Dipotassium Phosphate
molecular structure · PubChem
AKA: 7758-11-4, Dipotassium hydrogen phosphate, Potassium phosphate dibasic, Dipotassium hydrogenphosphate, Dibasic potassium phosphate, Dibasic, Phosphoric acid, Dipotassium salt, Potassium dibasic phosphate, Dipotassium monophosphate
Synthetic
Clean
Dipotassium hydrogenorthophosphate
Solubility Freely soluble in water. Insoluble in ethanol
Formula
HK2O4P
Mol. Weight
174.18
CAS #
7758-11-4
Form
Powder
State
Pellets or Large Crystals; Liquid, Other Solid; Dry Powder; Liquid
Functions
Anticorrosive
Buffering
Prevents Corrosion
Stabilizes pH
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Prevents product degradation
Maintains optimal pH
Traditional Use
A mineral salt developed for use in cosmetics as a pH buffer and chelating agent in the mid-20th century. Also used historically in food preservation and industrial applications.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR