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MAGNESIUM OXIDE LIGHT AR

Confirms IP specification
Magnesia, Calcined Magnesite, Calcinated Magnesia

COAs

Packings

25 Kg (0025K)

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Article No. 4472D Grade AR
Purity 98% CAS No. 1309-48-4
Molecular Formula MgO Molecular Weight 40.30
H.S. Code 2519.9040 Shelf Life 60 Months

Specifications

Appearance A very fine, light, white powder. 15 g occupies a volume of about 150 ml Assay (as MgO; on ignited basis) 98.0 - 100.5%
Identification 'A' & 'B' Passes IP test Apparent Volume 15 gms occupies a volume of 150 ml
Appearance of solution Solution A should not more intensely colour than reference solution BS2 Arsenic (As2O3) Max 0.0004%
Iron (Fe) Max 0.1% Chloride (Cl) Max 0.125%
Sulphate (SO4) Max 1.0% Calcium (Ca) Max 1.5%
Soluble substance Max 2.0% Substance insoluble in acetic acid Max 0.1%
Residue on ignition (at 800°C) Max 8.0% (on 0.5 g) Solubility Practically insoluble in water,insoluble in ethanol (95%).It dissolves in dilute acids with at most slihght effervences
Revision Date: 12-Oct-2026

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