Atrum
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40/35 Ground Glass Vacuum Stopcock Needed
Hello all,
Recently I broke the two hose barbs on my 40/35 ground glass stopper with stopcock for my vacuum desiccator. I am looking for a replacement.
So far my searches on ebay and google have come up empty because this is such an uncommon size.
Does anyone have one for sale?
"Experience is my one true mistress and I will cite her in all cases. Only through experimentation can we all truly know anything." ~Leonardo da Vinci
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j_sum1
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This guy does:
http://www.ebay.com.au/itm/SGA-Glass-40-35-Hollow-Ground-Pen...
Edit. I should read more carefully. Vacuum stopper.
Can you make good use of a trap?
http://www.ebay.com.au/itm/Kontes-Glass-1-2-Hose-40-35-Large...
[Edited on 29-11-2015 by j_sum1]
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Atrum
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I saw that one, but mine has a stopcock in it with a T bore in it with 2 hose barbs.
Here is a picture.
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Atrum
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Hmmm, I suppose i could find a way to close off one of the tubes and use it.
Especially since my vacuum desiccator is the only piece of equipment i have with a 40/35 joint.
[Edited on 11-29-2015 by Atrum]
"Experience is my one true mistress and I will cite her in all cases. Only through experimentation can we all truly know anything." ~Leonardo da Vinci
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j_sum1
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Rubber or teflon bungs might help.
Or, here is another idea.
http://www.ebay.com.au/itm/Glass-Reducing-Transfer-Adapter-f...
Then you can use something standard sized for your vacuum attachment.
Better quality probably
http://www.ebay.com.au/itm/Glassware-connection-Adapter-Male...
[Edited on 29-11-2015 by j_sum1]
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Texium
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That's a 34/35 though, it's not as wide as the 40/35 and thus won't fit.
I did find this one that would work: http://www.ebay.ca/itm/Glassware-connection-Adapter-From-Mal...
[Edited on 11-29-2015 by zts16]
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j_sum1
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Score zts. I did scan the site but must have overlooked that one.
However, I think the smaller one would still work. It will just drop into the joint a bit further. There is no lip or shoulder that will prevent it
reaching a sealing position.
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Atrum
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That just might work. Then I can get a 24/40 vacuum adapter.
I never thought to check Ebay Canada.
Thanks man.
[Edited on 11-29-2015 by Atrum]
"Experience is my one true mistress and I will cite her in all cases. Only through experimentation can we all truly know anything." ~Leonardo da Vinci
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Recently acquired elements: Iodine , Cobalt, Tungsten, Silicon |
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