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Magnesium oxide

Made by calcining our own magnesium carbonate at about 700 °C. The raw material is manufactured and released by Rhine, so its purity is assured before the oxide is ever formed.

MgO · light and heavy · E530

Grades

Light magnesium oxide

Low bulk density, high surface area grade for antacid formulations, alkalizer applications and formulations needing high reactivity.

Heavy magnesium oxide

Dense grade with superior flow for magnesium supplement tablets and capsules, granulation and high-load formulations.

Specifications

Manufactured and released against the current pharmacopoeial monographs. Key parameters below; the grade-wise technical data sheet with complete numeric limits and typical values is supplied on request.

MgCO₃≈700 °CFrom our own carbonateTight assay corridorEvery lot testedSealed, batch-labelled
ParameterStandard
DescriptionWhite, fine (or granular) powder; odourless
IdentificationComplies with IP / BP / USP / Ph. Eur. / FCC
Raw materialRhine-made magnesium carbonate, calcined in-house at about 700 °C
Assay (MgO, ignited basis)96.0 – 100.5 % (per applicable monograph)
Bulk densityControlled per grade; light and heavy windows to customer specification
Loss on ignitionWithin monograph limit
Acid-insoluble substancesWithin monograph limit
Chlorides and sulphatesWithin monograph limits
Iron (Fe)Within monograph limit
Elemental impurities (Cd, Pb, As, Hg, V, Ni, Co)ICP-MS tested at an accredited partner laboratory; within ICH Q3D guideline limits
Microbial limitsComplies with pharmacopoeial requirements

Numeric limits follow the current edition of each pharmacopoeia and the grade-wise TDS. Batch-wise COA accompanies every consignment. Released against IP · BP · USP · Ph. Eur. · FCC.

Applications

Pharmaceutical: antacid formulations, alkalizer, magnesium supplementation and excipient use.

Food and nutraceutical (E530): magnesium fortification of foods and supplements, anti-caking applications.

Export: supplied with elemental impurity data per ICH Q3D and documentation support for regulated-market filings.

Food-grade linerTamper-evidentExport labelling

Packing and supply

25 kg HDPE bags / drums with food-grade liners; batch-labelled with full traceability.

Custom packing and labelling available for export consignments.

Samples of magnesium oxide

Request a sample and TDS to test against your acceptance criteria.