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trisodium phosphate
Sign in to saveAlso 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 Ų
- H-bond donors
- 0
- H-bond acceptors
- 4
- Formal charge
- 0
via PubChem
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Encyclopedic overview
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.
Excerpted from Wikipedia’s “trisodium phosphate” article, available under the CC BY-SA 4.0 licence.