... , and this mixture, called "KA oil" for ketone-alcohol oil, is the main feedstock for the production of adipic acid. The oxidation ... converted to adipic acid, one of two precursors for nylon 6,6. For this application, the KA oil (see above) is oxidized with ... is only moderately toxic, with a TLV of 25 ppm for the vapor. It is an irritant.A recent study of ...