Quote:
Originally Posted by pinkreef
Is using the commonly sold 3% stuff the same thing?
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yes, but I'm not sure I'd put 30% H2O2 directly in a tank, that stuff is crazy reactive. Most accounts I've read of people who use it for whatever purpose dilute it down to 3% before letting it come in contact with water/rocks.
When you do automated particle size analysis in a soils lab you need to digest all the organics in your sample or it messes up the sand/silt/clay distributions. My lab uses 30% peroxide to do it. The reaction is usually strong enough to boil the water in your reaction vessel. If you get it on your skin it instantly turns snow white to a depth of about half a mm, though if you rinse it off right away it will eventually get its normal colour back.
It's very potent stuff. Safer for all involved if it's diluted first. The benefit of 30% is that you get more for your money, and if you ever wanted to make a batch with a higher concentration for something like cleaning a filter sock you could.