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Watrule tension (files.catbox.moe)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 31 points 3 months ago (7 children)

Doesn't alcohol (like isopropol) have like zero surface tension? I know it evaporates super fast which is one of the factors that makes it a good cleaning agent.

[–] [email protected] 23 points 3 months ago (3 children)

That's actually exactly why it's a bad cleaning agent, at least for sterilization purposes. It evaporates before it can kill any microbes.

[–] [email protected] 21 points 3 months ago (1 children)

Yeah if you're using high percentage isopropanol it's less effective. I think the current recommendation is 70% for sterilization purposes as it remains in contact longer. Higher percentages is more for its use as a solvent or cleaning electronics.

[–] [email protected] 6 points 3 months ago (1 children)

I thought the 70% was recommended because it helps maintain membrane fluidity or something like that

[–] [email protected] 1 points 3 months ago

Yeah or something with hydrophilic properties with the water help destroy microbes. I love reading about chemistry but keep forgetting.

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