Organikum
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Glassware - whats this again?
What is it good for? I have seen this already and I think I also already knew already its purpose but I cannot remember.
I first thought splashguard, but thats wrong, for there is no way stuff could run back...
thx
/ORG
 
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jamit
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Does anyone know what these adapters are called or what it's used for?
 
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elementcollector1
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It would appear to be some type of 'cold finger' condenser...
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Hexavalent
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jamit, the second image appears to be a three-way stopcock for manipulating gases and vacuum.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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Funkerman23
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Hold on here.. Organikum's glass.. the center of that glass looks an awful lot like the siphon drain of a soxhlet extractor. part of some custom
extraction assembly maybe?
" the Modern Chemist is inundated with literature"-Unknown
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Organikum
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Naa, dont think this works this way. It is a tube protruding up and over this a second inverted tube down with holes at the bottom. Makes a rather
narrow passage, I guess it is something to slow flow down, not a splash gueard but a demister in Steamdistillations and such?
I would really love to know as it was in the package by accident and I have to decide if I send it back or not and this is connected to other items
(those missing).....
I think it goes retour
What says that in less then a day after somebody will tell what great and rare almost priceless piece of glass I have got and.....
/ORG
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Organikum
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another
Hey! Really nobody knows what the first piece of glassware is good for? I cannot believe it!
But I got anotherone actually I got 5 of them, what happens when buying without having read the description properly 
Was very cheap and it may come handy when a piece of G20 glassware fails for grounded joints for this kind of glass are not produced anymore.
WHAT IS IT?
I thought maybe some combined splash-anti-bump but this would only work for 250ml flasks? Joints are NS29/32 and yes, it is upside down on the
pictures.
 
[Edited on 15-3-2013 by Organikum]
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Furboffle
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organikum - first one appears to be a percolator. one thing I haven't used in a lab to know its purpose for legit use. but in bongs it acts to cool
smoke before inhaling. I have used a form of one, a one way valve, basically identical function, to make alcohol. seal your mash and yeast in a bucket
or something, attach one of these to the top to let CO2 out but keeping outside air out to prevent the yeast from forming acetic acid rather than
ethanol.
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Dr.Bob
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Yes, that is a 3 way valve for doing vacuum and gas cycles, such as for degassing a reaction (switch from vacuum to nitrogen each for a few seconds to
completely remove traces of air from a reaction, even with a low vacuum, does not waste as much nitrogen as using a large amount of N2 to sweep the
air out. Also great for hydrogenations and other gas reactions, where you want to remove the air, then replace it with another gas.
The first thing, I don't know what it is, but maybe you can post more photos-maybe someone can figure out what it is good for, as I also have one that
I don't know what it is good for. I don't think it is any sort of condenser or cold finger, but some sort of valve, maybe for air free work, not
sure.
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Organikum
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Furboffle is right, after taking another look and conducting a quick experiment I agree that it is a valve to keep air out, similar to those used in
brewing just looking different.
Well there is still the second item, items actually, to be uncloaked....
regards
/ORG
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jamit
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Quote: Originally posted by Dr.Bob  |
Yes, that is a 3 way valve for doing vacuum and gas cycles, such as for degassing a reaction (switch from vacuum to nitrogen each for a few seconds to
completely remove traces of air from a reaction, even with a low vacuum, does not waste as much nitrogen as using a large amount of N2 to sweep the
air out. Also great for hydrogenations and other gas reactions, where you want to remove the air, then replace it with another gas.
The first thing, I don't know what it is, but maybe you can post more photos-maybe someone can figure out what it is good for, as I also have one that
I don't know what it is good for. I don't think it is any sort of condenser or cold finger, but some sort of valve, maybe for air free work, not
sure. |
Thanks Dr bob for the info.
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Organikum
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But now for real
The first item in this thread is not what we thought it might be but its a drying tube for drying gases by a solid drying agent.
And variations of it are to be found and sold here.
The other item I asked for is probably a way to add quick and easy two to three more stages to an distillation. Vapors going through liquid collecting
in it, condensing and reboiling the lower boiling fractions preferably.
I discovered something pretty similar in:
Handbook of Laboratory Distillation With an Introduction to Pilot Plant Distillation
by Erich Krell 1982, Elsevier.
A pretty good book on the topic btw. recommended for being understandable and inspirational. Found it on Scribd.com.
/ORG
[Edited on 24-5-2013 by Organikum]
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Fantasma4500
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is there anybody that knows how to find out without breaking say.. a little tube if the tube is or is not meta borosilicate glass?
i have 2 tho.. but glass that implodes is messy af :s
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IrC
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Not trying to hijack your thread Organikum I just did not want to start a new one and guessing odd glassware seemed to fit in here. Long ago a member
posted a link and pic to this item on ebay. The hardware hacker in me just had to know what odd project I could use it in, so I bid the starting $9
and won it. Since I cannot find that old thread I'll ask here if you do not mind. Does anyone know what this thing is or what function it provides? It
comes apart easily, appears it was meant to have some kind of silicone rubber gasket and clamp to hold it together (both missing but traces on the
base suggest a red silicone rubber gasket once existed). Three ports for either a gas or liquid. One end port is flush with the base I assume meant to
either fill or evacuate the inner glass portion. The center inlet goes inside the center of the shiny metal portion, other side port clearly was the
other end of this path as if the metal portion does some sort of cooling function.
  
"Science is the belief in the ignorance of the experts" Richard Feynman
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Organikum
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No problem.
And damn it, I have seen this kind of thig you show already, I remember the wire thing, but canot remember anything else...
What metal is the silvery and more interesting actually whats the wire from?
/ORG
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Endimion17
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I've seen that thing few years ago. 
http://www.youtube.com/watch?v=A1WvLB8P-DM
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IrC
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Studied it for a while and cannot tell what metal or alloy it is but it clearly is some kind of condenser from the inlet/outlet. Yet the glass portion
only has one port so no flow through it is possible. Looks like all you can do is pull a vacuum assuming the missing gasket would hold one. It is
machined from a single piece with no seams except at the base and no welding except at the point the ports meet the base. The eyelets the wire hooks
to are machined out of the single piece, they are not attached they are part of the single solid oddly shaped structure. It almost appears the entire
thing was created by explosive forming but the surface is absolutely smooth everywhere except where it bonds to the base. The wire appears to be
soldered together, the only cheap looking construction. Some kind of odd cryo related item? Or some kind of trap? What the hell is the reason for the
wire structure? Why the hell did I buy it? I still have not figured out a way to use it in any kind of weird science but the glass part is solid
quartz with a nicely shaped flange so I guess if nothing else it would make a skinny bell jar? I can surmise it was made to take either a fairly hot
or possibly cryo cold operating temperature, whatever it was supposed to do.
"Science is the belief in the ignorance of the experts" Richard Feynman
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chemcam
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That is nightmare fuel.
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DutchChemistryBox
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I thought it would be a little useless to make a new topic about my glassware, so I'll ask it here.
I've just got some glassware and I don't know what to do with it.
I suppose that the big tube is used for catching gasses. But is that interesting for a home lab? Or is it smarter to sell it and buy new (more
usefull) glassware from it? Maybe there are some interesting experiments where such glassware would be nice.
I have no idea what the little tube is, is it a sort of vacuum bell jar or something?
 
[Edited on 9-6-2013 by DutchChemistryBox]
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elementcollector1
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I would keep it - use it as a test to determine if you've produced gases by color change, use it to dispense gases, etc...
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phlogiston
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Endimion, what the actual fuck man. That's a part of youtube I'd rather avoid.
[Edited on 9-6-2013 by phlogiston]
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"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
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elementcollector1
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More like "Endi, what the actual fuck". Maybe if it were used as the prop in the movie in question, but...
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