Title: Rapid Determination for Acidity of Aviation Oils by Thermometric Titration
Abstract: The acidity of aviation oils was quickly determined by thermometric titration technique. By adding a kind of thermometric titration indicator in aviation oil sample to indicate the temperature changes during the titration,the titration curve of temperature-titration volume could be drawn and then the acidity value of the sample was obtained.The reliability and accuracy of the results were verified by the benzoic acid with different concentrations which showed very good repeatability with the regression analysis Rof 0.99965(n=5)and the variance of Plower than 0.0001.The whole measuring process of thermometric titration lasted only 3-5min.This method provided a good way to determine acidity of colored or additive-containing petroleum oils,such as lubrication oil,hydraulic oil,gasoline,kerosene and diesel,which resolved efficiently the problem of endpoint determination in potentiometric titration and color indicator titration.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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