JaiNobeZ
0
- Joined
- Jan 21, 2010
- Messages
- 935
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- 0
Just a suggestion, it's possible the OP was trying to fool us. He made 2 posts, both on this thread, and was never seen again.
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Not totally sure in England, sorry ..... but here, H2O2 for disinfection is 3,6% 12 Vol solution (some brands sells 3% 10 Vol solutions, for disinfection) ..... the one lab-grade i've got from pharmacy is 35% 130 Vol solution ..... the one i've got from paintshop is marked 130 Vol also, but does not report the percentage on the tag (it must be the same 35%, probably just contains some more impurities) ..... and the one i've seen for hair decoloration times ago, was marked 35 Vol, but i really don't remember the percentage (it must be around 10%, with the same scale).
Anyway, i know that different countries have different laws, about chemicals, and also, the double marking of the H2O2 in percentage and "volumes" can make some confusions ..... in lab environments, it's marked in percentage, where instead in civil environment is marked in Volumes
BTW, the "Volumes" indication is simply the number of volumes of oxygen that the total decomposition of the H2O2 can generate ..... if it say "12 Vol", it mean simply that 1 liter of H2O2 at 12 Vol can generate 12 liters of oxygen, at 0C and 1 atm pressure, when totally decomposed (and it's not a linear scale, cause doubling the percentage does not generate the double of oxygen, but something less)
Also, regardless how much you can search, it's practically impossible to find H2O2 over 60%, outside some high safety lab, cause in pure form it's an unstable substance, that sometimes self-explode for almost no reasons (look it bad enough and *KABOOM* ).