Sodium bromide
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| Sodium bromide | |
|---|---|
| |
| General | |
| Systematic name | Sodium bromide |
| Other names | Sodium(I) bromide |
| Molecular formula | NaBr |
| Molar mass | 102.894 g/mol |
| Appearance | White powder. |
| CAS number | [7647-15-6] |
| Properties | |
| Density and phase | 3.21 g/cm3, solid |
| Solubility in water | N/A |
| Melting point | 755°C |
| Boiling point | 1390°C |
| Basicity (pKb) | N/A |
| Hazards | |
| MSDS | External MSDS |
| EU classification | Irritant (I) |
| R-phrases | R36, R37, R38. |
| S-phrases | S26, S37, S39. |
| NFPA 704 | N/A |
| 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 | None listed. |
| Other cations | None listed. |
| 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) [Chemical infoboxInfobox disclaimer and references] | |
Sodium bromide (NaBr or NaBr.H2O; brand name Sedoneural) is a white, crystalline solid that strongly resembles sodium chloride. It is mildly toxic, soluble in water and slightly soluble in alcohol. Its anhydrous form melts at 747°C and boils at 1390°C.
The chemical is used as a hypnotic, anticonvulsant, and sedative in medicine. As a source of the bromide ion, which is pharmacologically active, it is equivalent to potassium bromide (see this article for more complete discussion of this topic). Sodium bromide is also used in photography and to establish a bromide ion reserve in a bromine spa (hot tub) antimicrobial treatment regimen.
Sodium bromide can be used as a source of the chemical element bromine. This can be accomplished by bubbling chlorine gas through an aqueous solution of sodium bromide, or by treating the salt with a mixture of strong acid to produce HBr, and MnO2 to oxidize HBr to bromine.
This compound is harmful if swallowed or inhaled in large amounts, affecting the central nervous system, brain, and eyes (see potassium bromide). The compound causes irritation to the skin, eyes and respiratory tract.
External links
- For a full list of external links to MSDSs, spectroscopic data, commercial chemicals suppliers etc. for this compound, see [Chemical sources].
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