Citation: Quan Min LI, Hai Xin BAI, Wen Ying LÜ. Indirect Determination of CTMAB with Sodium Chloride and Ammonium Thiocyanate by Floatation and Separation of Zinc[J]. Chinese Chemical Letters, ;2003, 14(3): 290-293. shu

Indirect Determination of CTMAB with Sodium Chloride and Ammonium Thiocyanate by Floatation and Separation of Zinc

College of Chemistry and Environmental Science, Henan Normal University, Key Laboratory of Environmental Science and Engineering Education Commission of Henan Province, Xinxiang 453002

Received Date: 16 May 2002

A new method for indirect determination of cetyl-trimethyl ammonium bromide (CTMAB) with NaCl and NH₄SCN by floatation and separation of zinc has been studied. The study shows that Zn(Ⅱ) can associate with NH₄SCN and CTMAB to form insoluble ternary ion-association complex, and the precipitate can float on the surface of the liquid phase. A good linear relationship is observed between the floatation yield (E%) of Zn(Ⅱ) and the amount of CTMAB. On the ground, CTMAB can be indirectly determined by determining E% of Zn(Ⅱ). The results were satisfactory.
- Cetyl-trimethyl ammonium bromide,
- ammonium thiocyanate,
- floatation,
- zinc
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