Combustion Chemistry: Meaning of OH, H2O2 in Combustion

AI Thread Summary
The discussion centers on the formation of hydroxyl radicals (OH) and hydrogen peroxide (H2O2) during combustion reactions. Participants clarify that the appearance of these species indicates they are being formed in the reaction process. There is a request for more context from textbooks or articles to better understand their significance. The conversation also touches on the implications of other species, such as CH2O, which can indicate specific flame characteristics. Ultimately, the focus is on understanding the causes behind the formation of OH and H2O2 in flames.
Auteng
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What is the meaning of the appearance of the following species in a combustion:

-OH

-H2O2
 
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Where do they appear ?
 
thousands of reactions occur in the combustion...
I want to know what is the meaning of the appearance of each species...:smile:
 
I don't understand your question. If it appears in the combustion reaction, it is being formed. Why should there be a meaning associated with that ?
If it appears in a textbook or in an article, you might help us assist you by quoting some more context.
OH- is usually a negatively charged radical. ##\ ## -OH can mean a lot of things, including OH-
H2O2 is hydrogen peroxide. -H2O2 could be a doubly negative radical H2O22-
 
No, not meaning like that
For example appearance of CH2O shows cool flame...
 
I see. You want to know what causes the formation of OH- and/or H2O22- ( or just H2O2 ?) in a flame !
A bit like http://www.icders.org/ICDERS2011/PapersICDERS2011/ICDERS2011-0328.pdf ?
 

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