Sodium bromate explained

Sodium bromate, the inorganic compound with the chemical formula of NaBrO₃, is the sodium salt of bromic acid. It is a strong oxidant.

Uses

Sodium bromate is mainly used in continuous or batch dyeing processes involving sulfur or vat dyes and as a hair-permagent, chemical agent, or gold solvent in gold mines when used with sodium bromide.

Production

Sodium bromate can be produced from a solution of sodium carbonate and bromine using chlorine gas as the oxidising agent.^[1]

6 Na2CO3 + Br2 + 5 Cl2 -> 2 NaBrO3 + 10 NaCl + 6 CO2

It may also be produced by the electrolytic oxidation of aqueous sodium bromide.^[2]

Human health issues

Bromate in drinking water is undesirable because it is a suspected human carcinogen.^{[3] [4]} Its presence in Coca-Cola's Dasani bottled water forced a recall of that product in the UK.^[5]

External links

• Sodium Bromate MSDS On The Wayback Machine: December 6 2018

Notes and References

1. CN. 1034653C. patent. Zhao Naizhi; Wu Zongsheng; Sun Guishi. Daqinghe Saltern Changlu Hebei Prov.. 1994-09-24. 1997-04-23.
2. WO. 1996030562A1. patent. David B. Blum; Rodney H. Sergent; Vadim Zolotarsky. Electrocatalytic Inc. Process and apparatus for generating bromine. 1996-03-19. 1996-10-03. 1996-03-19.
3. Web site: Potassium Bromate (Group 2B). International Agency for Research on Cancer

   Summaries and Evaluations

   . Canadian Centre for Occupational Health and Safety. 2008-03-09.
4. 1567851. Toxicity and carcinogenicity of potassium bromate—a new renal carcinogen. Environmental Health Perspectives. July 1990. 87. 309–35. 10.1289/EHP.9087309. Kurokawa. Yuji. 2269236. Maekawa. A. Takahashi. M. Hayashi. Y. 3431039.
5. News: Coke recalls controversial water. BBC News. 2004-03-19. 2008-03-09.