. The Alumni journal. Columbia University. College of Pharmacy; Pharmacology. THE ALUMNI JOURNAL MIXING THE LAST DOSE FOR Courtesy of^'PhurniaceuticalEra' and "The Trenton, Evening Times'. DIFFERENTIATING ALPHA- AND BETANAPHTHOLS. To differentiate alphanaphthol from betanaphthol, Volcy-Boucher (, xxiii., p. 522) advocates the following test: Dissolve Gm. of the naphthol in the smallest quantity of 95 per cent, alcohol required for solution, and then add 2 Cc. of a 10 per cent, copper- sulphate solution and 4 Cc. of a freshly prepared lo per cent, potassium-
. The Alumni journal. Columbia University. College of Pharmacy; Pharmacology. THE ALUMNI JOURNAL MIXING THE LAST DOSE FOR Courtesy of^'PhurniaceuticalEra' and "The Trenton, Evening Times'. DIFFERENTIATING ALPHA- AND BETANAPHTHOLS. To differentiate alphanaphthol from betanaphthol, Volcy-Boucher (, xxiii., p. 522) advocates the following test: Dissolve Gm. of the naphthol in the smallest quantity of 95 per cent, alcohol required for solution, and then add 2 Cc. of a 10 per cent, copper- sulphate solution and 4 Cc. of a freshly prepared lo per cent, potassium- c\anide solution, and shake thoroughly. With alphanaphthol a violet- red precipitate forms, while betanaphthol gives rise to a yellow one. On now adding enough 95 per cent, alcohol to just effect solution, a rose-red or violet colored solution is afforded by alphanaphthol, while with betanaphthol the solution is a golden-yellow. The reaction is said to afford evidence of the presence of one naphthol in the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Columbia University. College of Pharmacy. Alumni Association. [New York] : Alumni Association, College of Pharmacy of the City of New York, Pharmaceutical Dept. of Columbia University
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Keywords: ., bookcollectionbiodiversit, booksubjectpharmacology, bookyear1913
