Database/Buffering/Trisodium Phosphate
100% natural origin · ISO 16128

Is Trisodium Phosphate natural?

Yes. Simple inorganic salt of sodium and phosphate, both explicitly natural-origin mineral ions.

INCI nameTrisodium Phosphate
CAS7601-54-9
FormulaNa3O4P · 163.941 Da
FunctionBuffering · Chelating
FeedstockManufactured from phosphate rock and sodium carbonate or…

How we scored it

Sodium and phosphate are both natural mineral-origin. 100% natural.
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

Manufactured from phosphate rock and sodium carbonate or hydroxide as an inorganic mineral salt. Both the sodium and phosphate components are natural-origin under ISO 16128.

In plain English

A mineral salt of sodium and phosphate. Used in cosmetic formulas to control acidity as a buffer and to bind trace metals that could otherwise destabilise a product.

Structure

2D structure of Trisodium Phosphate

trisodium;phosphate

PubChem CID 24243 ↗

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. 2Trisodium Phosphate. PubChem CID 24243. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3TRISODIUM PHOSPHATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4TRISODIUM PHOSPHATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TRISODIUM%20PHOSPHATE