How we scored it
Inorganic sodium phosphate salt. 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
Produced by heat-treating sodium phosphate salts derived from phosphate rock. No organic-carbon alternative route.
In plain English
A mineral salt of sodium and phosphate, chained together. Used to prevent corrosion, bind trace metals, and stabilise fragrance.
CosIng definition: Sodium metaphosphate
Structure
hexasodium;2,4,6,8,10,12-hexaoxido-1,3,5,7,9,11-hexaoxa-2lambda5,4lambda5,6lambda5,8lambda5,10lambda5,12lambda5-hexaphosphacyclododecane 2,4,6,8,10,12-hexaoxide
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.
- 2Sodium Hexametaphosphate. PubChem CID 24968. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3SODIUM HEXAMETAPHOSPHATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4SODIUM HEXAMETAPHOSPHATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20HEXAMETAPHOSPHATE