INS No. 170(i)
CAS No. 471-34-1
CI Pigment White 18
CI No. 77220
EINECS No. 207-439-9
Calcium carbonate is an odorless, fine, white micro-crystalline powder consisting essentially of calcium carbonate (CaCO3) prepared either by grinding naturally occurring limestone or synthetically, by precipitation.
Calcium carbonate can be used to color food such as confectionery products, as well as pharmaceuticals.
Calcium carbonate is a food additive that is included in Table 3 of the General Standard of Food Additives (GSFA), and as such may be used in specified foods under the conditions of good manufacturing practices (GMP) as outlined in the Preamble of the Codex GSFA. Calcium carbonate could also be used in heat-treated butter milk of food category 01.1.1 and spices of food category 12.2.1, as well as numerous Commodity Standards.