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For example, Poliovirus is resistant to a solution of 3% H 2 O 2 even after a contact time of 10 minutes, [59] however 7.5% H 2 O 2 takes 30 minutes to inactivate over 99.9% of Poliovirus. [7] Generally, hydrogen peroxide is considered as a potent virucide in appropriate concentrations, specifically in other forms such as gaseous. [18]
Hydrogen peroxide is a chemical compound with the formula H 2 O 2.In its pure form, it is a very pale blue [5] liquid that is slightly more viscous than water.It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
A 3% solution is also used as an antiseptic. Hydrogen peroxide vapor is used as a medical sterilant and as room disinfectant. Hydrogen peroxide has the advantage that it decomposes to form oxygen and water thus leaving no long term residues, but hydrogen peroxide as with most other strong oxidants is hazardous, and solutions are a primary irritant.
The majority of hydrogen peroxide solutions are 3% hydrogen peroxide. [1] This enables the solution to break down any proteins that coat the contacts after a long period of use. Hydrogen peroxide is always used alongside a neutralizing product. [2]
A typical mixture is 3 parts of concentrated sulfuric acid and 1 part of 30 wt. % hydrogen peroxide solution; [1] other protocols may use a 4:1 or even 7:1 mixture. A closely related mixture, sometimes called "base piranha", is a 5:1:1 mixture of water, ammonia solution ( NH 4 OH , or NH 3 (aq) ), and 30% hydrogen peroxide.
In medical sterilization, hydrogen peroxide is used at higher concentrations, ranging from around 35% up to 90%. The biggest advantage of hydrogen peroxide as a sterilant is the short cycle time. Whereas the cycle time for ethylene oxide may be 10 to 15 hours, some modern hydrogen peroxide sterilizers have a cycle time as short as 28 minutes. [44]
Controversial alternative medicine proponents Joseph Mercola and Thomas Levy claimed that inhaling 0.5–3% hydrogen peroxide solution using a nebulizer could prevent or cure COVID-19. [ 30 ] [ 31 ] They cite research using hydrogen peroxide to sterilize surfaces, [ 32 ] [ 33 ] incorrectly asserting that it can therefore be used to clean human ...
A 2% solution of accelerated hydrogen peroxide achieves a high level of disinfection in 5 minutes and is suitable for disinfecting hard plastic medical devices such as endoscopes. [3] In addition to being an excellent fungicide , chemicals using accelerated hydrogen peroxide have been suggested by some papers to be safer for humans and more ...
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