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Author: Subject: Mystery Glassware Identification Thread
PirateDocBrown
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[*] posted on 15-12-2017 at 16:36


That kind of funnel/flask is an iodine flask. It's meant to be used to determine the degree of unsaturation of fats and oils.
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j_sum1
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[*] posted on 15-12-2017 at 16:45


Quote: Originally posted by PirateDocBrown  
That kind of funnel/flask is an iodine flask. It's meant to be used to determine the degree of unsaturation of fats and oils.

Ok Cool. Pity I broke it.

Still, I now have an erlenmeyer with a funnel on it and a ground neck that doesn't fit anything I have. I think it will get some use.
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[*] posted on 15-12-2017 at 17:57


Quote: Originally posted by j_sum1  
Exhibit B

No ground glass -- I guess it is designed for rubber stoppers. I guess you could add a straight tube and you would have a liebig. But is that the intent? Every application I have thought of comes just shy of being properly useful.
From what I've seen in Vogel's 3rd, that is indeed the outside half of a liebig condenser held together by corks.



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[*] posted on 15-12-2017 at 19:55


Ok then. It looks like it will be a pain to put the second cork in place. But certainly usable -- if I have a length of glass tube the right diameter.
I might just have to do some experiments where I go classical on the glassware.
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[*] posted on 5-1-2018 at 02:55
Unknown glasware




Maybe somebody know something about this..

30122014102.JPG - 2.2MB 30122014106.JPG - 1.9MB 30122014111.JPG - 2.1MB
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[*] posted on 5-1-2018 at 03:14


1 is some kind of jacketed reaction vessel.
3 is a bit like a Davies condenser -- it is a double surfacfe in the same fashion. But instead of Graham-style coils like a regular davies, it has the bulbs of an allihn. I think there comes a point where a condenser is a condenser and there is not always a huge benefit in making the design more complex.
2 also appears to be a condenser arrangement but looks like it has been put together for a specific purpose I can't realy imagine what it might be. The pear shaped vessel where condensation occurs looks to be rather inefficient. I am not sure why there is the unusual fitting at the end. Looks like it is for a rather large flask.

My guesses anyway.

There is a theread specifically for glassware questions. Perhaps a mod will be kind enough to merge this with it.




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Radium212
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[*] posted on 5-1-2018 at 05:04


The outer jacket in 1 may be a vacuum, so perhaps it was a vessel for a reaction where the temperature had to be kept constant?
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[*] posted on 5-1-2018 at 14:50


Kinda looks like a UV reactor, but not quite. (One on the left)

Do those 3 necks all access the same chamber, or do they access both the inside and the jacket adjacent?




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[*] posted on 7-1-2018 at 21:27


Today I happened to come across a box of glass in a second hand charity store, eyeing the contents I was thrilled to find several Burettes, Pipet tea, flasks, a Mari-jet water aspirator, loads of borosilicate tubing and solid rods. Got it at a good price 40$. One burette alone is that much so a bargain. There was one thing that stood out as unusual. It is a long glass tube 1m long with removable adapters at each end one side has hose barbs and the other was an adjustable spray nozzle. The whole box was donated by a retired chemist so it must have some kind of use in chemistry. Not sure what though.

A54A47A1-3CAF-4D47-8932-A2DFDBD68E9E.jpeg - 1.6MB C6EA4FF2-73DB-477F-AD53-34DF884D43A0.jpeg - 1.6MB 125AE425-E0A9-40DE-A238-5440EA80A401.jpeg - 1.2MB

[Edited on 8-1-2018 by NeonPulse]

FCC82F34-848C-433F-93FF-263D2FE3D490.jpeg - 1.7MB




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[*] posted on 8-1-2018 at 00:04


It is a chromatography column, made by Pharmacia
Often filled with Sephadex/Sephacryl size exclusion or ion exchange resins.
Biochemists love them !
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[*] posted on 11-1-2018 at 15:11


This thing really reminds me of a Mcleod gauge, but not quite.
Is this just another form of vacuum gauge, or something else?




mcleodgage.jpg - 290kB




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