Yup, the same, but the purity may be different. A question of labelling.
Brian
Hernefjord Ingemar wrote:
> Hi,
> is 2-propanol and isopropanol exactly same? We changed from 2-propanol
> to isopropanol some years ago (not same articl number). Thought myself
> for years, that these two were not equals.
>
> E.g. http://www.canal-h.net/webs/sgonzalez002/Quimica/ALCOHOLS.htm
>
> /Inge
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis
> Sent: den 29 augusti 2007 10:54
> To: [log in to unmask]
> Subject: Re: [TN] The perils of using Alcohol for cleaning
>
>
> Phil Quixote
>
> Yes, right windmill. I'm sure that there is discussion of this in the
> earlier Solvents Assessment Reports (in the 1990s) of the Technical and
> Economic Assessment Panel of the Ozone Secreatriat. I tried to find it
> at
> http://www.unep.ch/ozone/Assessment_Panels/TEAP/Reports/TEAP_Reports/ind
> ex.shtml
> but come up with couldn't be found. Try asking them for a hard copy of
> the 1998 TEAP Assessment Report: it may mention it. Searching through my
> archives I find the following on p 2-18 of the 1998 UNEP STOC Assessment
> Report:
> "Amongst the flammable solvents, the one that is most frequently quoted
> for electronics defluxing is isopropanol. Unfortunately, this solvent,
> although it will dissolve rosin residues reasonably easily, has very
> limited solubility for most of the other by-products resulting from the
> soldering process unless it is extremely pure. Continual purification
> can be achieved by high-volume distillation in an approptriate machine,
> but this is very energy-intensive and expensive. It is not recommended
> to use this product by itself..."
>
> Does this help?
>
> Brian
>
> Phil Nutting wrote:
>> Good morning,
>>
>> Over the recent years there have been discussions about the ionic
>> residue left behind by alcohol when used as a cleaning agent. You
>> have me convinced. Now I have to convince my organization. Is there
>> some document, standard or other item which I can use as a reference.
>
>> Simply stating that "the experts on TechNet said so" won't carry
> enough weight.
>> Not would using alcohol for cleaning would be a change and we all know
>
>> change = death. Just because something has been done one way for 20+
>> years does not make it right. Hopefully I chose the right windmill to
>
>> tilt at.
>>
>> Phil
>>
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