Decomposition of 2-bromophenol in NaOH solution at high temperature

Miho Uchida, Masaaki Furusawa, Akitsugu Okuwaki

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

2-Bromophenol was reacted in aqueous sodium hydroxide at 200-250°C. The decomposition rate was remarkably faster at 250°C than at 225 or 200°C, and the percentage debromination reached almost 100% in 1M NaOH at 250°C for 4h. The percentage increased with NaOH concentration over the range 0.1-1M. Aliphatic compounds, such as 2,2-dimethoxypropane and 4-hydroxy-4-methyl-2-pentanone, and aromatic compounds, such as phenol and cresol, were formed as decomposition products. The formation of carboxylic acids, such as formic, acetic, and propionic acids, in the presence of oxygen was also confirmed. Under a nitrogen atmosphere, the oxidation caused by oxygen in solution was suppressed and hydrolysis became the dominant reaction in the decomposition of 2-bromophenol.

Original languageEnglish
Pages (from-to)231-238
Number of pages8
JournalJournal of Hazardous Materials
Volume101
Issue number3
DOIs
Publication statusPublished - 2003 Aug 1

Keywords

  • 2-Bromophenol
  • Alkaline solution
  • Debromination
  • Fire retardant
  • High temperature

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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