Avmich, специально для тебя, если ты ещё не прочитал на AROCKET, источники Н2О2 в Штатах и Канаде:
Health Food stores sell 35% H2O2 that is food grade, I think it has
less chemicals but also diffirent ones as well, I don't know how good
it is to use in a rocket design as it is very expensive per liter ($10-
15 Cdn).
Beauty Salons use 10% up to 25% H2O2 and thier price is not too bad,
however you can buy stronger than that from them, they tend to use
weaker solutions to avoid accidents from happening (ie bad hair days).
Water treatment companies also use it, however even after a year I have
not been able to nail down a firm price on a barrel of H2O2 (55 liters)
from my local supplier. His present price is $7.50Cdn a liter.
Some chemical (example Domminion Color a year ago) plants will sell you
a barrel(55 liters) or a drum(150 liters?) but you have to out right
pay for the sealed containor as well, they will not pour out into
another containor.
Some pool supply companies sell a chemical that generates H2O2 when
mixed with water, but it seem expensive and you have alot of the other
chemical resulting in your H2O2+water solution. I don't think it
produce alot of H2O2 either.