Guard, H.Z., et al. “Influence of Amides and Salts on the Oxidation of Methyl Acetone and Ethyl Acetate by Potassium Dichromate”. Asian Journal of Chemistry, vol. 11, no. 4, Mar. 2010, pp. 1391-5, https://asianpubs.org/index.php/ajchem/article/view/23500.