Re: gEDA-user: Isopropyl alcohol vs. ethanol

[Karel Kulhavy <clock@xxxxxxxxxxxxx>]

On Mon, Apr 24, 2006 at 01:13:43AM +0200, Bill Sloman wrote:
> At 23:54 23-4-2006, you wrote:
> >On 4/23/06, Karel Kulhavy <clock@xxxxxxxxxxxxx> wrote:
> 
> >> >Is it true that PCB's should be washed by isopropyl alcohol and 
> >not > ethanol because ethanol has small molecules that creep into 
> >the part > cases and wreak havoc >>there?
> 
> 
> 
> >>I've never personally heard this, but it is feasible I suppose. 
> >Ethanol is only C2H3OH, which is a much smaller molecule than isopropanol.
> 
> Ethanol is CH3.CH2.OH . Iso-propanol  is CH3.CH(OH).CH3, which is one 
> CH3 group larger - not a vast difference. Both are much larger than 
> water  - HOH - and nobody seems to worry about water creeping into 
> the parts, or a least not since they perfect the plastic package some 
> thirty-odd years ago.

And if it goes in, it will also go out quicker that water, right? It
disappears in front of the eyes.

CL<