高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 152.

• Electroanalytical Chemistry • 上一篇    下一篇

Potentiometry of Extraction Kinetics in Oils (Fatty Acids) Aqua-Ethanol-Reagent Systems and Problems of Acid Number Determination

Ruvinskii O. E., Vyskubova Ye. N., Sharudina S. Ya.   

  1. Kuban State University of Technology, Krasnodar, 350072, Russia
  • 出版日期:1999-12-31 发布日期:1999-12-31

Potentiometry of Extraction Kinetics in Oils (Fatty Acids) Aqua-Ethanol-Reagent Systems and Problems of Acid Number Determination

Ruvinskii O. E., Vyskubova Ye. N., Sharudina S. Ya.   

  1. Kuban State University of Technology, Krasnodar, 350072, Russia
  • Online:1999-12-31 Published:1999-12-31

摘要:

The extraction regularities have dramatic importance for purposes of the indirect pH potentiometric determination of acidic number in vegetable oils. This electroanalytical process includes the following steps:the mass transfer of fatty acids (steannic, oleininc et al) substantially through the oil - mixed solvent interface, and chemical interactions with participation of various reagents, namely, weak bases in excess or traces of strong bases, and redox - pairs of iodat - iodide ions, and any procedures of usual or automated potentiomeiric measurements.

Abstract:

The extraction regularities have dramatic importance for purposes of the indirect pH potentiometric determination of acidic number in vegetable oils. This electroanalytical process includes the following steps:the mass transfer of fatty acids (steannic, oleininc et al) substantially through the oil - mixed solvent interface, and chemical interactions with participation of various reagents, namely, weak bases in excess or traces of strong bases, and redox - pairs of iodat - iodide ions, and any procedures of usual or automated potentiomeiric measurements.

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