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Specialty Chemistry Forums => Materials and Nanochemistry forum => Topic started by: MrGameAndWatch on August 13, 2008, 12:25:19 PM

Title: How To Consintrate H2O2 to 30%
Post by: MrGameAndWatch on August 13, 2008, 12:25:19 PM

How long would I Have To Boil 3% H2o2 to get 30% h2o2???


THANKS!

Title: Re: How To Consintrate H2O2 to 30%
Post by: nj_bartel on August 13, 2008, 06:00:15 PM

Pretty sure you can't concentrate it that way, and if you could, it'd probably blow up in your face at some point.  Why do you need it?

Title: Re: How To Consintrate H2O2 to 30%
Post by: MrGameAndWatch on August 13, 2008, 07:28:21 PM

I Neec It for the mashmellow experiment

Title: Re: How To Consintrate H2O2 to 30%
Post by: macman104 on August 13, 2008, 07:41:47 PM

This one:

http://www.metacafe.com/watch/1530755/marshmallow_experiment/

It is taking H2O2 and some soap, and then adding KI or NaI to it, then it foams up from the gas evolution trapped by the soap.

Title: Re: How To Consintrate H2O2 to 30%
Post by: nj_bartel on August 13, 2008, 07:44:02 PM

Oh ok.

 http://en.wikipedia.org/wiki/Hydrogen_peroxide

Read ALL of that article.  Be safe.

Title: Re: How To Consintrate H2O2 to 30%
Post by: MrGameAndWatch on August 13, 2008, 09:05:01 PM

wikipedia has nothing?

Title: Re: How To Consintrate H2O2 to 30%
Post by: nj_bartel on August 14, 2008, 12:35:41 AM

Maybe if you were to actually read it you'd come to the section on concentration, where it mentions sparging and fractional distillation, or if you'd cared to do a brief google search - http://drinkh2o2.com/