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    Home / Science lessons / Making Limewater Solution
    • Making Limewater Solution

      Making Limewater Solution

      Limewater is used in many science experiments and is easy to make on your own.

      1. Put 1 teaspoon of calcium hydroxide in a clean glass jar, up to 1 gallon in size. (Limewater is a saturated solution, which means there will be some extra chemical that doesn't dissolve. A teaspoon will result in a fully saturated solution whether you use a gallon jar or a smaller one.)
      2. Fill the jar with distilled or tap water.
      3. Shake the jar vigorously for 1-2 minutes, then let it stand for 24 hours.
      4. Being careful not to stir up the sediment, pour the clearer solution off the top of the jar through a clean coffee filter or filter paper.
      5. Repeat the filtering step if necessary to obtain a clear limewater solution. Store in a clean jar or bottle.

      When carbon dioxide is bubbled into limewater, calcium carbonate (CaCO3) is produced. It precipitates out as a white suspended solid, making the solution appear cloudy.

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    Comments




    By: jayant prakash
    Date: Jul 17, 2015

    a man can drink lime water ?

    [HST Adds:  Limewater is not safe to drink.  It is recommended to contact a doctor or poison control center if limewater is accidentally ingested.  Hope this helps!]


    By: xena
    Date: Mar 20, 2015

    How much distilled water should i add to the teaspoon?


    By: steve peacock
    Date: Feb 22, 2015

    ... and if you carry on blowing CO2 into the cloudy solution, it will eventually go clear again !  (as the milky calcium carbonate turns to soluble calcium bicarbonate).


    By: Alison
    Date: Oct 03, 2014

    this really helped me with my GCSE science homework. thank you so much!


    By: Tunde Ogunsina
    Date: May 24, 2014

    your information is well readable and comrehended.thank very much.hope to read more.