# Combustion Chemistry

1. Mar 26, 2017

### Auteng

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

-OH

-H2O2

2. Mar 26, 2017

### BvU

Where do they appear ?

3. Mar 26, 2017

### Auteng

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

4. Mar 26, 2017

### BvU

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-

5. Mar 31, 2017

### Auteng

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

6. Mar 31, 2017

### BvU

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 ?