[Cz-chemistry] Need help in obtaining a suitable drawing for [[Vacuum Distillation]]
mbeychok
mbeychok at cox.net
Wed Feb 13 12:37:41 CST 2008
Richard:
Monday or Tuesday will be fine. When you send it to me, please send it
to my email address which is mbeychok at cox.net rather than through this
list, if you don't mind.
Milt
=====================================================
Richard Mayes wrote:
> Milton,
>
> I'll try to send a drawing of our vacuum distillation setup, it's
> quite simpler than the Perkin Triangle, but it works. It may be
> around Monday or Tuesday before I can get it out though.
>
> Richard
>
>
> On Feb 12, 2008 4:10 PM, mbeychok <mbeychok at cox.net
> <mailto:mbeychok at cox.net>> wrote:
>
> Richard:
>
> Thanks for your response. I assume that where you said /"When we
> do our air sensitive distillations, we use a modified Vigreux
> column coupled to a standard jacketed condensation tube and have
> nitrogen purges on everything while we distill the solution into a
> Schlenk-type vessel with a stopcock", /that it is not a vacuum
> distillation which is the subject of my "Vacuum distillation"
> article in CZ. Is that correct?
>
> However, I also assume that where you said "/Our other method, in
> the case of high boilers, is to use a short-path distillation head
> that we can hook up to a vacuum pump, similar to that found on the
> ChemGlass website (part # CG-1237). The other distillation head
> on the ChemGlass website (CG-1233) will also assist in air
> sensitive distillations", /that it is definitely a vacuum
> distillation. In that case, I would very much like to get a
> drawing of your setup/.
>
> /If at all possible, the drawing should be in the .png format and
> about the same size as that PerkinsTriangle drawing in Wikipedia
> at
> http://en.wikipedia.org/wiki/Image:Perkin_triangle_distillation_apparatus.png
> . As you can see it is about 450 x 650 px and 30 KB. It could even
> be twice that large if need be ... but no more than that. Just as
> in that Wikipedia drawing, the various parts should be numbered
> and you should please name each part for me so that I could
> create a legend (naming each numbered part) to be included in the
> drawing caption (not in the drawing itself).
>
> In my CZ article on "Vacuum distillation", I will revise the the
> "Perkin triangle apparatus*" *subsection and re-title it as well.
> Would you please be so kind as to also:
>
> (1) Suggest a new title for that section.
> (2) Send me about a 2-4 paragraph writeup on your method of
> distilling air sensitive materials. I am a retired chemical
> engineer, not a chemist. So your writeup will be better than
> anything I could come up with.
>
> Thanks again,
>
>
> Milton Beychok
> 1102 Colony Plaza
> Newport Beach, CA 92660, USA
>
> Phone: 949-718-1360
> Web Site: http://www.air-dispersion.com
> =============================================
> /
>
> /Richard Mayes wrote:
>
>> The pdf
>> http://www.chem.queensu.ca/courses/06/chem397/ManipAirSens.pdf
>> shows a set-up that achieves the same result of the Perkin
>> Distillation Head. I embarrassingly must admit that I had to
>> look up the drawing you cited even though we do air sensitive
>> distillations all the time in our lab (mainly metal chlorides and
>> alkyltin compounds). When we do our air sensitive
>> distillations, we use a modified Vigreux column coupled to a
>> standard jacketed condensation tube and have nitrogen purges on
>> everything while we distill the solution into a Schlenk-type
>> vessel with a stopcock. Our other method, in the case of high
>> boilers, is to use a short-path distillation head that we can
>> hook up to a vacuum pump, similar to that found on the ChemGlass
>> website (part # CG-1237). The other distillation head on the
>> ChemGlass website (CG-1233) will also assist in air sensitive
>> distillations.
>>
>> If you are interested in what we use, I can get you a drawing of
>> our setup in a few days.
>>
>> Richard Mayes
>>
>> Graduate Research Assistant
>> Inorganic Materials & Catalysis
>> Barnes Group
>> Dept. of Chemistry
>> University of Tennessee
>> Knoxville, TN 37996
>>
>> On Feb 12, 2008 2:05 AM, mbeychok <mbeychok at cox.net
>> <mailto:mbeychok at cox.net>> wrote:
>>
>> Hello all:
>>
>> Yesterday, I created a new CZ article [[Vacuum
>> distillation]]. The article has two main sections: "Vacuum
>> distillation in petroleum refining" and "Laboratory-scale
>> vacuum distillation".
>>
>> The laboratory section has a sub-section describing the use
>> of the "Perkin triangle apparatus" for vacuum distillation of
>> air-sensitive material. That section needs to be enhanced
>> with a drawing of the Perkin triangle apparatus that can be
>> uploaded into CZ. A drawing would be preferable rather than a
>> photo.
>>
>> An example of such a drawing exists in the Wikipedia
>> "Distillation" article but the author of that drawing has
>> declined giving us his real name, so we cannot obtain his
>> drawing from Wikimedia Commons and upload it into CZ.
>>
>> Can any of you provide a similar drawing that we can upload
>> into CZ? Failing that, can any of you provide a good, clear
>> photo of the Perkin triangle apparatus?
>>
>> I would be most appreciative of any help in this matter.
>> Thanks in advance,
>>
>> Milton Beychok
>> 1102 Colony Plaza
>> Newport Beach, CA 92660, USA
>>
>> Phone: 949-718-1360
>> Web Site: http://www.air-dispersion.com
>> =============================================
>>
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