Database/Buffering/Calcium Dihydrogen Phosphate
100% natural origin · ISO 16128

Is Calcium Dihydrogen Phosphate natural?

Yes. Calcium and phosphate come from phosphate rock and lime or limestone, and this site's method counts mineral ions and phosphate as natural origin.

INCI nameCalcium Dihydrogen Phosphate
CAS7758-23-8
FormulaCaH4O8P2 · 234.05 Da
FunctionBuffering
FeedstockDominant route reacts phosphoric acid (from mined phosphate…

How we scored it

Ca 40.1 + 2 H2PO4 194.0 = 234.1 Da; calcium and phosphate are both mineral natural origin: 234.1/234.1 = 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

Dominant route reacts phosphoric acid (from mined phosphate rock) with calcium carbonate or lime. No petrochemical route exists.

In plain English

A white mineral salt (monocalcium phosphate) used as a pH buffer. It is made by reacting phosphate rock or phosphoric acid with calcium compounds, so both calcium and phosphate are mineral in origin.

Structure

2D structure of Calcium Dihydrogen Phosphate

calcium bis(dihydrogen phosphate)

PubChem CID 24454 ↗

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. 2Calcium Dihydrogen Phosphate. PubChem CID 24454. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CALCIUM DIHYDROGEN PHOSPHATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CALCIUM DIHYDROGEN PHOSPHATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CALCIUM%20DIHYDROGEN%20PHOSPHATE