![]() Fit a reflux condenser to the flask, and heat the latter on a gauze so that the mixture boils gently for 45 minutes. 16ml (30g) of concentrated sulfuric acid, keeping the liquid in the flask well shaken throughout the addition to ensure thorough mixing. ![]() Place 40ml (32g) of rectified spirit in a 250ml round-bottomed flask, and slowly add. The solution of sodium ethyl sulfate can be concentrated on the water-bath without appreciable hydrolysis, and the sulfate finally crystallized out. The aqueous filtrate is then mixed with just sufficient sodium carbonate to give sodium ethyl sulfate, the insoluble calcium carbonate being now filtered off. The ethyl hydrogen sulfate is converted into the soluble calcium ethyl sulfate, whilst the excess of H2SO4 is removed as insoluble calcium sulfate. To prepare the sodium salt of ethyl hydrogen sulfate, a mixture of alcohol and H2SO4 is boiled under reflux, cooled, and an excess of calcium carbonate is added. The nitromethane is then re-distilled, collecting the fraction between 114-116☌. The heating is discontinued when the distillation flow slackens considerably, and the crude nitroethane is washed with an equal amount of water, dried over CaCl2, and if needed, decolorized with a little activated carbon. The mixture is then heated to 125-130☌, at which temperature the nitroethane distills over as soon as it is formed. ![]() Nitroethane from Sodium Ethyl Sulfate ġ.5 mole sodium nitrite (103.5g) is intimately mixed with 1 mole of sodium ethyl sulfate (158g) and 0.0625 moles of K2CO3 (8.6g). Easiest way to amphetamine in the kitchen+FentanylĮasiest way to amphetamine in the kitchen. ![]()
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