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Author: Subject: Thermometer Adapter
VSEPR_VOID
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[*] posted on 5-6-2018 at 12:30
Thermometer Adapter


This is my first thermometer adapter. I have been doing chemistry for years but never bothered doing things that required monitoring the temperature of a distillation, until now.

How do I use this? How do I get the thermometer inside it? Do I break the center of the plastic O-ring? I do not want to break something without knowing I should. It will be difficult to find a new one and have it shipped from China.

If I use this one enough I will upgrade to a full glass version.

scv_15282295208401533913166.jpg - 116kB

[Edited on 5-6-2018 by VSEPR_VOID]




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TheMrbunGee
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[*] posted on 5-6-2018 at 12:55


Thermometer goes trough the middle of o-ring, and the cap screws the o ring on adapter.

I guess your o-ring doesn't have hole, so you make one.

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VSEPR_VOID
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[*] posted on 5-6-2018 at 13:57


Thanks



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PirateDocBrown
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[*] posted on 5-6-2018 at 14:00


Run out to the hardware store and get several O rings. They will break, as chemicals attack them over time.



Phlogiston manufacturer/supplier.

For all your phlogiston needs.
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VSEPR_VOID
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[*] posted on 5-6-2018 at 14:08


Can I get any O-rings that can stand up to nitric acid?



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kulep
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[*] posted on 5-6-2018 at 14:18


Glass, completely sealed and a cheap thermocouple/thermometer (like the tm-902c) make a nice combination
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UC235
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[*] posted on 5-6-2018 at 14:19


Quote: Originally posted by VSEPR_VOID  
Can I get any O-rings that can stand up to nitric acid?


Viton o-rings will hold up to nitric acid and many things that destroy EPDM o-rings. They however, will not hold up to many other things in the lab like methanol, glacial acetic acid, ammonia, ether, or acetone.
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VSEPR_VOID
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[*] posted on 5-6-2018 at 15:31


Quote: Originally posted by UC235  
Quote: Originally posted by VSEPR_VOID  
Can I get any O-rings that can stand up to nitric acid?


Viton o-rings will hold up to nitric acid and many things that destroy EPDM o-rings. They however, will not hold up to many other things in the lab like methanol, glacial acetic acid, ammonia, ether, or acetone.


I think at that point I will just buy a glass adapter, they are not much.




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[*] posted on 6-6-2018 at 12:13


Hmm. Do you mean this kind?

https://www.ebay.com/itm/24-40-Glass-Thermometer-Adapter-100...

We used to call such an item, "a thermometer well".

Sealing should no longer be an issue.
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