Relationship Between H2O2 & Redox (ORP) . . . Help with Explanation?

[maciejPL]

So how are the tests of Your decriminalized osmosis water ?

 

[Lasse]

I´m not a native english speaker - I write english with a slight swedish accident :)

Sincerely Lasse

 

[Lasse]

I have no time for the moment to do the tests - but they will come sooner or later.

Sincerely Lasse

 

[Randy Holmes-Farley Verified Community Expert]

Reverse osmosis removes minerals ? That is not healthy, minerals are very important and if You drink demineralized water You will flush out minerals already in Your body.

Don`t You have some bought demineralized or distilled water at home ? I Do :) but i don`t have orp meter

Not true. Please read any of the many threads on this topic, and let's not confound this ORP thread with a discussion of health aspects of deionized water.

 

[Randy Holmes-Farley Verified Community Expert]

If we get a drop even in RO water - we can´t still not rule out metals importance because it can be a reaction taking place at the probes metals part. However if we get no reaction - we no that it is not the probe that trick us. I will put up an experiment - However - I do not expect any drop because the H2O2 is rather stabil in RO water (it is possible to dilute)

I will set up an experiment with this - I have brand new redox probes at home. If no reaction - I can ad different metals - @Randy Holmes-Farley which should I start with (I have Tritons trace metals at home) ?

Sincerely Lasse

IMO, it's not a useful experiment to understand what is happening in a reef aquarium.

Just measure the ORP of the bottled peroxide (which is mostly water already) if you want too (folks have done it and its not very revealing; see link below)), but it doesn't say much about what is happening in seawater where there are lots of chemical that react with peroxide.

https://www.reef2reef.com/threads/orp-drop-when-dosing-h2o2.339063/

 

[Lasse]

IMO, it's not a useful experiment to understand what is happening in a reef aquarium.

Just measure the ORP of the bottled peroxide (which is mostly water already) if you want too (folks have done it and its not very revealing; see link below)), but it doesn't say much about what is happening in seawater where there are lots of chemical that react with peroxide.

https://www.reef2reef.com/threads/orp-drop-when-dosing-h2o2.339063/

That thread indicate that the drop is not only done by an interaction with the platinum of the redox electrode. It can still be a part of it but probably not the major effect.

I´m aware of that it is reactions between the H2O2 and elements in the water that cause the drop but the question is - can you isolate these elements by start with pure water and add these suspected elements one after the other. Will a potato give the same effect as manganese? (you can suspect different breakdown patterns with these two examples)

Sincerely Lasse

 

[maciejPL]

OK so if You measure ORP in H202, does it stay lowered ? Or it comes back, like in aquarium ?

 

[Randy Holmes-Farley Verified Community Expert]

OK so if You measure ORP in H202, does it stay lowered ? Or it comes back, like in aquarium ?

As noted in the link above, the ORP in H2O2/water in a bottle, which had been in that water for a long time, was about 300 mV:

"So when taking the ORP probe and putting it directly into a bottle of hydrogen peroxide it instantly dropped to 293- to 303 and remained steady in that range. It is interesting because when I add the H2O2 to the tank water my ORP goes down to the low 200's. Last night down to 205 as the min."

As I noted in the thread, I don't think that is an especially revealing experiment, however.

 

[maciejPL]

yeah yeah i am asking because of possible reaction with electrode, My point is if measurement changed conditions.