So far all ustfe-ing has only showed me one post on this although many bees talk about this easy synth. It states 3 parts antifreeze to 1 parts 30% H2SO4 and distill off 1/3 volume. Can anyone point me to some better (for newbie) writeups on this? My main question is dioxane is supposed to be made by dilute sulfuric acid and ethylene glycol reflux. However antifreeze has diethylene glycol also (I have no idea of the %) Should this be separated first? The destination of this dioxane will bee for the bromination step of Ketamine. Any help will be vastly appreciated.