In chemistry, the perbromate ion is the anion having the chemical formula BrO−
4. It is an oxyanion of bromine, the conjugate base of perbromic acid, in which bromine has the oxidation state +7. Unlike its chlorine and iodine analogs (perchlorate and periodate), it is difficult to synthesize. It has tetrahedral molecular geometry.
The term perbromate also refers to a compound that contains the BrO−
4 anion or the –OBrO
3 functional group.
- 83SeO42− → 83BrO4− + β−
Subsequently, it was successfully synthesized again by the electrolysis of LiBrO
3, although only in low yield. Later, it was obtained by the oxidation of bromate with xenon difluoride. Once perbromates are obtained, perbromic acid can be produced by protonating BrO−
3 + F
2 + 2 OH−
4 + 2 F−
This synthesis is much easier to perform on a large scale than the electrolysis route or oxidation by xenon difluoride.
In 2011 a new, more effective synthesis was discovered: perbromate ions were formed through the reaction of hypobromite and bromate ions in an alkaline sodium hypobromite solution.
- Sodium perbromate, NaBrO4
- Egon Wiberg; Nils Wiberg; Arnold Frederick Holleman (2001). Inorganic chemistry. Academic Press. p. 439. ISBN 0-12-352651-5.
- W. Henderson (2000). Main group chemistry (Volume 3 of Tutorial chemistry texts). Royal Society of Chemistry. pp. 136–137. ISBN 0-85404-617-8.
- Kurt H. Stern (2001). High temperature properties and thermal decomposition of inorganic salts with oxyanions. CRC Press. p. 224. ISBN 0-8493-0256-0.
- Appelman, E. H. (1973). "Nonexistent compounds. Two case histories". Accounts of Chemical Research 6 (4): 113–117. doi:10.1021/ar50064a001.
- Appelman, E. H. (1968). "Synthesis of perbromates". Journal of the American Chemical Society 90 (7): 1900–1901. doi:10.1021/ja01009a040.
- Kenneth Malcolm Mackay; W. Henderson (2002). Rosemary Ann Mackay, ed. Introduction to modern inorganic chemistry (6th ed.). CRC Press. p. 488. ISBN 0-7487-6420-8.
- Egon Wiberg; Nils Wiberg; Arnold Frederick Holleman (2001). Inorganic chemistry. Academic Press. p. 395. ISBN 0-12-352651-5.
- Appelman, E. H. (1969). "Perbromic acid and perbromates: synthesis and some properties". Inorg. Chem. 8 (2): 223–227. doi:10.1021/ic50072a008.
|This inorganic compound–related article is a stub. You can help Wikipedia by expanding it.|