To get the last little bit of water and other insoluble junk out of the toluene, we're going to dry it and pass it through a filter. Add a small amount of table salt to the toluene and stir it up really well. This helps to sequester water and dry the toluene. In a chemistry lab, you would use magnesium sulfate for this purpose.* If you can get hold of that, even better.
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