Purify hydrogen peroxide?

[dcstegg228]

How can i purify it? right now i only have 3% and thats not good enough so how can i purify it? oh and i dont have any non household items i can add to it so pleese dont suggest it.

 

Thanks for the help,

dcstegg

[ecoli]

There have been other threads discussing this... use the search function.

[dcstegg228]

There have been other threads discussing this... use the search function.

 

ok, sorry

[MulderMan]

The easiest and safest method i know of is fractional freezing. From my notes:

 

-store bought hydrogen peroxide is usually 3% H2O2, 97% H20

-water freezes at 0 degrees (obv!)

-H2O2 freezes at -11 degrees

 

depending on your freezer, if you freeze the solution, and drain it off, the drained liquid will be relatively pure H2O2.

[[w00t]]

Boiling also works

[Darkblade48]

'']Boiling also works

Boiling would most likely speed up the decomposition of the peroxide rather than purifying it.

[RyanJ]

Here are a few of the past discussions for you

 

http://www.scienceforums.net/forums/showthread.php?t=15736

http://www.scienceforums.net/forums/showthread.php?t=14672

http://www.scienceforums.net/forums/showthread.php?t=5804 (HUGE)

 

Cheers,

 

Ryan Jones