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1.05862 SAFC

Magnesium oxide

light extra pure Ph Eur,BP,USP,E 530

Synonym: Magnesia usta, Magnesium oxide

  • CAS Number 1309-48-4

  • Empirical Formula (Hill Notation) MgO

  • Molecular Weight 40.30

  •  MDL number MFCD00011109

  •  E Number E530

  •  EC Index Number 215-171-9

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Properties

Agency/Method   BP
  Ph. Eur.
  USP
Quality Level   400
pH   10.3 (20 °C in H2O, saturated solution)
bp   3600 °C/1000 hPa
mp   2800 °C
density   3.58 g/cm3 at 25 °C
bulk density   100 kg/m3
InChI   1S/Mg.O
InChI key   CPLXHLVBOLITMK-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

Linkage

Replaces: MX0065B-1

Analysis Note

Assay (complexometric, calc. on the ignited basis): 98.0 - 100.5 %
Assay (complexometric, calculated on the ignited basis according to USP): 96.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Substances soluble in water: ≤ 1.0 %
Substances insoluble in acetic acid: ≤ 0.1 %
Substances insoluble in acid: ≤ 0.1 %
Free alkali (as NaOH): ≤ 0.6 %
Chloride (Cl): ≤ 0.15 %
Sulfate (SO₄): ≤ 0.5 %
As (Arsenic): ≤ 0.0003 %
Ca (Calcium): ≤ 1.0 %
Co (Cobalt)*: ≤ 0.0010
Fe (Iron): ≤ 0.05 %
Ni (Nickel)*: ≤ 0.1000
Pb (Lead): ≤ 0.0002 %
V (Vanadium)*: ≤ 0.0010
Heavy metals (as Pb): ≤ 0.0020 %
Residual solvents (ICH Q3C): excluded by manufacturing process
Loss on ignition (900 °C): ≤ 5.0 %
Bulk density: ≤ 0.15 g/ml
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
Corresponds to Ph Eur, BP, USP, E 530
Conforms to the purity criteria on food additives according to the current European Commission Regulation.

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