DETERMINATION THE ACIDITY OF COLOURED OILS BY CATALYZED THERMOMETRIC TITRIMETRY

Jian-Qiang Hu, Yong-Guo Zhang, Huan-Qinqin Zhu, Shi-Zhao Yang

Abstract

Catalytic thermometric titrition has been developed for the determination of the acidity of oils. The amounts of oil, concentration and delivery rate of titrant, volumes and types of thermometric indicator were investigated. The results show that mixture of acetone and chloroform used as indicator exhibits strongly exothermic effects to reflect end point obviously. The method is fast, easy to use, accurate, and highly reproducible to measure lower acidity in non-coloured and coloured oils.

Keywords

acidity, coloured oil, catalytic thermometric titrimetry, determination

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IMEKO-WC-2015-TC24-462.pdf

DOI

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IMEKO TC

TC24 - Chemical Measurements

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