trisodium phosphate

Also known as tribasic sodium phosphate, tribasic sodium orthophosphate, tertiary sodium phosphate, sodium orthophosphate, phosphoric acid trisodium salt, Na3PO4, sodium phosphate, tribasic, sodium phosphate

inorganic chemical compound

Chemical data

Formula: Na3O4P
Molecular weight: 163.941 g/mol
IUPAC name: trisodium;phosphate
SMILES: [O-]P(=O)([O-])[O-].[Na+].[Na+].[Na+]
InChIKey: RYFMWSXOAZQYPI-UHFFFAOYSA-K
Polar surface area: 86.3 Å²
H-bond donors: 0
H-bond acceptors: 4
Formal charge: 0

via PubChem

Wikidata facts

Mass: 163.923
Image: Fosforečnan sodný.JPG

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Article

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

As an item of commerce TSP is often partially hydrated and may range from anhydrous Na3PO4 to the dodecahydrate Na3PO4·12H2O. Most often it is found in white powder form. It can also be called trisodium orthophosphate or simply sodium phosphate.