Database/Anticorrosive/Sodium Aluminate
100% natural origin · ISO 16128

Is Sodium Aluminate natural?

Yes. Sodium and aluminium both derive from mineral ore, counted as natural origin under the ISO 16128 mineral convention.

INCI nameSodium Aluminate
CAS1302-42-7
FormulaAlNaO2 · 81.970 Da
FunctionAnticorrosive · Buffering
FeedstockMade by reacting bauxite-derived aluminium hydroxide with sodium…

How we scored it

NaAlO2 mineral salt; sodium and aluminate are both mineral-origin fragments → 81.97/81.97 = 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

Made by reacting bauxite-derived aluminium hydroxide with sodium hydroxide. No alternative petrochemical route exists for this inorganic salt.

In plain English

A mineral salt of sodium and aluminium used in small amounts to buffer pH and prevent corrosion in formulas.

Structure

2D structure of Sodium Aluminate

sodium dioxoalumanuide

PubChem CID 14766 ↗

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. 2Sodium Aluminate. PubChem CID 14766. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3SODIUM ALUMINATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4SODIUM ALUMINATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20ALUMINATE