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Crystal Structure and Chemical Stabilization of the Triple Salt (KHSO5)2⋅KHSO4⋅K2SO4

✍ Scribed by Otto Ermer; Christof Röbke

Publisher: John Wiley and Sons
Year: 2003
Tongue: German
Weight: 131 KB
Volume: 86
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.200390238

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✦ Synopsis

Abstract

The title compound, a versatile and chemically stabilized oxidant, which is used technologically on a large scale, builds up an intercalation‐type of crystal structure with alternating sheets of sulfate and peroxomonosulfate anions, interspersed by the potassium cations. The sulfate ions are joined by a very short but nonetheless probably asymmetric hydrogen bond. At room temperature, the HSO$\rm{_{5}^{-}}$ ions show dynamic orientational/conformational disorder in the area of the hydrogenperoxo group, which disappears at 100 K. The chemical stabilization of the triple salt is ascribed to shielding of the HSO$\rm{_{5}^{-}}$ ions effected by the intercalation between the sulfate sheets and, furthermore, by the large and abundant K^+^ ions of this potassium‐rich compound.

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