| Strontium nitrate | |
|---|---|
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| IUPAC name |
Strontium nitrate
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| Identifiers | |
| CAS number | 10042-76-9  |
| Properties | |
| Molecular formula | Sr(NO3)2 |
| Molar mass | 211.63 g/mol |
| Appearance | white granular solid |
| Density | 2.986 g/cm3 (anhydrous) 2.20 g/cm3 (tetrahydrate) [1] |
| Melting point |
570 ºC (anhydrous) |
| Boiling point |
645 ºC, decomp |
| Solubility in water | anhydrous: 71 g/100 ml (18 °C) 66 g/100 mL (20 °C) tetrahydrate: 60.4 g/100 mL (0 °C) 206 g/100 mL (100 °C) |
| Solubility | soluble in ammonia very slightly soluble in ethanol, acetone |
| Hazards | |
| EU Index | Not listed |
| Main hazards | Irritant |
| Flash point | Non-flammable |
| Related compounds | |
| Other anions | Strontium sulfate Strontium chloride |
| Other cations | Beryllium nitrate Magnesium nitrate Calcium nitrate Barium nitrate |
| (what is this?) (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Strontium nitrate Sr(NO3)2 is an acid salt of strontium. It is used as an oxidizer and colorant in fireworks.
Preparation
Strontium nitrate is typically generated by the reaction of nitric acid on strontium carbonate.[2]
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 precursor to the phosphor strontium sulfide.[2]
References
- ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0070494398
- ^ a b Ward, R.; Osterheld, R. K.; Rosenstein, R. D. (1950), "Strontium Sulfide and Selenide Phosphors", Inorg. Synth. 3: 11–23
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