Discussion Central

Expand all | Collapse all

Hydrogen peroxide

  • 1.  Hydrogen peroxide

    Posted 10 days ago
    If I want to use hydrogen peroxide as a sanitizer  , what is the lowest concentration that is sufficient to kill corona-covid19?

    Abdulqader Asiri

  • 2.  RE: Hydrogen peroxide

    Posted 6 days ago
    En varias revistas de medicina 5 ml en un litro de agua para desinfectar.

    Keyla Yela

  • 3.  RE: Hydrogen peroxide

    Posted 6 days ago
    Are you sure such a low concentration? Can you reply in English please?

  • 4.  RE: Hydrogen peroxide

    Posted 4 days ago
    Hello! Good question.  Many are using 30-35% Hydrogen peroxide to make sanitizer.  (Many people are buying a drum of 30-50% peroxide and then diluting down to <3%. Be aware the variety that you can purchase for your home is typically 3% or less.)  From a safety perspective, please take precautions.  Hydrogen peroxide is an oxidizer and reactive chemical that is well-known for starting fires and (if confined) explosions, even at concentrations that people feel are low - like 30%.    Hydrogen peroxide drums should not be stored next to organic chemicals or untreated, combustible wooden pallets.  I worked at a facility once that had stories about 30-50% peroxide being spilled on clothing, someone put it in a trash bin, and later the trash bin caught on fire.  I also investigated a serious near miss (explosion and fire) involving only 2 gallons of 50% peroxide that decomposed violently when it mixed with a small amount of organic material.  It's humbling.  A friend of mine saw "flying manway covers" when they failed to dilute to less than 3% when sending material to a waste collection system.  All to say... keep an eye on that concentrated (30-50%) supply drum!   Link to an easy-to-read resource:    https://www.dekra.us/media/hydrogen-peroxide-hazards-infographic.pdf

    Sarah Eck

  • 5.  RE: Hydrogen peroxide

    Posted 3 days ago
    Before going any further, I'd suggest that the MSDS of H2O2 be carefully looked into. I got the following link in my 1st attempt on Google:
    The above is just a representative version.

    Vishwas Pangarkar PhD
    Retired Professor of Chemical Engineering, University of Mumbai, India.
    Currently: Independent Chemical Engineering Academic/Professional.
    Nasik-422013, India.