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Type: Artigo de periódico
Title: Surface tension of fatty acids and triglycerides
Author: Chumpitaz, LDA
Coutinho, LF
Meirelles, AJA
Abstract: Surface tension as a function of temperature was measured for four fatty acids (lauric, myristic, palmitic, and oleic) and two triglycerides (tricaprylin and tripalmitin). These surface tension measurements were performed using a K12 vers. 3.1 (Kruss GmbH) tensiometer at temperatures from 20 (or the melting point of each substance) to 90 degrees C. The constants for a van der Waals-type correlation as well as for a linear equation are presented. Both equations are quite accurate, presenting mean deviations not exceeding 0.570%. Such correlation constants are valuable in the design or evaluation of processing equipment, especially that involving gas-liquid contact such as distillation and stripping columns, deodorizers, reactors, and equipment for physical refining.
Subject: fatty acids
surface tension
Country: EUA
Editor: Amer Oil Chemists Soc A O C S Press
Rights: fechado
Identifier DOI: 10.1007/s11746-999-0245-6
Date Issue: 1999
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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