Document Type


Date of Award


Degree Name

Master of Science in Chemical Engineering - (M.S.)


Chemical Engineering and Chemistry

First Advisor

Dimitrios P. Tassios

Second Advisor

Ernest N. Bart

Third Advisor

Deran Hanesian


A modified Andrade4 equation, similar to the Antoine equation for vapor pressure-temperature correlations, was developed for liquid viscosity-temperature correlations. Included in the investigation were the following compounds: n-alkanes (C2-C20), n-alkenes (C2-C20), n-alkyl benzenes (C6-C10), n-alkyl cyclohexanes (C6-C22), and fifteen polar compounds. Except for propene, errors of less than 5% were obtained. Normal heptadecane was used to compare correlations developed by Andrade4, Walther20, and Doolittle9, with the modified Andrade equation. The latter was found to give the best correlations in fitting the data from the boiling point to the freezing point. Extrapolated viscosities from four known points were compared using the modified equation and the conventional method of plotting log of the viscosity against 1/T (absolute temperature). Six compounds were used in this comparison with the modified equation giving significantly better results near the freezing and boiling points. For the modified equation, errors of 0.3 to 7.3% were obtained as compared to errors of 0.4 to 16.7% for the conventional method.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.