Sparkles asked in HealthOther - Health · 1 decade ago

why does aspirin smell like vinegar when it goes bad? where does it come from?

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  • 1 decade ago
    Favorite Answer

    Aspirin is the generic/brand term for the chemical acetylsalicylic acid (ASA). It's available in various forms, but usually the vinegar-like smell is most noticeable in tablets of higher concentrations.

    ASA is produced by taking salicylic acid acetylating it with acetic anhydride. This chemical process yields the aspirin itself along with a byproduct of acetic acid.

    The key component of vinegar is acetic acid. :)

    You mentioned the vinegar smell when aspirin "goes bad", or in very old aspirin. Tablets (especially in higher concentrations) of aspirin can basically go through the reverse process after exposure to moisture.

    Once this spontaneous degradation begins, salicylic acid and acetic acid are produced as the ASA breaks down, and become the catalyst for continued breakdown of more ASA . This can occur even in closed bottles after they've been opened previously. This breakdown process produces the vinegar smell due to the resulting acetic acid.

  • 5 years ago

    The expiration of aspirin that I have right now is up to 2017, but already smell like vinegar and the coated skin already fused with its aluminum that contain it. Is it already gone Bad? or it is just normal in an aspirin and still good with no problem to take,,

  • Anonymous
    5 years ago

    If your child has dandruff then you need to treat the problem and not just try to "fix" it with over the counter products that literally make these situations worse over time so that you become a perpetual consumer of their products. Most dandruff is a bacterial problem that can be cured when the bacteria is killed off. Using safe and ordinary products without chemicals is best. One remedy for killing dandruff is vinegar. Its acidic properties are fantastic for killing bacteria. Do not worry about the smell as it will go away once the hair is dry. The best apple cider vinegar is Bragg's as it contains the "mother" which means this vinegar has not been pasteurized so that it still has enzymes in it. You can buy this in any health food store for about $5.99 per quart. Apply pure apple cider vinegar to the scalp and work it into the roots of the hair. Allow the vinegar to stand for a half hour or a full hour before washing your hair. This will help to destroy the bacteria and fungus that cause dandruff and itchy scalp. If the vinegar is too strong for a small child, then buy virgin coconut oil (this is not refined, smells like fresh coconut). You can get virgin coconut oil from health food store. Apply to scalp and scrub dead skin with fingers or brush, then hold head under hot water in the shower for at least 15 minutes You should see immediate results that last 6 months to a year Virgin coconut oil has many used besides killing bacterial dandruff. I will leave you a link all about coconut oil. Coconut oil is expensive (plan to spend roughly $15.00), but it will last you quite sometime. And coconut oil has many uses that you will find for it from cooking with it to using it for many cosmetic purposes. It is a very healthy product to use in and on the body. You can also use lemon juice to rub into scalp, though this is not as strong as the vinegar. Leave on for several minutes and then rinse off. A barber suggested this after a friend had tried many of the store bought remedies for dandruff. Crush two aspirin and add to your normal amount of shampoo you use to wash your hair; wash hair with mixture and leave on for one to two minutes. Rinse well and wash again to ensure all the aspirin has come out. These simple but effective remedies will help clear up your son's dandruff. Make sure to scroll down to read all the information that is available in the references below. I hope all this helps your son!

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  • puls
    Lv 4
    4 years ago

    Acetic Acid Smell

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  • 6 years ago

    I think it smells like paper glue when it's fresh, so it only makes sense that something would smell stronger & worse when it expires.

  • 1 decade ago

    Part A - because aspirin have acidic properties, (acetylsalicylic acid).

    Part B - aspirin originated from the bark of the birch tree.

  • 4 years ago

    It is vinegar in solid form ...

  • KitKat
    Lv 7
    1 decade ago

    aspirin is made from salycylic acid which is also used to treat acne.

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