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Author: Subject: Removal of Trace H202 from Sulfuric Acid
Abromination
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[*] posted on 19-4-2019 at 18:34
Removal of Trace H202 from Sulfuric Acid


I made some sulfuric acid using the sulfur dioxide/oxidiser method using concentrated hyrogen peroxide and am planning on using in a synthesis where leftover peroxide would not be ideal (peroxides and organics, you know, the friendly combination). I am fairly certain all of it will react but I cant be certain. What catalysts could I use to decompose any remaining peroxide quickly that wouldn't react with the acid?



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fusso
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[*] posted on 19-4-2019 at 19:21


Formaldehyde/formic acid?
Edit: maybe just any organics? Trace H2O2 in H2SO4 is just like a very weak piranha soln.

[Edited on 190420 by fusso]




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mayko
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[*] posted on 19-4-2019 at 21:19


ultraviolet light?



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Felab
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[*] posted on 19-4-2019 at 23:48


Maybe just heating the acid to its boiling point is enough? At high temperatures H2O2 isn't stable and as a plus you will also make the acid water free (98%).
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[*] posted on 20-4-2019 at 02:12


SO2
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Assured Fish
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[*] posted on 20-4-2019 at 02:46


Just heat it up you crazy bastards, H2SO5 decomposes at elevated temperature.
100*C is more than adequate and i suspect you will want to boil it down to remove water anyway.




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[*] posted on 20-4-2019 at 05:07


Quote: Originally posted by Assured Fish  
Just heat it up you crazy bastards, H2SO5 decomposes at elevated temperature.
100*C is more than adequate and i suspect you will want to boil it down to remove water anyway.

Easiest and fastest way, it's not even needed to BOIL sulphuric acid, so less risk





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[*] posted on 20-4-2019 at 17:41


ditto to Ubya, even if he ignored Assumed Fish's poor choice of words..
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