Reaction of sodium thiosulfate with chlorine gas

2010-09-10View Original

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There are 2 equations: Na2S2O3 + 4Cl2 + 5H2O = 2NaCl + 2H2SO4 + 6HCl and Na2S2O3 + 2HCl = 2NaCl + S + SO2 + H2O. Do these two reactions occur simultaneously or sequentially? Additionally, the second equation requires a strong acidic environment for the reaction to take place; does anyone know what the approximate pH range is required for this reaction to occur? ?

Reply #22010-09-10

The reactions definitely occur simultaneously; there is only a difference in speed!

Reply #32010-09-13

Does anyone know the pH range at which sodium thiosulfate decomposes?~~~~~~~

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Reaction of sodium thiosulfate with chlorine gas

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