MAGNESIUM CARBONATE, LIGHT

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Magnesii subcarbonas levis

DEFINITION
Hydrated basic magnesium carbonate.
Content: 40.0 per cent to 45.0 per cent, calculated as MgO
(M r 40.30).

CHARACTERS
Appearance: white or almost white powder.
Solubility: practically insoluble in water. It dissolves in dilute acids with effervescence.

IDENTIFICATION
A. Bulk density (2.9.34): maximum 0.15 g/mL.
B. It gives the reaction of carbonates (2.3.1).
C. Dissolve about 15 mg in 2 mL of dilute nitric acid R and neutralise with dilute sodium hydroxide solution R. The solution gives the reaction of magnesium (2.3.1).

【 Packing  】
10Kg Carton or Drum
【 Standard 】

USP/BP/EP/JP

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