Densities and interfacial tensions for fatty acid methyl esters (from methyl formate to methyl heptanoate) + water demixed mixtures at atmospheric pressure conditions was written by del Pozo, Irene;Cartes, Marcela;Llovell, Felix;Mejia, Andres. And the article was included in Journal of Chemical Thermodynamics in 2018.Related Products of 106-73-0 The following contents are mentioned in the article:
Exptl. determination of mass densities and interfacial tensions (IFT) at liquid-liquid equilibrium (LLE) for Me ester (FAME) demixed aqueous family (from Me formate to Me heptanoate) are reported as a function of temperature at atm. pressure (101.3 kPa). Mass d. determinations are carried out in a vibrating tube densimeter, whereas a spinning drop tensiometer is used for performing IFT measurements. Furthermore, the IFT data have been correlated by using a simplified version of the Square Gradient Theory (SSGT) as applied to the Non-Random Two Liquids (NRTL) activity coefficient model. Based on the exptl. results, the mass densities of both aqueous and Me ester bulk phase decrease with temperature, whereas the IFT increases with the temperature and reaches a maximum value, which is related to the maximum tie line in the LLE. For higher temperatures, IFT starts to decrease with temperature The correlation approach of IFT (SSGT + NRTL) was found to be suitable for correlating the IFT of the mixtures as a function of temperature and also provides a route to explore other interfacial properties, such as interfacial concentration profiles, which are difficult to measure. Considering the results from the calculated interfacial profiles along the interfacial region, the components (FAMEs and water) neither exhibit surface activity nor adsorption activity and the interfacial width decreases with temperature, as it was expected. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Related Products of 106-73-0).
Methyl heptanoate (cas: 106-73-0) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Related Products of 106-73-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics