Relationship Between H2O2 & Redox (ORP) . . . Help with Explanation?
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I´m not a native english speaker - I write english with a slight swedish accident 
Sincerely Lasse
Sincerely Lasse
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I have no time for the moment to do the tests - but they will come sooner or later.
Sincerely Lasse
Sincerely Lasse
Randy Holmes-Farley
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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
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.
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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.
ORP Drop When Dosing H2O2
I read the ORP article posted on Reefkeeping; very informative. ( http://reefkeeping.com/issues/2003-12/rhf/feature/ ). My 75 gal Mixed Ed Reef will stay around 400-425 mv, as measured on a 2016 Apex, when left to itself with a Vertex skimmer running. Table 2 in the article lists hydrogen...
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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.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.
ORP Drop When Dosing H2O2
I read the ORP article posted on Reefkeeping; very informative. ( http://reefkeeping.com/issues/2003-12/rhf/feature/ ). My 75 gal Mixed Ed Reef will stay around 400-425 mv, as measured on a 2016 Apex, when left to itself with a Vertex skimmer running. Table 2 in the article lists hydrogen...
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
Randy Holmes-Farley
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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.
