Publisher's Synopsis
Excerpt from Investigation of the Alkaloid Content of Some South American Barks
A liter flask was used. In this fla k one hundred cubic centimeters of water and one hundred grams d'cane and heated on the steam bath for twenty hours, with a condenser attached to the flask. After this time the mixture was filtered and the residue boiled with one hundred cubic centimeters of water and filtered also To the combined filtrates thirtyofive grams of sodium hydroxide were added in solution. This alkaline solution was svanorated to about one hundred cubic centimeters, filtered and extracted five times with fifty cubic centimeter nortions of ether. The ether was distilled off. The residue was distilled under diminished oressure, and the fraction boiling at l40 l6o dearess centigrade and twenty-five millimeters pressure was collected. The distillate was frozen in a wide mouth bottle. The watery residue was separated and the res warmed to room temnerature and weighed. The first trial gave twelve grams of levulinic acid, and the Second one seventeen.
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