Английская Википедия:Chlorine perchlorate

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Шаблон:Chembox

Chlorine perchlorate is a chemical compound with the formula Cl2O4. This chlorine oxide is an asymmetric oxide, with one chlorine atom in +1 oxidation state and the other +7, with proper formula ClOClO3. It is produced by the photodimerization of chlorine dioxide (ClO2) at room temperature by 436 nm ultraviolet light:[1][2][3]

2 ClO2 → ClOClO3

Chlorine perchlorate can also be made by the following reaction at −45 °C.

CsClO4 + ClOSO2F → Cs(SO3)F + ClOClO3

Properties

Chlorine perchlorate is a pale greenish liquid. It is less stable than ClO2 (chlorine dioxide)Шаблон:Cn and decomposes at room temperature to give O2 (oxygen), Cl2 (chlorine) and Cl2O6 (dichlorine hexoxide):

2 ClOClO3 → O2 + Cl2 + Cl2O6

Chlorine perchlorate reacts with metal chlorides to form chlorine and the corresponding anhydrous perchlorate:

CrO2Cl2 + 2 ClOClO3 → 2 Cl2 + CrO2(ClO4)2
TiCl4 + 4 ClOClO3 → 4 Cl2 + Ti(ClO4)4
2 AgCl + 2 ClOClO3 → 2 AgClO4 + Cl2

Reactions

Reactant Conditions Products
Heat dichlorine hexoxide (80%), chlorine dioxide, chlorine, oxygen
Ultraviolet light dichlorine heptoxide, chlorine, oxygen[3]
caesium iodide −45 °C Cs[I(OClO3)4]Шаблон:NoteTag
ClOSO2F or ClF MClO4(M = Cs or NO2)Шаблон:NoteTag
bromine −45 °C bromine perchlorate (BrOClO3)Шаблон:NoteTag
iodine(0.33 mol) −50 °C I(OClO3)3Шаблон:NoteTag

Notes

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References

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Шаблон:Perchlorates Шаблон:Chlorine compounds Шаблон:Oxygen compounds