distillation against reflux
What distillation against reflux means in Chemistry A-Level, as defined for AQA.
Definitions of distillation against reflux
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Reference: AQA
Distilling the aldehyde off as it forms stops at the aldehyde, while heating under reflux with excess oxidising agent reaches the carboxylic acid.
Distillation as the aldehyde forms gives the aldehyde, while reflux with excess oxidant gives the acid.
Topics that use distillation against reflux
- Oxidation of alcohols (AQA A-Level)
Related terms
- acidified potassium dichromate(VI)
- carbon–carbon bond too strong
- hydrogen on the carbonyl carbon
- ketone product
- no colour change
- no hydrogen on the hydroxyl carbon
- secondary alcohol oxidation
- tertiary alcohols
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