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Author: Subject: quantitative measurement of oxidant
jwarr
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[*] posted on 12-7-2011 at 17:06
quantitative measurement of oxidant


Whats the most accessible way to quantitatively measure the amount of oxidant (either H2O2 or CH3CO3H, or sodium percarbonate) in a solution?

[Edited on 13-7-2011 by jwarr]
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Magpie
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[*] posted on 12-7-2011 at 17:29


Just offhand I would think that titrating with a standard sodium thiosulfate solution would be the easiest.



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[*] posted on 13-7-2011 at 03:59


I think I've seen a procedure for determining concentration of hydrogen peroxide with standardized potassium permanganate. But isn't there a risk that Mn<sup>2+</sup> could catalyze decomposition of the H<sub>2</sub>O<sub>2</sub>?



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jwarr
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[*] posted on 13-7-2011 at 06:50


Magpie, is there any way to visualize the endpoint without starch and iodine?
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[*] posted on 13-7-2011 at 08:59


Quote: Originally posted by jwarr  
Magpie, is there any way to visualize the endpoint without starch and iodine?


I don't know if there is any other easy way. It could probably be done potentiometrically, but that takes special equipment I guess.




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