Hexane

About: Hexane is a research topic. Over the lifetime, 3759 publications have been published within this topic receiving 57996 citations. The topic is also known as: CH3-[CH2]4-CH3 & hexyl hydride.

Densities and viscosities of binary mixtures of tributyl phosphate with hexane and dodecane from (298.15 to 328.15) K

Abstract: Densities and viscosities of the binary mixtures of the tributyl phosphate + hexane and tributyl phosphate + dodecane systems have been experimentally determined at different temperatures and atmospheric pressure, over the entire composition range. Other mixing properties such as the excess molar volumes and the viscosity deviations have been also obtained for each of the systems. The excess molar volumes (V (E)) and viscosity deviations (Delta eta) have been fitted to the Redlich-Kister equation, and the coefficients and estimate of the standard error values are presented. A discussion on these quantities in terms of molecular interactions is reported.

Hexane and heptane as extraction solvents for cottonseed: A laboratory-scale study

Abstract: For many years, commercial-grade hexane has been the preferred solvent for extracting oil from cottonseed. Recent environmental and health concerns about hexane may limit the use of this solvent; therefore, the need for a replacement solvent has become an important issue. Heptane is similar to hexane, but does not have the environmental and health concerns associated with the latter. On a laboratory scale, delinted, dehulled, ground cottonseed was extracted with hexane and heptane. The solvent-to-meal ratio was 10:1 (vol/wt). The yield and quality of the oil and meal extracted by heptane were similar to that extracted by hexane. Extraction temperature was higher for heptane than for hexane. A higher temperature and a longer time were required to desolventize miscella from the heptane extraction than from the hexane extraction. Based on these studies, heptane offers a potential alternative to hexane for extracting oil from cottonseed.