CALCIUM CARBONATE
Prepared at the 17th JECFA (1973), published in FNP 4 (1978) and in FNP 52 (1992). Metals and arsenic specifications revised at the 63rd JECFA (2004) An ADI 'not limited' was established at the 9th JECFA (1965)
SYNONYMS Chalk; INS No. 170 (i)
DEFINITION
Chemical names Calcium carbonate, carbonic acid calcium salt
C.A.S. number 471-34-1
Chemical formula CaCO3
Formula weight 100.09
Assay Not less than 98.0% after drying
DESCRIPTION Odourless, white micro-crystalline powder
FUNCTIONAL USES Anticaking agent
