Hydrogen peroxide, H2O2 the perhydroxyl ion, OOH

Hydrogen peroxide is marketed as 20 volumes (6%), 40 volumes (12%) and 100 volumes (30%) solutions. It decomposes slowly in cold, but rapidly on heating, to water and oxygen gas  

H2O2 and OOH To Study its reactions use a 3% (approximately m) solution of hydrogen 

NaB03 4H20 can be used, which hydrolyses rapidly to form hydrogen 

The metaborate ion which is formed does not interfere with the reactions described below. 

Chromium pentoxide test if an acidified solution of hydrogen peroxide is mixed with a little diethyl ether (highly inflammable), amyl alcohol or amyl acetate and a few drops of potassium dichromate solution added and the mixture gently shaken, the upper organic layer is coloured a beautiful blue. For further details, see Section 4.33, reaction 4, and Section 3.24, reaction 6b. The test will detect 0.1 mg of hydrogen peroxide. 

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