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To: The Duke

The typical Hydrogen Peroxide is 3%. It takes 30 minutes for it to destroy a virus - it has to remain wet for the 30 minutes. See link below for all of this.

Bleach water is similar, 30 minutes. A weaker solution in COLD water is better than a strong solution.

Alcohol is better at 70% than 91%, and is effective in about 15 seconds. And while the effectiveness of alcohol is well known, the FDA for whatever reason doesn’t have any products that use it as “approved”. But then again, the FDA doesn’t “approve” Vitamin C as effective against colds, etc.

409 and the various Lysol wipes are effective in about 30 seconds - the object needs to remain wet.

https://www.cdc.gov/infectioncontrol/guidelines/disinfection/disinfection-methods/chemical.html


39 posted on 03/21/2020 10:52:39 PM PDT by 21twelve (Ever Vigilant. Never Fearful.)
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To: 21twelve; The Duke

I think I missunderstood that technical stuff from the CDC. I found many other articles from health departments, etc. written for lay people that 3% Hydrogen Peroxide staying wet on a surface for 6 to 8 minutes is effective against a corona virus.

The key though is “wet” for all of them. I never knew that until a couple of months ago. I thought wiping down a table with a Clorox wipe was good enough. But using just one wipe on that large of an area - it doesn’t stay wet long enough.


42 posted on 03/21/2020 11:14:49 PM PDT by 21twelve (Ever Vigilant. Never Fearful.)
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To: 21twelve

Peroxide degrades quickly. The percentage must start at a point, such that the time required for treatment finds the residual potency sufficient for a kill.

For sterilization in minimal time, use at least a 12% potency. A 35% food grade without stabilizers is available commercially as a strength not requiring treating it as a potential explosive.

Handle this with precautions as one might handle a caustic such as quick lime. Causes burns if inhaled or touches skin. Wear PPE. Dilute with distilled water for a suitable level of disinfectant.


43 posted on 03/22/2020 12:35:13 AM PDT by Ozark Tom
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