Sodium fluoride
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| Sodium fluoride | |
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| General | |
| Systematic name | Sodium fluoride |
| Other names | Sodium(I) fluoride |
| Molecular formula | NaF |
| Molar mass | 41.98817 g/mol |
| Appearance | Clear-white solid. |
| CAS number | [7681-49-4] |
| Properties | |
| Density and phase | 2.558 g/cm3, solid |
| Solubility in water | 4.22 g/100g H2O at 18°C |
| Melting point | 993°C |
| Boiling point | 1700°C |
| Basicity (pKb) | N/A |
| Hazards | |
| MSDS | External MSDS |
| EU classification | Very Toxic (+T) |
| R-phrases | R26, R27, R28, R32, R36, R38 |
| S-phrases | S22, S36, S45 |
| NFPA 704 |
0
2
0
|
| Flash point | Non-flammable. |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Other anions | sodium chloride sodium bromide sodium iodide |
| Other cations | potassium fluoride calcium fluoride |
| Related bases | None listed. |
| Related compounds | None listed. |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Sodium fluoride is an ionic compound whose formula is NaF.
It was once used to fluoridate water; however, hexafluorosilicic acid (H2SiF6) and its sodium salt (Na2SiF6) are more commonly used, especially in the United States.
Sodium fluoride is also an ingredient in toothpaste that prevents cavities.
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