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Isopropyl Alcohol Source (rubbing Alcohol)

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Ocelaris

Member
Joined
Feb 27, 2002
Location
NYC, Brooklyn
Does anyone know of a good source for rubbing alcohol? you can buy it in quart size (1/4 gallon), for 2$ @ the grocery store, but I was hoping to find a little larger quantity... Anyone?

Someone mentioned a Gas station? Someone mentioned a distillery... can't exactly find one of those? Or through an electronics store you can get alot, but it's like 70$+shipping...

Thanks, Bill
 
all those are different types of alcohol. try a medical supply company. if you don't mind using grain alcohol go to the liquor store
 
Would methanol be a suitable replacement for Isopropyl alcohol? if so, try a racing store or racetrack.. My friend runs methanol on his race car and buys it for $2.xx per gallon. You might be able to just get a few gallons, rather than buying an entire barrel, though. I'm not sure.
 
methanol they say according the stick on hard data, is an ideal medium for the reservoir, I just worry because they say it is hazardous to your health, or at least some forms are... but I will look into it if the price is right :)

What exactly would a racing store be called? like I have no clue about cars... except to check my oil, change it frequently... like how would I go about finding a "race store" what would it be under in the yellow pages? Thanks, Bill
 
I finally found it here for less. Around $16 a gallon, or $48 for 4 gallon case.
It says "water free to prevent corrosion", but it doesn't list it's actual purity.
Carefull with the stuff bro, I also found sites with research showing the toxic effects it has...dead colon lining, dead liver, etc...and it's used mainly because it absorbs through the skin very fast! (wonder why it's in so much stuff, it's MSDS is killer bad!)
By the way, rubbing alcohol has oil in it, this stuff won't (listed as an optics cleaner)....thus the price difference.

They also seem to have alot of electronics manufacturing stuff too (conformal coatings, soldering stations), I think I'll have to check them out myself...I found this on Google.
 
$20+ dollars shipping for hazardous materials though. Still a pretty good price for a gallon, it really would last forever.
 
Don't forget: Methanol is very flammable! A spark at the wrong time when you're working with it and you'll have a nice little fireball on your hands.
 
Don't go platinum plating anything in your system though, Platinum has a catalytic effect in the presence of alcohol vapour and heats up and glows red. You should be able to imagine how this would not be a good thing. Aluminum is also reported to work as a catalyst when dry steam and hydrocarbons are present, allowing cracking of the hydrocarbons and releasing free oxygen and hydrogen. This happens at temperatures above 100C I think, however, if you ever forget to turn your pump on one day, it's not nice to imagine that there's a slight chance you might take out half the block instead of just your CPU.

I keep coming across that "there's oil in rubbing alcohol" thing and I beleive there might be some confusion between types of rubbing alcohol. There is the green stuff that clearly states that it contains wintergreen oil, you obviously don't want to go using this as a contact cleaner or whatever, but the pure white stuff, at 70% USP, never has shown any signs to me of even having a trace of oil in. However, I think the particular type of alcohol here is not very nice to anti-reflective coatings, which is a very big reason why you would not want to use it as an optical cleaner. If however you clean uncoated glass with it, you will see it leaves it smear free, allowing some of the 70% USP stuff to evaporate from a puddle on a mirror will leave almost no trace, except what dirt it may have adsorbed from the surface of the mirror, definitely no oily residue. *shrug* So I never beleive it when I hear that, because there ain't no oil in the stuff I get.

Road Warrior

edit:
Oh by the way, when I get a really crappy tank of gas, I go get one of those quart bottles of rubbing alcohol and pour it in. Improves the octane rating. For 5 bucks or so you can go and buy a bottle of "fuel injector cleaner/ carburettor cleaner " that is half the size and is mainly, guess what, isopropyl aclohol.
 
Rubbing alcohol (70%) can contain just about anything. I found it diluted with water, ethynol, methynol, lanolin, menthol, "skin lubricants", spearmint oil, wintergreen oil, and mineral oil, mine says it contains "Lauric Ester of Colamino Formylmethyl Pyridinium Chloride" as an anti-bacterial agent. Manufacturers don't seem compelled by any government agency to list their ingredients like foods are, since it's not for ingestion....it could be anything in there, and chances are there is some form of oil wether it's from the bark of a tree, an animals hide, or a refinery in the Gulf of Mexico.
I found all these listed ingredients in the first four pages of a google search {"rubbing alcohol" +contains}.

The point is, using the diluted stuff, you risk mixing God knows what with other chemicals they may not be intended to mix with. There's far less chance of this with the near pure stuff.

Have a good'n.
 
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