1281371269
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 312
Registered: 15-5-2009
Member Is Offline
|
|
Vacuum Calculations
Today I finally got the voltage adaptor for my vacuum pump and turned it on. Not particularly exciting, and from the looks of things suitable neither
for reduced pressure distillations (too weak a vacuum) or for acting as the extractor unit in the fume hood I'm building (too little airflow).
The literature claims the pump produces a vacuum of 280mbar of mercury. How would I calculate the boiling point of water at this pressure so I can
test the pump experimentally?
|
|
1281371269
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 312
Registered: 15-5-2009
Member Is Offline
|
|
Thanks. How do I convert mbar to torr?
Edit: Ignore that question. Converted it online, it's 210.
[Edited on 30-9-2010 by Mossydie]
|
|
Magpie
lab constructor
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
I think I can find a better plot for the temperatures near room temperature.
Again from Wiki:
[Edited on 30-9-2010 by Magpie]
Attachment: Pressure units.doc (33kB) This file has been downloaded 573 times
This looks more useful:
http://intro.chem.okstate.edu/1515sp01/database/vpwater.html
[Edited on 30-9-2010 by Magpie]
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|