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Organic Chemistry: Separation and Purification Scheme How do I isolate a mixture of 1,4-dibromobenzene from methyl...

Organic Chemistry: Separation and Purification Scheme

How do I isolate a mixture of 1,4-dibromobenzene from methyl chloride? Can I use the following reagents or is there a technique I should consider to separate these two?

The reagents available are: 1M NaOH, 6M NaOH, 1M HCl, 6M HCl, 1M NaHCO3, saturated sodium chloride, diethyl ether, 95% ethanol, methanol, isopropyl aochol, acetone, hexane, toluene, methylene chloride, and granular anhydrous sulfate.

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Answer #1

We can separate the mixture of compounds based upon their solubility difference. Here, 1,4-dibromobenzene is soluble in diethyl ether whereas methyl chloride is insoluble in it. Thereore, mixture of compounds is taken and diethyl ether is added to it. Afterwards, mixture if poured into separating funnel and shaked vigorously. Layer of methyl chloride being denser comes at the bottom and layer of diethyl ether containing 1,4-dibromobenzene comes at the top. Afterwards, botrh the layers are separated and diethyl layer is taken into round bottom flask after passing through anhydrous sulphate and put on rotaevaporator which gives the compound in round bottom flask.

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