MAGNESIUM HYDROXIDE CARBONATE
Prepared at the 27th JECFA (1983), published in FNP 28 (1983) and in FNP 52 (1992). Metals and arsenic specifications revised at the 59th
JECFA (2002. An ADI 'not specified' was established at the 23rd JECFA (1979)
SYNONYMS Magnesium subcarbonate (light or heavy), hydrated basic magnesium carbonate, magnesium carbonate hydroxide; INS No. 504(ii)
DEFINITION Chemical names Magnesium carbonate hydroxide hydrated
Assay Not less than 40.0% and not more than 45.0% of MgO
DESCRIPTION Odourless, light, white, friable masses, or a bulky-white powder
FUNCTIONAL USES Alkali, drying agent, colour-retention agent, carrier, anti-caking agent
