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What are some possible explanations to why melting point of your isolated caffeine was lower than the literature value?
Wiki User
∙ 14y ago
Melting points should always be reported as a range.
Maybe during purification process was not perfect, and there were impurities in the caffeine that were affecting the melting point. The melting point is depressed due to impurities in the sample. The caffeine is usually not 100% pure, maybe improper isolation procedure and also the impurity is likely solvent.
Wiki User
∙ 14y ago
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