The Chemistry and Pharmacy of Botanical Medicines by Dickson Charles
Author:Dickson, Charles
Format: epub
Publisher: Chemical Publishing Company
Published: 2015-12-22T05:00:00+00:00
Figure 61. Phenylacetaldehyde molecule
Tollens’ Test: Place 2 ml of Phenylacetaldehyde in a test tube and add 2 ml of a 5% solution of silver nitrate and a few drops of 0.1 M sodium hydroxide solution. Then add, drop by drop, a dilute solution of ammonium hydroxide solution while constantly shaking. Some elemental silver will begin to show in the solution as evidence of the presence of an aldehyde. RCHO + Ag20 → 2Ag + RCOOH
Schiff’s Test: Place 2 ml of Phenylacetaldehyde in a test tube and add a few drops of Schiff’s Reagent. A brilliant magenta appears as proof of an aldehyde.
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