Document Type
Article
Publication Date
8-1-2013
Abstract
In this paper, Reversed-Flow Gas Chromatography (RF-GC) is utilized to investigate the evaporation of low molecular weight alcohol. Evaporation rates as well as the diffusion rates of methanol are determined with a surfactant monolayer on the surface of the liquid; while nitrogen acts as carrier gas, at 313 K. The precision (>99.9) and accuracy of this investigation demonstrates the potential of current methodologies for environmental impact studies; this is further verified when the results are compared with the available literature. The varying evaporation rates of methanol in the presence of varying amounts of Triton X-100 reflects that application of surfactants do damper the evaporation rates of liquid pollutants; without interference with the formers diffusion coefficients. High amounts of Triton X-100 are required for retardation of evaporation rates, suggesting the formation of a densely packed surface monolayer or the formation of an insoluble monolayer.
Keywords
Flow gas-chromatography low-solubility contaminants mass-transfer coefficients diffusion-coefficients water bodies pure liquids interface rates retardation atmosphere Reversed-Flow Gas Chromatography (RF-GC)
Divisions
CHEMISTRY
Publication Title
International Journal of Environmental Science and Development
Volume
4
Issue
4
Publisher
International Association of Computer Science and Information Technology Press (IACSIT Press)