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Chemical compound From Wikipedia, the free encyclopedia
Hydronium perchlorate is an inorganic chemical compound with the chemical formula [H3O]ClO4. It is an unusual salt due to it being a solid and stable hydronium salt. It consists of hydronium cations [H3O]+ and perchlorate anions ClO−4.
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Properties | |||
[H3O]ClO4 | |||
Molar mass | 118.47 g·mol−1 | ||
Appearance | Colorless solid | ||
Density | 1.96 g/cm3 | ||
Melting point | 45 °C (113 °F; 318 K) | ||
Structure[1] | |||
Orthorhombic | |||
Pnma | |||
a = 9.2343 Å, b = 5.8178 Å, c = 7.4606 Å | |||
Related compounds | |||
Other anions |
Hydronium chloride | ||
Other cations |
Perchloric acid | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Hydronium perchlorate is produced by the reaction of anhydrous perchloric acid and water in a 1:1 molar ratio:[2]
A more analytically reliable method was reported using the macrocyclic Schiff base of sodium 2,6-diformyl-4-methylphenolate and 2,6-diformyl-4-methylphenol as a chelating agent to sequester Cu(II): transmetallation of the macrocycle with copper(II) perchlorate yielded colorless crystals of hydronium perchlorate.[1]
It can also be produced by the reaction of anhydrous nitric acid and perchloric acid.[3][clarification needed]
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