1.02067

Supelco

Calcium carbonate

precipitated for analysis of silicates EMSURE®

Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
Beilstein/REAXYS Number:
8008338
MDL number:
EC Index Number:
207-439-9

storage conditions

Store at +5°C to +30°C.

Quality Level

assay

≥99.0% (complexometric)

form

solid

potency

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

pH

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

mp

825 °C (decomposition)

solubility

0.017 g/L

density

2.93 g/mL at 25 °C (lit.)

bulk density

300‑1400 kg/m3

anion traces

chloride (Cl-): ≤0.02%
sulfate (SO42-): ≤0.01%

cation traces

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%

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

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Analysis Note

Assay (complexometric): ≥ 99.0 %
Substances insoluble in hydrochloric acid: ≤ 0.005 %
Chloride (Cl): ≤ 0.02 %
Sulfate (SO₄): ≤ 0.01 %
Total nitrogen (N): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.001 %
Ba (Barium): ≤ 0.02 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.002 %
Mg (Magnesium): ≤ 0.02 %
Na (Sodium): ≤ 0.005 %
Sr (Strontium): ≤ 0.02 %

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