grade

puriss.

Assay

98.5-100.5% (based on anhydrous substance)

form

powder

quality

meets analytical specification of Ph. Eur., BP, USP, FCC, E170
precipitated

impurities

organic volatile impurities, complies
residual solvents, complies
≤0.002% heavy metals (as Pb)
≤0.2% insoluble in acid (CH₃COOH)
≤0.2% insoluble in hydrochloric acid
≤1% alkali-, Mg-ions (as SO₄)

loss

≤2% loss on drying, 200 °C

pH

8

density

2.93 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤200 mg/kg
fluoride (F^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤2000 mg/kg

cation traces

As: ≤2 mg/kg
Ba:, in accordance
Cu: ≤10 mg/kg
Fe: ≤200 mg/kg
Hg: ≤0.5 mg/kg
Pb: ≤3 mg/kg
Zn: ≤10 mg/kg

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