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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: p41nk1ll3r on November 19, 2016, 02:59:41 PM

Title: Extract salt from a solution
Post by: p41nk1ll3r on November 19, 2016, 02:59:41 PM
Hi,

I did an electrolysis with water and salt and now i got a solution of water, salt and sodium hypochlorite.
So my question is how do i extract the salt from the solution, so i get a clean water and sodium hypochlorite solution

Thanks,
p41nk1ll3r
Title: Re: Extract salt from a solution
Post by: AWK on November 19, 2016, 03:09:58 PM
Mixture of NaClO and NaCl is used directly. Purification is practically impossible at home.
Title: Re: Extract salt from a solution
Post by: p41nk1ll3r on November 19, 2016, 03:21:02 PM
Well okay

Thanks
Title: Re: Extract salt from a solution
Post by: Vidya on November 20, 2016, 11:33:30 PM
what is your aim?
To get the pure salt or to get water with hypochlorite?
You want only salt you can evaporate by heating solution and you will get only NaCl left as residue.
Title: Re: Extract salt from a solution
Post by: AWK on November 21, 2016, 03:36:52 AM
Quote from: Vidya on November 20, 2016, 11:33:30 PM

You want only salt you can evaporate by heating solution and you will get only NaCl left as residue.
What about thermal stability of NaOCl?
Title: Re: Extract salt from a solution
Post by: Vidya on November 21, 2016, 03:38:38 AM
NaOCl will break down on heating to Cl2(g) and NaCl ...so only NaCl will be left after evaporating water.
Title: Re: Extract salt from a solution
Post by: Enthalpy on November 21, 2016, 11:50:29 AM
Quote from: Vidya on November 21, 2016, 03:38:38 AM
NaOCl will break down on heating to Cl2 and NaCl
Doubt.