storage temp.

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