Английская Википедия:Chlorine perchlorate
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
References
Шаблон:Perchlorates Шаблон:Chlorine compounds Шаблон:Oxygen compounds
