Database/Colorant/CI 77220
100% natural origin · ISO 16128

Is CI 77220 natural?

Yes. Calcium carbonate is a mined or precipitated natural mineral; both the calcium and carbonate parts count as natural origin.

INCI nameCI 77220
CAS471-34-1
FormulaCCaO3 · 100.09 Da
FunctionColorant
FeedstockCI 77220 is calcium carbonate, sourced from natural…

How we scored it

Calcium carbonate, natural mineral -> 1.0
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

CI 77220 is calcium carbonate, sourced from natural limestone, chalk or marble, or precipitated from these minerals. Both the calcium and carbonate portions are natural-origin per ISO 16128.

In plain English

The colour index name for calcium carbonate, a natural mineral ground from limestone or chalk. Used as a white pigment and bulking agent in powders, toothpaste and some colour cosmetics.

CosIng definition: CI 77220 is classed chemically as an inorganic colour. It conforms generally to the formula:

Structure

2D structure of CI 77220

calcium carbonate

PubChem CID 10112 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2CI 77220. PubChem CID 10112. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 77220. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 77220. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2077220