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1.02066 Supelco

Calcium carbonate

precipitated for analysis EMSURE® Reag. Ph Eur

  • CAS Number 471-34-1

  • Linear Formula CaCO3

  • Molecular Weight 100.09

  •  Beilstein/REAXYS Number 8008338

  •  MDL number MFCD00010906

  •  EC Index Number 207-439-9

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Properties

Agency/Method   reag. Ph. Eur.
Quality Level   300
assay   98.5-100.5% dry basis (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)
density   2.93 g/mL at 25 °C (lit.)
bulk density   300‑1400 kg/m3
anion traces   chloride (Cl-): ≤0.005%
  sulfate (SO42-): ≤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
storage conditions   Store at +5°C to +30°C.

Description

Analysis Note

Assay (complexometric; calculated on dried substance): 98.5 - 100.5 %
Identity: passes test
Substances insoluble in acetic acid: ≤ 0.2 %
Substances insoluble in hydrochloric acid: ≤ 0.005 %
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.03 %
Heavy metals (as Pb): ≤ 0.002 %
Total nitrogen (N): ≤ 0.001 %
Al (Aluminium): ≤ 0.005 %
As (Arsenic): ≤ 0.0004 %
Ba (Barium): passes test
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.02 %
Na (Sodium): ≤ 0.2 %
Pb (Lead): ≤ 0.0005 %
Sr (Strontium): ≤ 0.1 %
Magnesium and alkali metals: ≤ 1.5 %
Particle size (d 50): about 14 µm
Loss on drying (200 °C): ≤ 1.0 %
Corresponds to Reag. Ph Eur

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EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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