leon30: Thanks for the points Lin! I think around here in every pharmacy there is 95% Ethanol, that 100ml bottle should contain 95ml Ethanol + 5ml purified water, we do have the "oil ones" for example with added 1% lavender oil, but those are specifically called lavender spirt(ethanol). I do however have to check if it has some anti-evaporation protective oil film though, I hope it will be listed on the contents.
Sure!
It breaks down like this:
1. Ethanol=Ethyl alcohol = its a regular "consumable" alcohol in beverages
Its a booze. Primarily produced by food/corn industry. Can be consumed.
Cost: It costs A LOT because of the % TAX, which is taken by STATE.
Leaves a slight film and may attack plastic. Can be up to 99,9%.
60% Water+40% Ethanol = Vodka
20% Water + 80% Ethanol = Medical alcohol (disinfection against bacteria/but not viruses)
2. Ethanol denaturated = denaturate = Ethyl alcohol denaturated = regular alcohol(ethanol) + special bitter chemical.
Used anywhere, where Ethanol is used, the denaturation by bitter chemical allows the state to remove the alcohol % tax. Special chemical is added to prevent people mixing it with water to make beverages. Can be consumed but extremely bad in taste (on purpose).
Cost: Already costs much much less than regular ethanol.
Same characteristics as Ethanol.
This form is often used/sold as a window cleaner or as a fluid for making/starting/ fires.
80% Water + 20% denaturated ethanol + additives (soup, tensides etc) = glass cleaner
3. Isopropyl = Isopropanol = technical alcohol.
Used for technical purposes, its like (2.) but is toxic when consumed.
Contains much less oils, hence often used for electronics.
Cost: Very cheap, even cheaper than (2.)
Used like (2.), plus (1.) with exception for any beverages. Its "mildly" but strongly toxic when consumed.
20% Water + 80% Isopropyl = Medical alcohol (disinfection against bacteria/but not viruses)
80% Water + 20% Isopropyl + additives (soup, tensides etc) = glass cleaner
10% Isopropyl(99,999% pure only) + 90% colophony/rosin = liquid colophony (good cheap flux for soldering purposes)
4.
Methanol = Methyl alcohol = technical alcohol for very specific uses.
Extremely toxic when inhaled or drunk/consumed, very restricted use (not without reason).
Like (3.), but contains even less traces of oils.
I know that its sometimes used to clean lenses and sensors of cameras and its sold in milliliters after clearance.
In Russia it was once discovered in some windscreen wiper fluids and immediately confiscated (not without reason).
That's my limited knowledge of alcohols.
Also, I hope you haven't overlooked my response about thermal grease in its post #19, with links to actual testing.