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Oct. 4th, 2010 05:22 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
bloodyrosemccoyToday's entry in Things That Are Way More Fun Than They Have Any Right To Be: using hydrogen peroxide to get bloodstains out of clothing. I always come away with the unhealthy thought: "Dang, that was neat! What else can I bleed on?"
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Date: 2010-10-04 11:27 pm (UTC)(no subject)
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Date: 2010-10-04 11:49 pm (UTC)(no subject)
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Date: 2010-10-04 11:50 pm (UTC)*fizzzzzz*
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Date: 2010-10-05 12:07 am (UTC)(no subject)
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Date: 2010-10-05 12:43 am (UTC)no subject
Date: 2010-10-05 01:44 am (UTC)It's also a differential test for bacteria! Some have the enzyme catalase which breaks hydrogen peroxide down into water and oxygen gas (which is also the enzyme in red blood cells that makes blood fizz) so in microbio lab we'd take a glop of some bacterial colony, smear it on a slide, drip a little H2O2 on it and watch them go. >:D
(Relatedly, it's debatable how useful hydrogen peroxide is on cuts and wounds, because your blood's catalase is more likely to neutralize it before it can kill bacteria. But it definitely causes pain and tissue irritation, which can release factors that recruit white blood cells to rush over and go ZOMG BACTERIA NOM NOM NOM.)
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Date: 2010-10-19 07:34 am (UTC)