Strontium peroxide

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Strontium peroxide
Identifiers
CAS number 1314-18-7
PubChem 14807
EC number 215-224-6
Jmol-3D images {{#if:[O-][O-].[Sr+2]|Image 1
Properties
Molecular formula SrO2
Molar mass 119.619 g/mol
Appearance white powder
Odor odorless
Density 4.56 g/cm3 (anhydrous) 1.91 g/cm3 (octahydrate)
Melting point 215 °C; 419 °F; 488 K (decomp [1])
Solubility in water slightly soluble
Solubility very soluble in alcohol, ammonium chloride
insoluble in acetone
Structure
Crystal structure Tetragonal [2]
Space group D174h, I4/mmm, tI6
Coordination
geometry		 6
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Strontium peroxide (SrO2) is a whitish inorganic compound and a peroxide of strontium.

Uses

It is an oxidizing agent used for bleaching. It is used in some pyrotechnic compositions as an oxidizer and a vivid red pyrotechnic colorant. It can also be used as an antiseptic and in tracer munitions.

Manufacturing

Strontium peroxide is created by passing oxygen over heated strontium oxide. In a manner similar to barium peroxide, SrO2 decomposes to SrO and O2 at temperature, although this temperature is far lower than BaO2. As a consequence, SrO2 is harder to manufacture as the lower temperatures kinetically inhibit the peroxidation reaction on the atomic scale.[3]

References

  1. ↑ Accommodation of Excess Oxygen in Group II Monoxides - S.C. Middleburgh, R.W. Grimes, K.P.D. Lagerlof http://onlinelibrary.wiley.com/doi/10.1111/j.1551-2916.2012.05452.x/abstract
  2. ↑ Massalimov, I. A.; Kireeva, M. S.; Sangalov, Yu. A. (2002). Inorganic Materials 38 (4): 363. doi:10.1023/A:1015105922260. 
  3. ↑ Accommodation of Excess Oxygen in Group II Monoxides - S.C. Middleburgh, R.W. Grimes, K.P.D. Lagerlof http://onlinelibrary.wiley.com/doi/10.1111/j.1551-2916.2012.05452.x/abstract

See also

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