Strontium perchlorate

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Strontium perchlorate
Names
Other names
Strontium(II) perchlorate; Strontium diperchlorate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.272 Edit this at Wikidata
EC Number
  • 236-614-2
  • InChI=1S/2ClHO4.Sr/c2*2-1(3,4)5;/h2*(H,2,3,4,5);/q;;+2/p-2
    Key: MXRFIUHRIOLIIV-UHFFFAOYSA-L
  • [O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[Sr+2]
Properties
Sr(ClO4)2
Molar mass 286.51 g·mol−1
Appearance White crystals
Density 2.973 g/cm3[1]
Melting point 477 °C (891 °F; 750 K)[1] (decomposes vigorously)
309.7 g/100 g
Solubility in ethyl acetate 136.9 g/100 g
Solubility in methanol 221.0 g/100 g
Solubility in ethanol 180.7 g/100 g
Solubility in 1-propanol 140.4 g/100 g
Solubility in 1-butanol 113.5 g/100 g
Solubility in isobutanol 77.9 g/100 g
Solubility in acetone 140.1 g/100 g
Structure[2]
orthorhombic
Pbca
a = 14.18206 Å, b = 9.78934 Å, c = 9.37624 Å
α = 10.009°, β = 90°, γ = 90°
1301.73 Å3
8
Hazards
GHS labelling:[3]
GHS03: OxidizingGHS07: Exclamation mark
Danger
H272, H315, H319, H335
P210, P221, P280, P305+P351+P338, P403+P233, P501
NFPA 704 (fire diamond)
[3]
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
1
3
0
OX
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Strontium perchlorate is a deliquescent white crystalline compound with the formula Sr(ClO4)2.[1]

It is a strong oxidizer which gives red flames. It can be used in pyrotechnics; however, usually the more common strontium nitrate is used. Strontium perchlorate has been used in gelled flame compositions where its hygroscopic nature isn't an issue, in a polymerized candle composition that excluded water, and in an experimental high-atmosphere flash powder.[1]

It is also used in Liquid Injection Thrust Vector Control (LITVC) in solid-propellant rockets to enable steering control with a simple fixed nozzle.[citation needed]

Strontium perchlorate has been characterized in multiple hydrated forms; a trihydrate (Sr(ClO4)2·3H2O), tetrahydrate (Sr(ClO4)2·4H2O) and nonahydrate (Sr(ClO4)2·9H2O).[2]

References

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