Tripotassium phosphate (K3PO4,CAS:7778-53-2) is used in electroplating and toothplate.

Tripotassium phosphate

Tripotassium phosphate anhydrous (K3PO4) is used in food additive, fertilizer, and technical applications.

Tripotassium phosphate

Title: Tripotassium phosphate anhydrous

Synonyms: potassium phosphate tribasic, ATKP
Formula: K3PO4, Molecular: 212.28
CAS #: 7778-53-2, EC #: 231-907-1

Standard(s): FCC V, Q/9071-2008

Grade: Technical grade, Food grade

Potassium phosphate


Item Technical grade Food grade
Packing: 25Kgs/bag, in woven or kraft paper bags with inner bag , or as customer's requirements.
Appearance White powder or granule White powder or granule
Assay (K3PO4) % ≥98 ≥98
P2O5 % 32.8 approx 32.8 approx
K2O % 65 approx 65 approx
Iron (Fe) % ≤0.01 /
Arsenic (As) % ≤0.001 ≤0.0003
Lead (Pb) % / ≤0.0002
Heavy metal (as Pb) % ≤0.005 /
Fluoride (F) % / ≤0.001
Chloride (Cl) % ≤0.1 /
pH (1% sol.) 11.5~12.5 11.5~12.5
Water insoluble % ≤0.1 ≤0.1
Loss on ignition % ≤1.0 ≤2.0


Tripotassium phosphate is colorless crystals or white powder. It is soluble in water, insoluble in alcohol.

Solution is alkaline, strong corrosive, and strong moisture absorption.

Density: 2.564/cm3. Melting point: 1340 ℃.


Tripotassium phosphate can be used as an emulsifier, foaming agent and whipping agent and other food additive. It is a potential antimicrobial agent in poultry processing combined with fatty acids.

Tripotassium phosphate is normally used as a fertilizer to make fertilizer compounds of N, P2O5, and K2O.

Storage & handling

Keep in cool dry place.

Air transportation: arranged as ordinary goods.

Harzards Identification & Classifications: N/A

Shelf life

12 months.

Related products

Support: Tripotassium phosphate technical datasheet (TDS), Tripotassium phosphate material safety datasheet (MSDS).

Remarks:Tripotassium phosphate (CAS:7778-53-2) is used in food additive, fertilizer, and technical applications.