Is the Synthesis of Sodium Dithionite Accurate?

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Discussion Overview

The discussion revolves around the accuracy of two proposed chemical reactions for the synthesis of sodium dithionite (Na2S2O4) from sodium bisulfite (NaHSO3) and zinc (Zn). Participants are exploring the validity of these reactions and the conditions required for their execution.

Discussion Character

  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions the accuracy of the reaction: 2 NaHSO3 + Zn → Na2S2O4 + Zn(OH)2, noting that they did not obtain Na2S2O4 as expected.
  • Another participant suggests checking the document from which the Wikipedia reaction is derived for reaction conditions.
  • A participant expresses confusion over the lack of stated conditions in the document and seeks further assistance.
  • One participant expresses surprise at the claim of missing information, stating that the document contains significant details about how the reaction is performed.
  • Another participant mentions finding information about the second reaction involving H2SO3, but also finds it confusing and lacks information on the first reaction.
  • A later reply points out that the equation is referenced from a paper published in 1929, providing a link to this source.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on which reaction is correct, and multiple competing views regarding the reactions and their conditions remain unresolved.

Contextual Notes

There are limitations regarding the clarity of reaction conditions and the completeness of the referenced documents, which may affect the understanding of the reactions discussed.

asamaid1
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is the following reaction right?

2 NaHSO3 + Zn → Na2S2O4 + Zn(OH)2

because i tried this reaction but i m not getting any Na2S2O4. I got this reaction in wikipedia. And i found another reaction in the net which is following:

2 NaHSO3 + H2SO3 + Zn ─→ ZnSO3 + Na2S2O4 + 2 H2O

Which one is right? Plz anyone can help me?
 
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Have you checked what the document (from which the wikipedia reactions is taken) says about reaction conditions?
 
Borek said:
Have you checked what the document (from which the wikipedia reactions is taken) says about reaction conditions?
No condition is stated there. please can u help me with more information. Thanks.
 
asamaid1 said:
No condition is stated there. please can u help me with more information. Thanks.

Sorry, I can't help you - but I am rather surprised by your statement. The document I fetched, while incomplete, says a lot about how this reaction is performed.
 
Really, where did u get that. I did find some information about the second reaction, but that is confusing. I did not find any information about the first. If u got any information please help me with that. I need that for my project. Thanks.
 
Have you checked the references? The equation is listed as coming for a paper published in 1929, and there is a link to this paper.
 

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