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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: malik123 on August 10, 2014, 07:49:11 AM

Title: Na2S2O3.5H2O 0.01 N Standardization by KIO3
Post by: malik123 on August 10, 2014, 07:49:11 AM

Dears ,
I need a test method to do Standardization for Sodium Thiosulphate 0.01 N by KIO3 . Can somevody help me ?

Title: Re: Na2S2O3.5H2O 0.01 N Standardization by KIO3
Post by: Hunter2 on August 10, 2014, 08:12:09 AM

Google found this:

http://www.denverinstrument.com/denverusa/media/pdf/titration_notes/chemical/Calibration_of_a_Thiosulphate_Solution.pdf

Title: Re: Na2S2O3.5H2O 0.01 N Standardization by KIO3
Post by: malik123 on August 10, 2014, 08:14:51 AM

Dear ,
Thanks a lot for your replay but i need 0.01 N not 0.1 N . Thnaks again .

Title: Re: Na2S2O3.5H2O 0.01 N Standardization by KIO3
Post by: Hunter2 on August 10, 2014, 08:16:22 AM

I think you should able to use a calculator or not. It is 10 times diluted. Or other way around use a 10 times larger volume.

Title: Re: Na2S2O3.5H2O 0.01 N Standardization by KIO3
Post by: malik123 on August 10, 2014, 08:23:46 AM

Ok , i will try 10 times diluted firstly . Thanks a lot .

Title: Re: Na2S2O3.5H2O 0.01 N Standardization by KIO3
Post by: Borek on August 10, 2014, 02:06:26 PM

http://www.titrations.info/iodometric-titration-standardization