Removal of Temporary Hardness of Water

Temporary hardness of water can be removed easily. The following methods may be adopted for the removal of temporary hardness of water.

i ) By boiling:


boiling water

Boiling water

A soluble bicarbonate salt of calcium and magnesium becomes insoluble salt on heating. The insoluble salt settles at the bottom of boiler.
Calcium hydrogen   =  calcium    +     carbon    + water.
            carbonate            carbonate       dioxide
Ca(HCO3)2 = CaCO3 + CO2 + H2O

ii) Treatment with lime water :

Temporary hardness of water can be removed by treating with lime water. This is known as Clark’s method.
Carbonate + lime water = calcium carbonate + water
Ca (HCO3)2 + (Ca(OH)2  = CaCO3 + 2H2O
9 replies
  1. van cleef collier réplique
    van cleef collier réplique says:

    Too much hating on these forums these days. We used to give love to all site like this because it gives nice information.

  2. banty
    banty says:

    Write more, thats all I have to say. Literally, it seems as though you relied
    on the video to make your point. You obviously know what youre talking about, why
    throw away your intelligence on just posting videos to your blog when you could be giving us something enlightening to read?


Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *