Database/Abrasive/Dicalcium Phosphate Dihydrate
100% natural origin · ISO 16128

Is Dicalcium Phosphate Dihydrate natural?

Yes. Calcium and phosphate come from limestone and mined phosphate rock, and the crystal water is water, so every fragment is mineral-derived natural origin.

INCI nameDicalcium Phosphate Dihydrate
CAS7757-93-9
FormulaCaH5O6P · 172.09 Da
FunctionAbrasive · Opacifying
FeedstockMade by neutralising phosphoric acid (from mined phosphate…

How we scored it

CaHPO4.2H2O 172 Da: Ca 40 + HPO4 96 + 2 H2O 36 are all mineral or water, natural origin. 172/172 = 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

Made by neutralising phosphoric acid (from mined phosphate rock) with calcium hydroxide or carbonate (limestone) and crystallising the dihydrate. No petrochemical route exists.

In plain English

A mineral powder, also called brushite, used as a mild abrasive and opacifier in toothpastes. It is made by reacting phosphoric acid from mined phosphate rock with lime.

Structure

2D structure of Dicalcium Phosphate Dihydrate

calcium;hydrogen phosphate;dihydrate

PubChem CID 104805 ↗

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. 2Dicalcium Phosphate Dihydrate. PubChem CID 104805. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3DICALCIUM PHOSPHATE DIHYDRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4DICALCIUM PHOSPHATE DIHYDRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=DICALCIUM%20PHOSPHATE%20DIHYDRATE