How can you tell if two compounds that you steam distilled are pure?
To determine if two compounds obtained through steam distillation are pure, you can employ a few methods:
1. Physical Properties: Compare the physical properties (odor, color, and appearance) of the obtained compounds to the known properties of the pure compounds. If they match, it suggests that the compounds are pure.
2. Boiling Point: Measure the boiling points of the obtained compounds and compare them to the known boiling points of pure compounds. If they closely match, it indicates the purity of the compounds.
3. Chromatography: Perform a chromatographic analysis, such as thin-layer chromatography (TLC) or gas chromatography (GC), to separate and identify the components of the obtained compounds. If each compound yields a single, distinct spot or peak on the chromatogram, it indicates purity.
4. Melting Point: Determine the melting points of the compounds and compare them with the known melting points of pure compounds. If they match, it suggests the compounds are pure.
It is important to note that these methods provide a preliminary indication of purity. To obtain more accurate and precise results, additional analytical techniques, such as spectroscopy or elemental analysis, may be required.