Tuesday, April 8, 2014

My 1st Publication : Study the Effect of Imposing Surfactants toward the Evaporation of Low Molecular Weight Alcohol

Study the Effect of Imposing Surfactants toward the Evaporation of Low Molecular Weight Alcohol

IJESD 2013 Vol.4(4): 403-407 ISSN: 2010-0264 
DOI: 10.7763/IJESD.2013.V4.381

H.H. Mohammad, Sharifuddin Mohd Zain, Rashid Atta Khan, and Khalisanni Khalid
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 former’s 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.

Index Termsflow gas-chromatographylow-solubility contaminantsmass-transfer coefficientsdiffusion coefficients, water bodiespure liquidsinterfaceratesretardationatmosphere, Reversed-Flow Gas Chromatography (RF-GC)

H.H. Mohammad, S. M. Zain, and R. A. Khan are with the Chemistry Department University of Malaya, K.L., Malaysia (e-mail: enal_fifi@yahoo.com; smzain@um.edu.my; dr_rashid@um.edu.my).
K.i Khalid was with Chemistry Department University of Malaya, K.L., Malaysia. He is now with Food and Agricultural Analysis Laboratory Program, Technical Service Centre, Malaysian Agricultural Research and Development Institute (MARDI), 43400 Serdang, Selangor, Malaysia. (e-mail: typhloids@hotmail.com).
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Cite:H.H. Mohammad, Sharifuddin Mohd Zain, Rashid Atta Khan, and Khalisanni Khalid, "Study the Effect of Imposing Surfactants toward the Evaporation of Low Molecular Weight Alcohol," International Journal of Environmental Science and Development vol. 4, no. 4, pp. 403-407, 2013.