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Topic: Na2S to Na2S2O3 oxidation  (Read 1665 times)

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Offline MDC lab

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Na2S to Na2S2O3 oxidation
« on: July 30, 2020, 02:56:08 AM »
i have a sodium sulfide aqueous solution and i want to change in sodium thiosulphate by only air oxidation.
for this i make sodium sulfide solution and leave for air oxidation for 6 hour.
after this i analyse both solution but  nothing find any reducing compound (Na2S2O3 ) after oxidation.
any suggestion
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Offline chenbeier

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Re: Na2S to Na2S2O3 oxidation
« Reply #1 on: July 31, 2020, 01:44:32 PM »
You have to add sulfurdioxide SO2.
Oxygen will not oxidate it.
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Offline MDC lab

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Re: Na2S to Na2S2O3 oxidation
« Reply #2 on: August 01, 2020, 02:44:51 AM »
Quote from: chenbeier on July 31, 2020, 01:44:32 PM
You have to add sulfurdioxide SO2.
Oxygen will not oxidate it.
thank you so much
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