Tri Sodium Phosphate

We are manufacturing Tri Sodium Phosphate in Technical, Pure & LR Grade.
These Products are available in 50 kgs Bag/Drum.

A phosphate (PO43−) as an inorganic chemical is a salt of phosphoric acid. Inorganic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Organic phosphates are important in biochemistry and biogeochemistry or ecology. Inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry

Phosphate is useful in animal cells as a buffering agent. Phosphate salts that are commonly used for preparing buffer solutions at cell pHs include Na2HPO4, NaH2PO4, and the corresponding potassium salts.

Trisodium phosphate (TSP) is the inorganic compound with the chemical formula Na3PO4. It is a white, granular or crystalline solid, highly soluble in water producing an alkaline solution. TSPs are used as cleaning agent, lubricant, food additive, stain remover and degreaser.

Technical Details

Product Name : Tri Sodium Phosphate
CAS No. 7601-54-9



Tri Sodium Phosphate

Molecular Formula



White crystals




2.536 g/cm3 (17.5 °C, anhydrous)

1.62 g/cm3 (20 °C, dodecahydrate)


insoluble in ethanol

Molar Mass

163.94 g mol

P2O5 Content


Loss on Drying

Less than 58%

pH Value

11.5-12.5 (2% Sol)


Less than 0.025%

Solubility in Water

Anhydrous: 5.4 g/100 mL (0 °C), 12 g/100 mL (20 °C)

14.5 g/100 mL (25 °C), 23.3 g/100 mL (40 °C)

94.6 g/100 mL (100 °C)

Dodecahydrate: 28.3 g/100 mL (20 °C)

Melting Point

1,340 °C (2,440 °F; 1,610 K) (anhydrous)

73.4 °C (164.1 °F; 346.5 K) (dodecahydrate)

Boiling Point

100 °C (212 °F; 373 K) (dodecahydrate) decomposes