Tag : purity

TLC Assessment of the pH-dependent Separation of a Mixture

Written by Robert Objective The purpose of this experiment was to analyze the purity of the benzoic acid, p-nitroaniline, and anthracene that were separated by pH-dependent extraction in the previous lab.  Purity tests were done using Thin Layer Chromatogrphy (TLC) on a silica gel substrate.  TLC is a technique used for separating a mixture of compounds.  This is done by first dissolving the compound (assumed to be initially solid) in a solvent such as dichloromethane, and then using a Pasteur pipet […]