October 28, 2020, 04:49:19 PM
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Topic: mixture of NaCl and Na2SO4  (Read 521 times)

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Offline kailash

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mixture of NaCl and Na2SO4
« on: June 05, 2020, 06:04:51 AM »
how to analyse sodium suphate in mixture of sodium chloride and sodium sulphate without gravimatric analysis. is there any analytical method?

Offline AWK

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Re: mixture of NaCl and Na2SO4
« Reply #1 on: June 05, 2020, 07:10:55 AM »
And what other methods of quantitative analysis do you know?
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Offline kailash

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Re: mixture of NaCl and Na2SO4
« Reply #2 on: June 06, 2020, 01:37:38 AM »
i know only precipitation method with barium chloride. but i want to know titration method, i search on google but can't find. please help

Offline shchavel

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Re: mixture of NaCl and Na2SO4
« Reply #3 on: June 06, 2020, 02:12:03 AM »
Classic method for sodium chloride assay - AgNO3 titration. But you need potentiometric electrode for this.  But it also persiptate method) I think gravimetric much easy, if don't have titration eqiupment.

Offline kailash

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Re: mixture of NaCl and Na2SO4
« Reply #4 on: June 06, 2020, 02:45:52 AM »
Classic method for sodium chloride assay - AgNO3 titration. But you need potentiometric electrode for this.  But it also persiptate method) I think gravimetric much easy, if don't have titration eqiupment.
I want assay sodium sulphate not sodium chloride.

Offline AWK

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Re: mixture of NaCl and Na2SO4
« Reply #5 on: June 06, 2020, 04:04:08 AM »
i know only precipitation method with barium chloride. but i want to know titration method, i search on google but can't find. please help
Search under barium titrimetric analysis.
AWK

Online Borek

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Re: mixture of NaCl and Na2SO4
« Reply #6 on: June 06, 2020, 04:21:59 AM »
If the mixture contains only two substances determining percentage of one means you know the composition.

This is rarely the case in normal samples, but you have not explained if it is a theoretical, made up example, or real life problem, and what are assumptions.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Online Borek

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Re: mixture of NaCl and Na2SO4
« Reply #7 on: June 06, 2020, 04:23:11 AM »
Classic method for sodium chloride assay - AgNO3 titration. But you need potentiometric electrode for this.

No, you don't need potentiometric electrode.

http://www.titrations.info/precipitation-titration-argentometry-chlorides-Mohr
http://www.titrations.info/precipitation-titration-argentometry-chlorides-Volhard
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Offline shchavel

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Re: mixture of NaCl and Na2SO4
« Reply #8 on: June 14, 2020, 02:06:02 PM »
O, thanks! You're right, Borek!
I forget about indicators methods.

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