1) In oxidation using Potassium dichromate, why does it have to be acidified?
2) When we oxidise a primary alcohol using heat and then distill we get an aldehyde so this is partial oxidation; but if we want a carboxylic acid we must heat under reflux with oxidising agent; so is it possible to get carboxylic acid from primary alcohol and NOT heating under reflux but instead heat then distill..??
Thanks in advance!!
Organic Chemistry?
2016-05-30 10:52 pm
回答 (1)
2016-05-30 11:00 pm
✔ 最佳答案
1)Potassium dichromate acts as a strong oxidizing agent to give chromium(III) ions only when the solution is strongly acidic. Therefore, potassium dichromate solution used must be acidified.
2)
No, it is impossible to obtain carboxylic acid by heating and then distillation.
This is because prolonged heating must be necessary in converting a primary alcohol to carboxylic acid.
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