Na₃PO₄Na3PO4163.9400 g·mol⁻¹
Molar mass163.940 g·mol⁻¹calc 163.939 • Atomic weights: CIAAW 2021 (conventional atomic weights)
FormulaNa₃PO₄Na3PO4
Classsalt • ionicsolid
| Element | Count | Mass (g/mol) | Mass % |
|---|---|---|---|
| Na | 3 | 68.969 | 42.07% |
| P | 1 | 30.974 | 18.89% |
| O | 4 | 63.996 | 39.04% |
Physical properties
- State at STP
- solid
- Density
- 2.54 g·cm⁻³ (solid at 20 °C, 1 atm)
- Melting point
- 1840 K (1 atm)
- Boiling point
- —
Structure & bonding
3 Na+ with tetrahedral PO43-. Alkaline hydrolysis in water.
Occurrence & preparation
Neutralization of phosphoric acid with NaOH.
Uses
- Cleaning agent
- Water softener
Safety
Alkaline irritant; wear gloves.
Consult current SDS. — consult current SDS before handling.