MAGNESIUM CARBONATE, HEAVY
Magnesii subcarbonas ponderosus
DEFINITIONHydrated 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): minimum 0.25 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 】
25Kg Carton or Drum
【 Standard 】
USP/BP/EP/JP/CP
