Disodium Pyrophosphate
Balances the pH.
What it is
A phosphate salt made in a lab.
Keeps the product's pH steady and binds traces of metals that could affect it.
What it does in a formula
Balances the pHOfficial EU function: Buffering
Keeps the formula stableOfficial EU function: Chelating
AnticorrosiveOfficial EU function: Anticorrosive