Diethyl ether and methylene chloride are generally not suitable for use in recrystallization, but are frequently used as extraction solvents. Explain
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Diethyl ether and methylene chloride are generally not suitable for use in recrystallization, but are frequently used as extraction solvents. Explain
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- Acetone and isopropyl alcohol are generally not suitable for use in extraction, but are frequently used as recrystallization solvents. ExplainWhy can't a mixture of water and diethyl ether be used for recrystallization?We want to extract terpenoids from an aqueous sample by continuous liquid-liquid extraction. Which of the following solvents is not suitable for this purpose? Why? Propanone (acetone), dichloromethane, heptane.
- Why is methanol chosen as the solvent for recrystallization? What would happen if the student uses dichloromethane instead?Give a clear explanation answer Given A naphthalene sample is contaminated with a small amount of sodium chloride. Comment on each solvent: toluene, chloroform, and water, which is the best solvent for recrystallization for purifying the sample?In which case you would used a mic solvent recrystallization? Explain, give an example
- Why is it more difficult to recrystallize benzil when using hexane as a solvent instead of ethanol?Why is 95% alcohol a good solvent for extraction?Propose an efficient separation and recovery scheme for a mixture of toluene, benzoic acid, andaniline. Consider that steam distillation is not an option.
- Some procedures include the addition of sodium carbonate before liquid-liquid extraction. What is the purpose of this step?What is the purpose of washing the crude product with petroleum ether before filtration?The method of extraction for Roman chamomile is: Choose one answer. a. cold-press extraction b. steam distillation c. water distillation d. solvent extraction