Ammonium Phosphate

Ammonium Phosphate molecular structure
molecular structure · PubChem
AKA: Ammonium dihydrogen phosphate, 7722-76-1, Ammonium biphosphate, MONOAMMONIUM PHOSPHATE, Ammonium dihydrogen orthophosphate, Phosphoric acid, Monoammonium salt, Ammonium monophosphate, Ammonium dihydrophosphate, Primary ammonium phosphate, Monobasic ammonium phosphate
Synthetic
Not Clean
Ammonium dihydrogenorthophosphate
Effective at 4.78%
Solubility Slightly soluble in ethanol; insoluble in acetone
Formula
H6NO4P
Mol. Weight
115.03
CAS #
7722-76-1
Form
Powder
State
Dry Powder, Pellets or Large Crystals; Pellets or Large Crystals; NKRA; Other Solid; Liquid; Dry Powder
Functions
Buffering
Oral Care
Stabilizes pH
Reduces Inflammation
Locks In Moisture
Supports dental health
Maintains optimal pH
Traditional Use
A synthetic salt developed for industrial uses. Incorporated into cosmetics in the 20th century as a buffering and pH-regulating agent with no significant traditional use history.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.25%
9.3%
0%13%
Reported use
CIR reported use: 0.25-9.3
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR