Tuesday, August 17, 2010

Applied Separations and the "12 Principles of Green Chemistry": Safer Solvents and Auxiliaries

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. This week we will be addressing "Safer Solvents and Auxiliaries".

Green Chemistry Principle
Safer Solvents and Auxiliaries




EPAApplied Separations
The use of auxiliary substances (e.g., solvents, separation agents, etc.) should be made unnecessary wherever possible and innocuous when used.
Applied Separations SCF systems use supercritical CO2 to simulate solvents, eliminating or greatly reducing the need for solvents. Supercritical CO2 is “tunable” and is able to mimic solvents by adjusting the pressure. Change the pressure, and you change the density, which changes the solvating power.


For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html

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