Event Title

A Green Chemistry Alternative to Toluene in an Organic Acid Partition Teaching Lab Experiment

Presenter Information

Devyn Pulliam

Faculty Advisor

Wade Johnson

Start Date

24-4-2018 5:00 PM

End Date

24-4-2018 6:00 PM

Description

An alternative green chemistry titration for an oil/water organic acid partition was developed. In an equilibrium system, an organic acid, is dissolved in both a polar and non-polar solvent has the ability migrate from one liquid to another until equilibrium has been reached. The distribution of the organic acid is a measure of the binding affinity that the organic acid exhibits for either solvent. Toluene, an expensive, carcinogenic non-polar chemical was substituted for a less toxic, environmentally safe non-polar substance, vegetable oil. The organic acids, acetic, caproic and butyric, in equilibrium involving a polar solvent, water, and a non-polar solvent, vegetable oil, was studied. As expected, experimental results indicated that butyric acid exhibited greater affinity for oil than water compared to acetic acid. These results were consistent with the known behavior of acetic and butyric acids in an equilibrium system involving toluene and water suggesting a successful substitution.

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Apr 24th, 5:00 PM Apr 24th, 6:00 PM

A Green Chemistry Alternative to Toluene in an Organic Acid Partition Teaching Lab Experiment

An alternative green chemistry titration for an oil/water organic acid partition was developed. In an equilibrium system, an organic acid, is dissolved in both a polar and non-polar solvent has the ability migrate from one liquid to another until equilibrium has been reached. The distribution of the organic acid is a measure of the binding affinity that the organic acid exhibits for either solvent. Toluene, an expensive, carcinogenic non-polar chemical was substituted for a less toxic, environmentally safe non-polar substance, vegetable oil. The organic acids, acetic, caproic and butyric, in equilibrium involving a polar solvent, water, and a non-polar solvent, vegetable oil, was studied. As expected, experimental results indicated that butyric acid exhibited greater affinity for oil than water compared to acetic acid. These results were consistent with the known behavior of acetic and butyric acids in an equilibrium system involving toluene and water suggesting a successful substitution.