# Combustion Chemistry

#### Auteng

What is the meaning of the appearance of the following species in a combustion:

-OH

-H2O2

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#### BvU

Homework Helper
Where do they appear ?

#### Auteng

thousands of reactions occur in the combustion....
I want to know what is the meaning of the appearance of each species...

#### BvU

Homework Helper
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-

#### Auteng

No, not meaning like that
For example appearance of CH2O shows cool flame...

#### BvU

Homework Helper
I see. You want to know what causes the formation of OH- and/or H2O22- ( or just H2O2 ?) in a flame !
A bit like here ?

"Combustion Chemistry"

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