H2o2

Aapoo

Well-Known Member
So when I look up hydrogen peroxide 35% all I see is 12% solution is this what I get? I can't find any on Amazon or ebay expressly marked 35%
 

J232

Well-Known Member
I want to say after 12%, it requires special handling, think 19, 29, 35 are all dangerous good and would require a courier with the proper markings. Check out hot tub stores, places that sell water softeners, pumps, farm water systems. All those places should have the higher % stuff. I don’t get mine from a hydro store.
 

Aapoo

Well-Known Member
I want to say after 12%, it requires special handling, think 19, 29, 35 are all dangerous good and would require a courier with the proper markings. Check out hot tub stores, places that sell water softeners, pumps, farm water systems. All those places should have the higher % stuff. I don’t get mine from a hydro store.
Will be damned... Can't pretty much anything be insidious though?
 

cannabineer

Ursus marijanus
@cannabineer
this is your forte but i guess the soda ash by-product would be no bueno for hydro?
If it is reasonably pure, it adds about 1ppm sodium by weight for every one ppm of peroxide. So, since I doubt one would want more than a few ppm of H2O2, the sodium load is probably below the noise floor.
 

OldMedUser

Well-Known Member
I've been getting my 35% at a health food store for the last few buys. Used to get gallon jugs at the big garden centre in the city where the health food store is too.

It's considered a hazardous product and needs special shipping that costs big time. I got 500g of sodium thiosulphate for $22 and it was $69 for Purolator to get it to me.

:peace:
 
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