What is the shelf life of hydrogen peroxide?

Answer

Hydrogen peroxide has a very long shelf life, usually from two to three years if stored in a cool dry place. Even at higher temperatures, hydrogen peroxide tends to remain relatively stable and able to be used for at least a year. There is no danger in using expired hydrogen peroxide, but there is also no real benefit in it either. It's also wise to keep hydrogen peroxide or any other substance that shouldn't be swallowed, away from toddlers, small children, and animals.
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Q&A Related to "What is the shelf life of hydrogen peroxide?"
Quoting J Holsenbeck: What is the shelf life of Hydrogen Peroxide 20 Volume? What an odd question. I couldn't find any info on this at all. Why do you want to know, specifically ?
http://www.askmehelpdesk.com/chemistry/shelf-life-...
IF YOU LEFT THE BOTTLE OPEN FOR AWHILE OR HAD DIPPED A CONTAMINATED SWAB BACK INTO THE BOTTLE YOU PROBABLY RENDERED THE PEROXIDE INTO PLAIN WATER. TIME TO BUY A NEW BOTTLE.
http://answers.yahoo.com/question/index?qid=200709...
Doing a project based on hair color and peroxide could help a person learn more about the pros and cons of using this mixture and which safety precautions to adhere by.
http://wiki.answers.com/Q/How_can_a_science_fair_p...
Evonik hydrogen peroxide grades have excellent shelf life. If stored at an average temperature of 20°C, decomposition is less than 2% per year based on active hydrogen peroxide.
http://www.experts123.com/q/what-is-the-shelf-life...
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