Check out myst32yt's video on the process he used, he is a wonderful chemist and a great thinker and definitely qualifies as a genius by definition. In this video roughly 70ml of toluene and 40g of potassium permanganate dissolved in as much water as needed is added to a flask equipped for adequate refluxing conditions and refused for the time required to completely react the materials, for me it was about six hours but according to myst32yt it can take as little as 2.5 hours which may explain my MnO2 being of a different oxidation state. The process yielded me a total of 12.6 grams of extremely high purity benzoic acid but I must admit my 'wash' water was not chilled and in fact warm because I took it from my cooling water which had warmed so please assume that more product would have been attained had I chilled my wash water. I did not recover any of the MnO2, instead it was brought to the Eco-station like all of my non-recyclable or extractable lab wastes because I had already extracted 2.5 kilograms from about 300 AA batteries (thanks Chris, we need to chill bro!) and the extra MnO2 would just take up room beyond my capacity. It was a tricky experiment because it requires some very vigorous filtering and a lot of patience.
SCIENTIAE@UJ -- The Science Association from the Faculty of Sciences -- aims to promote an interest in the natural sciences under learners and to expose them to the wonders of natural sciences. Any school can participate in the meetings arranged by SCIENTIAE@UJ. Learners attended a practical on Chemistry Separation and attended an excursion to Melville Koppies with SCIENTIAE@UJ. For more information on the programme please visit SCIENTIAE@UJ website.
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