Question

1. In a Wet Column Chromatography experiment. My product does have two compounds. What type of solvent / solvent mixture should I use in my column to separate the two compounds? (A specific solvent is not needed, but you should clarify what properties the solvent have).

2. In Dehydration of 2-methylcyclohexanol experiment. Why I even have to dry my product now that I have already extracted all the water?

Answer 1

Solution :-

Q1) For the column chromatography the solvent must be vapolatile and unreactive with the components of the mixture.

The polarity of the solvent should be maintained so that the separation of the mixture component is done well.

Polar components of the mixture eluates firstly and then non polar components.

Q2)

In the dehydration of the methylcyclohexanol the product of the dehydration reaction is the alkene and water is given off.

Therefore is the water is remain in the product then it can again converts the alkene into the alcohol reactant. Therefore to avoid the backward reaction it is necessary to remove all the water by drying the product.