Strontium peroxide

Strontium peroxide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.013.841 Edit this at Wikidata
EC Number
  • 215-224-6
UNII
  • InChI=1S/O2.Sr/c1-2;/q-2;+2
  • [O-] [O-].[Sr+2]
Properties
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) (decomposes)[1]
slightly soluble
Solubility very soluble in alcohol, ammonium chloride
insoluble in acetone
Structure
Tetragonal [2]
D174h, I4/mmm, tI6
6
Hazards
GHS labelling:
GHS03: OxidizingGHS05: CorrosiveGHS07: Exclamation mark[3]
Danger
H302, H312, H317, H331, H350
P220, P261, P280, P305+P351+P338
Safety data sheet (SDS) External SDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Strontium peroxide is an inorganic compound with the formula Sr O2 that exists in both anhydrous and octahydrate form, both of which are white solids. The anhydrous form adopts a structure similar to that of calcium carbide.[4][5]

  1. ^ Middleburgh, Simon C.; Lagerlof, Karl Peter D.; Grimes, Robin W. (2013). "Accommodation of Excess Oxygen in Group II Monoxides". Journal of the American Ceramic Society. 96: 308–311. doi:10.1111/j.1551-2916.2012.05452.x.
  2. ^ Massalimov, I. A.; Kireeva, M. S.; Sangalov, Yu. A. (2002). "Structure and Properties of Mechanically Activated Barium Peroxide". Inorganic Materials. 38 (4): 363–366. doi:10.1023/A:1015105922260. S2CID 91881752.
  3. ^ "Strontium Peroxide". American Elements. Retrieved March 7, 2019.
  4. ^ Bernal, J. D.; D'yatlova, E.; Kasarnovskii, I.; Raikhstein, S. I.; Ward, A. G. "The structure of strontium and barium peroxides" Zeitschrift für Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (1935), 92, 344-54.
  5. ^ Natta, G. "Structure of hydroxides and hydrates. IV. Octahydrated strontium peroxide" Gazzetta Chimica Italiana (1932), 62, 444-56.