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PirateDocBrown
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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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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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The Volatile Chemist
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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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j_sum1
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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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dan.vlad
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Unknown glasware
Maybe somebody know something about this..
  
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j_sum1
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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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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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Texium
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Threads Merged
5-1-2018 at 05:51 |
SWIM
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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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NeonPulse
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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.
  
[Edited on 8-1-2018 by NeonPulse]
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Harristotle
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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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SWIM
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This thing really reminds me of a Mcleod gauge, but not quite.
Is this just another form of vacuum gauge, or something else?
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dan.vlad
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| Quote: Originally posted by SWIM | 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? |
Those 3 necks all acces the same chamber !
This is only one chamber ,with 2 jacket
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Dr.Bob
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Here is an odd thing that I have, not sure what it for, it is a non-equilibrated addition funnel with a water coil going through it. Not sure if
intended as a way to heat or cool something being added to a flask, or maybe a weird condenser that could be used as part of a Dean Stark type trap or
what. It is also in 29/42 both ends.
If anyone can tell me what it is for for, they can buy it cheap. :-)
I have a lot of stuff like this that I am slowly trying to figure out what it is, so I can try to sell it or find it a good home. I'm slowly trying
to catch up with some of the pile of stuff, there is so much odd stuff here.
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j_sum1
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Maybe an addition funnel for something like phenol with a melting point in the slightly-above-room-temperature zone? At least that's what I would use
it for.
Does not seem like a dumb idea to me.
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The Volatile Chemist
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It was...a custom piece for someone who couldn't afford to buy a dimroth and another addition funnel...!
It looks like it's 29/42 or 29/ something - if it were a 24/ piece I'd look into buying it...
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RogueRose
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Some odd glassware in an auction lot with bidding soon to be expired
So I am looking at an auction lot and, as usually, the images look like they were taken with a 1992 cell phone, inside a sock as a filter. I just
can't understand how about 70%+ of these major liquidation auctions (selling stuff to pay creditors) can't get clear pictures but they'll take 10
blurry pics of the same item when one clear pic would be better than the entire 10!
The original resolution of these pics is 480 x 320! IDK if a lower resolution is possible...
So I'm trying to identify what is in these pictures and some are pretty easy to identify but some are a little more ambiguous especially the last 2
pictures.
Top shelf looks like mostly erlenmeyer flasks, some with vacuum take-offs and some beakers. Bottom is volumetric flasks, grad cylinders, dessicant
chamber, test tube rack & more flasks
top shelf: More erlenmeyer flasks (250ml or maybe 400 or 500ml??)
Bottom shelf. Curious what is in the cardboard! some crystalization dishes, small beakers and flasks, a large beaker in the back (probably 2 - 3L and
some nice parafilm. What is to the right of the cardboard boxes, they look like rullers but IDK why those would be there - is there something that is
similar to this in chem equipment?
The top shelf has a lot of long glassware which I'm not sure what it is at all, maybe volumetric pipettes? Suggestions here are greatly appreciated!
On the bottom shelf, the wrapped item in the back is impossible to distinguish but towards the left in the very back (not in circle) there looks to be
a glass tube, maybe more pipettes. Then the device in the circle on the bottom.
lots of lab stands and accessories and possibly some measured pumping dispensers. I have no experience with these and an wondering what value these
have.
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j_sum1
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I think you have identified everything pretty well.
Photo three might be a power supply or magnetic stirrer or something analytical. Hard to tell from a grey box. That might be a ceramic mat or perhaps
lab jack to the left of it.
Last photo looks like it might be something for automated titrations.
Vacuum desiccator alone is worth a bundle. If you can get tbis lot for a good price then grab it.
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Cardie
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Moin,
does anyone know what this is? Bought it from ebay with other glassware and i dont have a clue what it could be.
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CharlieA
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I saw these used in an apparatus for running a biochemical reaction that produced/or used some gas or other. I can't recall any more specifics about
it (this was ca. 55-60 years ago and my memory fails me  ).
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CharlieA
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an analytic apparatus that employs a manometer to determine changes in the amount of gas produced or absorbed by a test sample kept at constant
temperature in a flask of constant gas volume and is used especially in the study of cellular respiration and metabolism and of some enzymatic
reactions (as fermentation)
Warburg Apparatus Medical Definition | Merriam-Webster ...
www.merriam-webster.com/medical/Warburg%20apparatus
This came to me as I got up this morning at 5 a.m.! I found this with a Google search. That also had some pictures of the apparatus.
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RogueRose
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I just got a few pieces in a lot that I'm not sure what they are.
IDK what the thing is on the bottom, I think it is a condenser of some kind. The part on the right (in pic) is the top and it is open so that maybe
something can drip into it, fall to the bottom, then the liquid would flow up the curled tubing and out the side middle but it also has a
port/connection (2nd from right in pic) that would allow to feed with tube or over-flow - maybe there needs to be a cap/lid then the coil would be
sealed. The outer jacket has 3 ports the top two on each side and one on the bottom.
Have no clue. Was told it might be a "freeze dryer" it is very thick, has an inverted cone on the inside (could be used to fill with water liquid for
cooling?) then the 4 female joints on the bottom and the bottom male joint bottom dead center.
I'm guessing this is just a hose manifold for either liquids or vacuum.
This is very similar to the above unit but is smaller, has 3 female joints on the side and a female joint bottom dead center.
This is the view of above unit from top showing inverted cone. The larger one looks basically like this as well.
Bunch of odd pieces of glassware, most have many joints for liquid or vacuum.
Have absolutely no idea what this is. It's about 3ft tall. It does say "don't wash with organic solvent" because it the base and top screw cap are
made of acrylic/polycarbonate and some other white plastic on top.
These are upside down, the bottom (in the pic) is open and can hold fluid. I think these look like cold traps somewhat
Not sure what the top item is. It looks like it has an aerator on the bottom or it is a pad, it screws into a bottle
Maybe some kind of glass mortar & pestle. It's called a "glass homogenizer" but IDK if it is for liquids or solids.
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LearnedAmateur
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| Quote: Originally posted by RogueRose |
Maybe some kind of glass mortar & pestle. It's called a "glass homogenizer" but IDK if it is for liquids or solids.
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It’s used to grind tissues for DNA/RNA extraction (and I presume other tissue studies), so you’re on track with the M&P idea. Doesn’t seem
like it but they can fetch over £20-30 for both pieces! The actual name is a Dounce homogeniser, and you can get PTFE variants too.
[Edited on 7-4-2018 by LearnedAmateur]
In chemistry, sometimes the solution is the problem.
It’s been a while, but I’m not dead! Updated 7/1/2020. Shout out to Aga, we got along well.
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Dr.Bob
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| Quote: Originally posted by RogueRose |
Maybe some kind of glass mortar & pestle. It's called a "glass homogenizer" but IDK if it is for liquids or solids. |
I agree with Learned that they are tissue homogenizers. If anyone wants some, I have a box full of them somewhere. need to list on Ebay some day
in my spare time, but there are so many different brands, sizes, and variations that it will take me a month to list them there. And I have no
desire or need to homogenize anything, so I can't use them myself.
If anyone wants some, please do let me know. Any biochemists out there?
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Vosoryx
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Any ideas?
It's a a glass frit, but doesn't seem like a filter... maybe it's for filtering gases or something?
Thanks.
"Open your mind son, before someone opens it for you." - Dr. Walter Bishop
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Brom
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A friend of mine picked this up for me at a thrift shop type place for $6. It looks like a thistle tube with a stopcock but why the vacuum take off
barb? Has any one seen or used one like this before?
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