Chemistry A-Level
acid anhydride
What acid anhydride means in Chemistry A-Level, as defined for AQA.
Definition of acid anhydride
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Reference: AQA
Two acyl groups sharing a single oxygen, (RCO)₂O, left when two acid molecules lose one molecule of water between them, hence ethanoic anhydride.
Topics that use acid anhydride
- Acylation (A-level only) (AQA A-Level)
Related terms
- addition-elimination
- amide
- ammonium salt formation
- atom economy
- by-product handling
- Curly arrow conventions
- drying agents
- industrial choice of reagent
Using acid anhydride in the exam
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