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what are these white marks on my fingers after using h202?

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Anonymous

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Jul 1, 2001, 7:49:02 AM7/1/01
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What are these white marks on my fingers after using h202?

I use 3% h2o2 to disinfect my contact lenses
and sometimes after I use h2o2 I get these
white marks on my fingers and a burning
sensation, I try to rinse it off but
it still keeps burning, but eventually
it goes away along with the white marks.

Just plain pure 3% h2o2 doesn't bother me
on the skin.

I was thinking that perhaps if the h2o2
gets mixed in with soap that this makes
something else?

What's going on?

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Larry Smith

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Jul 1, 2001, 9:57:56 AM7/1/01
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"Anonymous" <anon...@anonymous.anonymous> wrote in message
news:3B3F0E2E...@optonline.net...

> What are these white marks on my fingers after using h202?
>
> I use 3% h2o2 to disinfect my contact lenses
> and sometimes after I use h2o2 I get these
> white marks on my fingers and a burning
> sensation, I try to rinse it off but
> it still keeps burning, but eventually
> it goes away along with the white marks.
>
> Just plain pure 3% h2o2 doesn't bother me
> on the skin.
>
> I was thinking that perhaps if the h2o2
> gets mixed in with soap that this makes
> something else?
>
> What's going on?

3% peroxide can be used as mouthwash with no big problem.
The 35% stuff we use in the lab will burn your skin very quickly.
It doesn't require any other agent, like the soap, to do this.

Jmchunn

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Jul 1, 2001, 10:56:17 AM7/1/01
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I believe you mean the white spots that go away in a few min. If so, I believe
this may be collections of very small oxygen bubbles formed in the skin when
the peroxide is decomposed by enzyme. I frequently use strong hydrogen peroxide
solutions and get these spots. Even if weak solutions are used, prolonged
exposure can cause them to occur.

alan

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Jul 2, 2001, 6:00:50 PM7/2/01
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I have experienced more persistent white marks from H202. They are clearly
skin damaged by oxidation, but the exact chemistry I know not.

alan

Jmchunn <jmc...@aol.com> wrote in message
news:20010701105617...@ng-cj1.aol.com...

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