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adrian_dl
Stranger
Registered: 06/09/09
Posts: 13
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100% isopropyl
#10590933 - 06/29/09 05:17 AM (15 years, 6 months ago) |
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Hey
I got a bottle of isopropyl that boasts that its 100%
Can i dilute this with distilled/spring water to make it weaker???
Thanks.
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Mik
Desert Fox


Registered: 12/16/08
Posts: 181
Last seen: 9 years, 1 month
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Wow. I didn't think that existed.
I don't see why you couldn't add water to it though. Maybe delude it down to 90ish% I've always used 70% with great success.
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SillyBilly
Professional


Registered: 03/05/09
Posts: 3,634
Loc: Californi-eh
Last seen: 9 years, 29 days
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Re: 100% isopropyl [Re: Mik]
#10590965 - 06/29/09 05:40 AM (15 years, 6 months ago) |
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dont waste isopropyl of that kind on whatever you plan on cleaning use it for some kind of extraction
-------------------- By the livin' Gawd that made you,
You're a better man than I am, Gunga Din
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adrian_dl
Stranger
Registered: 06/09/09
Posts: 13
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This was the only brand i could find and im a beginner starting with the PF Tek.
Just about to make a syringe in a glove box so will the 100% be o.k to wipe shot glass??
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phaseflux
Stranger than most


Registered: 07/16/08
Posts: 702
Last seen: 11 years, 3 months
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Quote:
adrian_dl said: This was the only brand i could find and im a beginner starting with the PF Tek.
Just about to make a syringe in a glove box so will the 100% be o.k to wipe shot glass??
You could ONLY find 100%? That's a bit odd. Any pharmacy should carry the 70% variety. Anyways you want alcohol with more water content to allow it to be absorbed into bacteria etc more easily.
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FractalXplora
Grainiack




Registered: 02/11/06
Posts: 2,494
Loc: UK
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i just got 99% percent too, so its better and more effect to water down a little bit?
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tajmahal420
Stranger than some....

Registered: 05/23/09
Posts: 533
Last seen: 2 years, 4 months
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The higher the percentage, the faster it evaporates. Slower evap. = sustained disinfection.
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antimatt3r
umumz


Registered: 07/13/06
Posts: 538
Loc: the earf
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I always use 90
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 10 months
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Quote:
tajmahal420 said: The higher the percentage, the faster it evaporates. Slower evap. = sustained disinfection.
The effectiveness of alcohol has NOTHING to do with slower evaporation.
Dilute your alcohol down to 50% to 70% for best results. The reason is that cell walls will block out chemicals but allow water to pass. By adding water to the alcohol you 'trick' the cell walls into opening up and allowing the mixture to pass, and then the alcohol contained therein kills the cell. RR
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tajmahal420
Stranger than some....

Registered: 05/23/09
Posts: 533
Last seen: 2 years, 4 months
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I stand corrected. I was thinking that the longer the alcohol "hangs around", the longer it would be effective. But, I digress.
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FractalXplora
Grainiack




Registered: 02/11/06
Posts: 2,494
Loc: UK
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Quote:
Dilute your alcohol down to 50% to 70% for best results. The reason is that cell walls will block out chemicals but allow water to pass. By adding water to the alcohol you 'trick' the cell walls into opening up and allowing the mixture to pass, and then the alcohol contained therein kills the cell. RR
excellent, thanks Roger, thats what i need to know.
Make it spin out a lot longer too.
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Shroominit
Part Time Mycologist



Registered: 11/29/08
Posts: 4,662
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So where did you guys find 100(99)% iso? It seems like I have to distill my alcohol to get those concentrations.
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FractalXplora
Grainiack




Registered: 02/11/06
Posts: 2,494
Loc: UK
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ebay has it in abundance here in the uK dunno about the states.
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Shroominit
Part Time Mycologist



Registered: 11/29/08
Posts: 4,662
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Hmm the bay does here as well, just much more expensive than 91%, nearly 3-4x as much money to go from 91% to 99%, I might as well distill a ton of it and call it a day.
Thanks.
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