Hey there! Sign in to join this conversationNew here? Join for free

Why is ethanoic anhydride preferred over ethanol can acid to make esters? Watch

    • Thread Starter

    I know one reason is that ethanoic acid with an alcohol is a reversible reaction but does anyone know any other reasons?
    •  Official Rep

     Official Rep
    Sorry you've not had any responses about this.

    Why not try posting in a specific subject forum- you might have more luck there.

    Here's a link to our subject forum which should help get you more responses.


    Ethanoic anhydride is more reactive than ethanoic acid; the reaction might go faster, I guess. I think the non-reversibility is probably what makes it appealing to industry, on the whole.

    (Why does it say "ethanol can acid" in the title?)

    Hi AqsaMx

    I firstly believe you have miss typed your thread title and it should be ethanoic acid rather than ethanol and? Well I hope so anyways.

    The only advantage I can think of would be you could do this in a test tube without using concentrated sulfuric acid. If you add the anhydride and alcohol to a test tube, and warm it this should be enough to form some of your ester. You can then choose distillation etc. if necessary. Your title also says why is it preferred - sadly my first question there is "says who?". If you want a alternative and perhaps faster way to produce an ester then you could use an acyl chloride, but be aware you will get fumes of HCl given off which can be quite dangerous.

    I hope that helps - you could always check out my website for more help www.scienceskool.co.uk

  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you rather give up salt or pepper?
    Help with your A-levels

    All the essentials

    The adventure begins mug

    Student life: what to expect

    What it's really like going to uni


    Essay expert

    Learn to write like a pro with our ultimate essay guide.

    Uni match

    Uni match

    Our tool will help you find the perfect course for you

    Study planner

    Create a study plan

    Get your head around what you need to do and when with the study planner tool.

    Study planner

    Resources by subject

    Everything from mind maps to class notes.

    Hands typing

    Degrees without fees

    Discover more about degree-level apprenticeships.

    A student doing homework

    Study tips from A* students

    Students who got top grades in their A-levels share their secrets

    Study help links and info

    Can you help? Study help unanswered threadsRules and posting guidelines

    Sponsored content:



    Find out how a Higher Education Achievement Report can help you prove your achievements.

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Write a reply...
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.