Strontium nitrate
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| Strontium nitrate | |
|---|---|
| Image:Strontium nitrate.jpg | |
| General | |
| Other names | |
| Molecular formula | Sr(NO3)2 |
| Molar mass | 211.63 g/mol |
| Appearance | white granular solid |
| CAS number | [10042-76-9] |
| Properties | |
| Density and phase | 2.986 g/cm3, solid |
| Solubility in water | 71 g/100 ml water at 18C |
| Melting point | 570 °C |
| Boiling point | Dec. |
| Hazards | |
| EU classification | not listed |
| NFPA 704 | |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
|
Strontium nitrate (Sr(NO3)2) is a strontium - nitric acid salt. It has uses as an oxidizer and colorant in fireworks.
Contents |
[edit] Preparation
Strontium nitrate is typically generated by the reaction of hot nitric acid on strontium carbonate.[1]
[edit] Uses
Like many other strontium salts, strontium nitrate is used to produce a rich red flame in fireworks and road flares. The primary difference strontium nitrate has over the other salts is the fact it is an oxidizer. This provides two uses in pyrotechnics.
Solutions of Sr(NO3)2 reacts with sulfuric acid to precipitate SrSO4, a precusor to the phosphor strontium sulfide.[1]
[edit] Health warning
If strontium nitrate is heated to the point of decomposition it will produce strontium oxide and release the toxic gas nitrogen dioxide.
[edit] References
- ^ a b Ward, R.; Osterheld, R. K.; Rosenstein, R. D. "Strontium Sulfide and Selenide Phosphors" Inorganic Syntheses McGraw-Hill: New York, 1950; Vol. 3, p. 11-23.
