| Ground calcium carbonate | Precipitated calcium carbonate | Dolomite | |
| IUPAC name | limestone | carbonic acid calcium salt | dolomite |
| molecular formula | CaCO3 | CaCO3 | CaMg(CO3)2 |
| EINECS n° | 215-279-6 | 207-439-9 | 240-440-2 |
| CAS n° | 1317-65-3 | 471-34-1 | 16389-88-1 |
| Colour index | 77220 | 77220 | |
| EU food additive | E 170 | E 170 | |
| EU food contact (PM/REF) | 42500 | 42500 | 42500 |
| FDA | GRAS | GRAS |
