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1 From the Department of Medicine, Stanford University School of Medicine
The concentration of alcohol in solutions may be accurately determined by vacuum distillation of the sample off of anhydrous sodium sulphate at a temperature of 50 to 55 degrees C. into a solution of potassium dichromate in strong sulphuric acid, and the determination of the amount of dichromate reduced by photoelectric colorimetry.
Submitted on December 15, 1941