Strontium nitrate
5297150
220111024
2008-06-18T09:46:30Z
Kirikou fr
5168652
{{Chembox new
| ImageFile = strontium nitrate.png
| ImageSize = 150px
| IUPACName =
| OtherNames =
| Section1 = {{Chembox Identifiers
| CASNo = 10042-76-9
| PubChem =
| SMILES =
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| Section2 = {{Chembox Properties
| Formula = Sr(NO<sub>3</sub>)<sub>2</sub>
| MolarMass = 211.63 g/mol
| Appearance = white granular solid
| Density = 2.986 g/cm<sup>3</sup>, solid
| MeltingPtC = 570
| BoilingPt = 645 C (1193 F)
| Boiling_notes = decomposition
| Solubility = 71 g/100 ml at 18 °C
}}
| Section3 = {{Chembox Hazards
| MainHazards = Toxic
| EUClass = not listed
| FlashPt =
| Autoignition =
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'''Strontium nitrate''' ([[Strontium|Sr]]([[Nitrogen|N]][[Oxygen|O<sub>3</sub>]])<sub>2</sub>) 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]].<ref name=Ward>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.</ref>
:2 [[Nitric_acid|HNO<sub>3</sub>]] + [[Strontium_carbonate|SrCO<sub>3</sub>]] → Sr(NO<sub>3</sub>)<sub>2</sub> + [[Water|H<sub>2</sub>O]] + [[Carbon_dioxide|CO<sub>2</sub>]]
[[Image:SrCO3_HNO3.jpg|thumb|left|[[Nitric acid]] reacts with [[strontium carbonate]] to form strontium nitrate]]<br style="clear:left;"/>
== Uses ==
Like many other strontium salts, strontium nitrate is used to produce a rich red flame in [[firework]]s and [[road flare]]s. 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(NO<sub>3</sub>)<sub>2</sub> reacts with [[sulfuric acid]] to precipitate [[Strontium sulfate|SrSO<sub>4</sub>]], a precursor to the [[phosphor]] [[strontium sulfide]].<ref name=Ward/>
== Health warning ==
If strontium nitrate is heated to the point of decomposition it will produce [[strontium oxide]] and release toxic [[nitrogen dioxide]] gas.
==References==
<references/>
[[Category:Nitrates]]
[[Category:Strontium compounds]]
[[Category:Inorganic compound stubs]]
[[Category:Pyrotechnic oxidizers]]
[[Category:Pyrotechnic colorants]]
[[ar:نترات سترونتيوم]]
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[[fr:nitrate de strontium]]
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[[pl:Azotan(V) strontu]]