How we scored it
MnO 70.94 Da: Mn 54.94 + O 16.00, both mineral. 70.94 / 70.94 = 1.00.
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
Dominant route is mined manganese ore (pyrolusite or rhodochrosite) converted to the oxide by roasting or reduction. A synthetic oxide made by thermal decomposition of manganese salts is chemically identical and still mineral.
In plain English
A dark mineral powder that absorbs ultraviolet and visible light, used in small amounts as a colourant or UV-absorbing mineral. It comes from manganese ore or is made by heating manganese salts.
CosIng definition: Manganese Oxide
Structure
manganese(2+);oxygen(2-)
References
- 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.
- 2Manganese Oxide. PubChem CID 160959. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3MANGANESE OXIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4MANGANESE OXIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MANGANESE%20OXIDE