溴酸鹽
溴酸鹽是溴酸形成的鹽類,含有三角錐型的溴酸根離子—BrO3−,其中溴的氧化態為+5。溴酸鹽(如溴酸鋇、溴酸銀等)都可溶於水,一些鹼式鹽除外。[1]
溴酸鹽 | |
---|---|
識別 | |
CAS號 | 15541-45-4 |
PubChem | 84979 |
ChemSpider | 76658 |
SMILES |
|
ChEBI | 29223 |
性質 | |
化學式 | BrO3− |
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。 |
製備
- Br− + O3 → BrO3−
實驗室中,溴酸鹽可通過將溴單質溶於氫氧化物濃溶液中製得,如:
- Br2 + 2OH− → Br− + BrO− + H2O
- 3BrO− → BrO3−+ 2Br−
安全性
溴酸鹽被認為是可能的致癌物質,其中溴酸鉀的評級為2B類。[2][3]飲用水在用臭氧消毒時,會將其中的溴化物氧化為溴酸鹽。[4]Dasani瓶裝水由於檢測出有溴酸鹽而在英國被產品召回。[5]
參考資料
- ^ Prescott, A.B.; Johnson, O.C. Qualitative Chemical Analysis: A Guide in Qualitative Work, with Data for Analytical Operations and Laboratory Methods in Inorganic Chemistry. D. Van Nostrand Company. 1901: 349 [2021-11-27]. (原始內容存檔於2021-11-27).
- ^ Potassium Bromate (Group 2B). International Agency for Research on Cancer: Summaries and Evaluations. Canadian Centre for Occupational Health and Safety. [2008-03-09]. (原始內容存檔於2017-06-30).
- ^ Kurokawa, Yuji. Toxicity and carcinogenicity of potassium bromate--a new renal carcinogen. Environmental Health Perspectives. July 1990, 87: 309–335 [2008-03-09]. doi:10.2307/3431039.
- ^ Bromate in Drinking Water - Information Fact Sheet. health.ny.gov. 2017-07 [2024-07-17]. (原始內容存檔於2024-08-23).
- ^ Coke recalls controversial water. BBC News. 2004-03-19 [2008-03-09]. (原始內容存檔於2017-09-01).