Trisodium Phosphate

Trisodium Phosphate (TSP) is a strongly alkaline inorganic compound with powerful cleaning and degreasing properties. It is highly soluble in water and produces a pH of approximately 12. TSP is widely used as a cleaning agent, paint preparation surface cleaner, and food additive. It effectively saponifies fats and oils, making it ideal for industrial and household cleaning applications.

CAS:

7601-54-9

Formula:

Na3PO4

Molar Weight

163.94 g/mol (anhydrous), up to 380.12 g/mol (dodecahydrate)

Melting Point

73-75°C (hydrates), decomposes at 150°C

Boiling Point

Not applicable (decomposes)

Density

1.62-2.54 g/cm³ (depending on hydration state)

Forms

White granular or crystalline solid, Available as anhydrous and various hydrates

Odor

Odorless

Key applications

Heavy-duty cleaning and degreasing agent
Surface preparation before painting
pH adjuster in food processing
Emulsifier in processed cheese
Water softener in detergents

Industries

Cleaning Products Industry
Paint and Coating Industry
Food Processing
Dairy Industry
Detergent Manufacturing
Water Treatment
Metal Surface Treatment

TSP, Trisodium orthophosphate, Sodium phosphate tribasic, Tribasic sodium phosphate, E339(iii)

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