Artículos de revistas
Surface tension of fatty acids and triglycerides
Registration in:
Journal Of The American Oil Chemists Society. Amer Oil Chemists Soc A O C S Press, v. 76, n. 3, n. 379, n. 382, 1999.
0003-021X
WOS:000079436300014
10.1007/s11746-999-0245-6
Author
Chumpitaz, LDA
Coutinho, LF
Meirelles, AJA
Institutions
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. 76 3 379 382