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Dr.Bob
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The spring barbs are for holding two pieces tightly together with a small spring (usually 2 or 3 of them around the joint). This was done before
Keck clips existed, and is still used in some cases, especially when heating the glassware, as keck's melt easily.
#6 could also be used as a vacuum trap for use with an aspiraor, such that the vacuum hose from the aspirator connects to the inlet tube, which can
suck up any water that gets in the trap, and a stopper with a short tube is put in the top, so that it does not pull any water back in case the vacuum
weakens. Water aspirators often change the vacuum they pull based on water temp and pressure, and they can sometimes pull water back from the pipe,
so using a trap is a good idea. Most people just use a filter flask, but that would work better.
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NOV:5
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Anybody have any idea what this is? They are all over ebay..think I just bought 6 for $20...
Thanks
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IrC
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"They are all over ebay"? I searched for "chemistry glassware" in 'Healthcare, Lab & Life Science'. 305 hits, I looked at the images of the
auction for all 305. Not one had your item. Can you provide a specific link so we can see?
"Science is the belief in the ignorance of the experts" Richard Feynman
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NOV:5
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Well there is the one I posted item #301294363497
The one I bought, item #121420981364
One I was watching, item #121396976090
And I've seen several as part of lots...you might try searching "vintage lab glassware" or some variant with " lot" included as a term. The pic I
posted has a clear image of the device, and the helical copper strip is visible...I'd just like to know what they are..
EDIT:
The items I bought include a stopper and short curved tube in the empty side, like it was intended as a gas discharge...
[Edited on 7-9-2014 by NOV:5]
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amazingchemistry
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Need help identifying mystery glassware
Hello,
I was doing some inventory at school and found the following pieces of glassware. I have no idea what they are and would appreciate any help figuring
that out.
[Edited on 22-10-2014 by amazingchemistry]
       
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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amazingchemistry
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Here are some more
      
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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DJF90
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The first one looks like a fractional distillation reflux splitting head. The two bulbs with stopcocks on each end are calibrated gas bulbs, used for
charging known volumes of gaseous components to reactions. Not sure about the third item, but the last one looks like a gas washing assembly (dreschel
bottles are more common but for bubbling through sulfuric acid or mercury the smaller volume would be advantageous.
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DJF90
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Second set of pictures: the first one looks to be a levelling bulb for a gas burette. The second and third is a right angled high vacuum tap, and
fourth is a double oblique high vacuum tap. 5 is a gas washing bottle (dreschel), 6 is a vacuum dewar flask that is yet to be silvered, evacuated and
sealed. 7 is a guard tube/"calcium chloride tube"
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IrC
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I tried long ago to see if anyone knew what this was. I still don't know so here it is again. Maybe a newer member knows.
  
Forgot to mention but the 2 ports left, center connect through the center metal portion. Sealed away from inside it appears like a cooling liquid
inlet/outlet. The right port allows one to evacuate or fill the inside portion of the glass housing.
[Edited on 10-22-2014 by IrC]
"Science is the belief in the ignorance of the experts" Richard Feynman
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DJF90
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I could not believe my eyes when I saw this apparatus in an old Ind Eng Chem paper (I was browsing online)!
Attachment: Wiley extraction apparatus.pdf (346kB)
This file has been downloaded 1782 times
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amazingchemistry
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Thank you so very much DJF90!! The third item of the first set seems to be some sort of adapter, the inlet/ outlet obviously connects to a hose of
Some kind. I dont know about the fourth item on the first set though. Seems like the dreschel bottles are able to stand on their own, whereas this is
not (the "bottom" is rounded, like a test tube's). Would this matter? Am I wrong in a assuming that those two pieces of glassware even go together? I
found them in a box, sort of jumbled , so I don't know. For the second set, I have my doubts about the Dewar flask being a Dewar flask, as all other
items on the set seem to relate to gas chemistry somehow.
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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IrC
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Quote: Originally posted by DJF90  | | I could not believe my eyes when I saw this apparatus in an old Ind Eng Chem paper (I was browsing online)! |
Thanks. Now that I know the name I found all kinds of information on it. No idea what I will do with it but at least the mystery is gone.
"Science is the belief in the ignorance of the experts" Richard Feynman
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Dr.Bob
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The first set of pictures, bottom left is a vacuum desiccator vacuum inlet. It sits on top of the lid and can be turned to pull a vacuum, then turned
to seal it. Just replaced one of those today, so it jumped out at me.
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IrC
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| Quote: Originally posted by DJF90 | | The two bulbs with stopcocks on each end are calibrated gas bulbs, used for charging known volumes of gaseous components to reactions
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I have several of these and I have been told they are also used as gas collection bulbs. I bought them years ago to collect Deuterium gas from heavy
water and Lithium metal. My goal was dual as I also wanted the Deuteride but never built the setup to react Li at 600C with D2. I did collect the
LiOD, Lithium deuteroxide but have never found anything of interest to do with it other than coating the inside of 2 Be half spheres (parts of a very
high speed gyro) with Am241 inside in experiments building Neutron sources to test my detectors with. The bulbs with stopcocks worked very well
collecting D2 and allowing it to be used in experiments.
I still have no clue what to use the Wiley extraction apparatus for other than something odd to look cool on the shelf.
"Science is the belief in the ignorance of the experts" Richard Feynman
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amazingchemistry
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Thank you very much Dr. Bob. Now I know what most of these are =)
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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amazingchemistry
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More mystery glassware
Sorry for relying too much on you guys, but, having never worked with anything other than simple organic an inorganic glassware I'm at a loss as to
what these are and don't really even know how to start looking. I will post guesses for the items I can guess at. Thank you very much.
        
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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gdflp
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Bottom left I believe is a gas take off adapter, bottom right is just a straight vacuum adapter for distillations instead of the normal bent one.
[Edited on 10-29-2014 by gdflp]
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DraconicAcid
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Top left looks like part of a bubbler; the 2.3 MB in the middle right is a stopcock to be attached to a round-bottom flask with ground glass joints.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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Lambda-Eyde
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Number 1 is just a tubing inlet/bubbler adapter with a ball joint, #2 is a stirrer bearing, #3 is basically the same as the first one, #4 is an air
condenser (unless there are indentations at the bottom; I can't see any in the photo), #5 looks like a stopcock (with the key missing) with a ball
joint, #6 is an aspirator (a vacuum pump that runs on water), #7 is just a stopcock adapter, #8 looks like a viscosimeter (or something? At least used
for measuring viscosity), and #9 is just a straight vacuum adapter.
And people, keep in mind that using designations such as "in the middle" or "bottom left" is pointless, as the orientation of the pictures depends on
your screen resolution.
This just in: 95,5 % of the world population lives outside the USA
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aga
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"bottom left" ?
Who's bottom ?
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amazingchemistry
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I was thinking #5 was a ball jointed connecting tube only, since it doesn't seem to have any sort of special place where a stopcock would go. I'd be
at a loss for what to call it other than "weirdly angled connecting tube" though. As far as #6, I didn't know they made glad aspirators, I have only
Seen plastic and metal Ones. That's neat. # 5 looked like an air condenser to me but I wanted to make sure (having only worked with 14 /10 and 19/22
glassware it seemed a bit strange to me)
[Edited on 29-10-2014 by amazingchemistry]
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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amazingchemistry
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hopefully last batch
Here are some more
       
Always remember to check your pride at the door and ask that "stupid" question. Learning comes from having your "stupid" questions answered.
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numos
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I also had a question on glassware, and although it's not a mystery of what it does, I am unable to find it's name, much less a supplier.
http://41.media.tumblr.com/0699e98d85973620a1ca8ee0de5f4be3/...
The piece all the way on the left with the green stopcock, some kind of addition funnel, but how can I find them, what are they called? This is one of
Kristof's photo's and I've U2Ued him but he hasn't been on in a few months.
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Mailinmypocket
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Here you go! http://www.laboyglass.com/air-tite/tube-storage-high-vacuum-...
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Dr.Bob
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30-10-2014
from top left
1) vacuum trap 2) 24/40 sealed tube to dry samples in vials
3) bent adapter (allows connecting several large items to a multineck flask) 4) trap/bubbler
5) ??? 6) three way valve with storage bulb - not sure what it is for
7) vacuum trap 8) manometer (simple vacuum guage) ( I think)
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