I had frozen 6 bottles of H2O2 for several days and then took the cap off and was able to get roughly and consistently 10-15 mL of solution while the
bottle of H2O2 was frozen solid per bottle.
I then put my 6 combined amounts of what I believed to be concentrated H2O2 back in the freezer and let it sit for days, and it has remained
completely liquid.
I plan on testing it next chance i get, but is it safe to assume that I have pretty concentrated H2O2, since it has not froze the least bit?
I have about 68 mL of it. If, it is very concentrated, I would say that is not bad for $3.00. We have two bottles of H2O2 for $1.00 around here.
[Edited on 17-2-2014 by organicchemist25]Nickdul - 17-2-2014 at 11:56
Depends on the temperature of your chilling box/freezer/etc. There are may ways to test H2O2 concentration - density, O2 gas evolved, iodometry...
UTFSE, there are many, many threads: https://www.google.com/search?q=hydrogen+peroxide+concentrat... vmelkon - 19-2-2014 at 14:30
To the OP: I guess you are talking about 3% solutions.
We have 473 mL at the dollar store in Canada.
I distilled mine to 50 mL. Density was between 1.07 and 1.08 g/mL. I think it works out to 17%.
Interestingly, the original stuff has a density almost the same as water 1.00 g/mL. I would need higher precision to detect it. At least 4 digits.
Edit: actually I did not distill. It was on low heat, maybe 60 C.
[Edited on 19-2-2014 by vmelkon]sargent1015 - 19-2-2014 at 16:25
