Disodium Pyrophosphate

AKA “7758-16-9, Sodium acid pyrophosphate, Disodium dihydrogen pyrophosphate, Disodium dihydrogen diphosphate, Diphosphoric acid, disodium salt, Disodium acid pyrophosphate, Dinatriumpyrophosphat, H5WVD9LZUD, Pyrophosphoric acid”

Ingredient

Ingredient Facts

Disodium pyrophosphate

AKA: 7758-16-9, Sodium acid pyrophosphate, Disodium dihydrogen pyrophosphate, Disodium dihydrogen diphosphate, Diphosphoric acid, Disodium salt, Disodium acid pyrophosphate, Dinatriumpyrophosphat, H5WVD9LZUD, Pyrophosphoric acid

Ingredient · Anticorrosive · EWG: 1

Synthetic

Chelating Agent

Clean

Disodium dihydrogenpyrophosphate

Solubility Soluble in water

Formula

H2Na2O7P2

Mol. Weight

221.94

CAS #

7758-16-9

Form

Powder

State

Dry Powder; Liquid; Other Solid; Pellets or Large Crystals

See origin →

Functions

Anticorrosive

Buffering

Chelating

Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.

Prevents Corrosion

Stabilizes pH

Removes Metal Ions

Antioxidant Protection

Prevents product degradation

Maintains optimal pH

Binds metal ions

Traditional Use

Identified as a phosphate compound in 19th-century chemistry. Adopted in cosmetics in the 20th century as a sequestrant and chelating agent to improve product stability.