Chemistry Homework Solutions
#22173
TLC and ethyl acetate
part A. Caffeine is soluble in ethyl acetate. Do you think that the purity of the product could be checked by TLC using ethyl acetate as an elution solvent? Explain. part b. To color spots on TLC plates for easier visualization after elution with solvent, the plates can be "developed" in a sealed chamber containing solid iodine. Explain how the solid-vapor equilibrium operates in this instance.
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