Complexometric extraction-based technique for the extraction of 6-Nitro-1 and 2-Azoxynaphthalene-4-Sulfonic acid

Shi Yu Tan, Jian Fu Luo, Ming Zhou, Jingzheng Ren

Research output: Journal article publicationJournal articleAcademic researchpeer-review


A complexometric extraction method of extracting 6-nitro-1 and 2-azoxynaphthalene-4-sulfonic acid in its mother solution is studied. At the room temperature, taking 30% (v) trioctylamine (N-235) chloroform solution as an extractant, when the extractant and mother solution volume ratio is 1:1 and extracting 60 minutes, the extraction yield can reach 96.1%. Using 12% (m) NaOH solution as a strip agent, when the organic phase and strip agent volume ratio is 2:1 and stripping 60 minutes, the strip yield can reach 94.3%.
Original languageEnglish
Pages (from-to)1193-1196
Number of pages4
JournalChongqing Daxue Xuebao/Journal of Chongqing University
Issue number10
Publication statusPublished - 1 Oct 2009
Externally publishedYes


  • 6-nitro-1, 2-azoxynaphthalene-4-sulfonic acid
  • Chloroform
  • Complexometric extraction
  • Extract
  • Trioctyla-mine

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Civil and Structural Engineering
  • Materials Science (miscellaneous)
  • Electrical and Electronic Engineering

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