Abromination
Hazard to Others
Posts: 432
Registered: 10-7-2018
Location: Alaska
Member Is Offline
Mood: 1,4 tar
|
|
Separation Funnel as Addition Funnel
Short and simple question: can I use a separation funnel as an addition funnel? I have a separation funnel but need an addition funnel and cant afford
one. The reaction is open to the air (via double necked flask and is not under vacuum.
List of materials made by ScienceMadness.org users:
https://docs.google.com/spreadsheets/d/1nmJ8uq-h4IkXPxD5svnT...
--------------------------------
Elements Collected: H, Li, B, C, N, O, Mg, Al, Si, P, S, Fe, Ni, Cu, Zn, Ag, I, Au, Pb, Bi, Am
Last Acquired: B
Next: Na
-------------- |
|
|
j_sum1
Administrator
Posts: 6320
Registered: 4-10-2014
Location: At home
Member Is Offline
Mood: Most of the ducks are in a row
|
|
Should not be a problem. It is commonly done. The only issues are when you have a closed system and need pressure equalisation or when you need to
protect your reagents from the air.
|
|
|
DraconicAcid
International Hazard
Posts: 4333
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline
Mood: Semi-victorious.
|
|
I'd done that several times. Works nicely, as long as you don't need to work under nitrogen.
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.
|
|
|
Abromination
Hazard to Others
Posts: 432
Registered: 10-7-2018
Location: Alaska
Member Is Offline
Mood: 1,4 tar
|
|
Thanks, I dont plan on working under vacuum that often.
List of materials made by ScienceMadness.org users:
https://docs.google.com/spreadsheets/d/1nmJ8uq-h4IkXPxD5svnT...
--------------------------------
Elements Collected: H, Li, B, C, N, O, Mg, Al, Si, P, S, Fe, Ni, Cu, Zn, Ag, I, Au, Pb, Bi, Am
Last Acquired: B
Next: Na
-------------- |
|
|
JJay
International Hazard
Posts: 3440
Registered: 15-10-2015
Member Is Offline
|
|
The major advantage of doing additions with a jointed sep funnel instead of an addition funnel is that you can keep adding stuff to the funnel while
your reaction or distillation is running. It's nice to have a pressure equalizing funnel for running reactions that require extremely dry conditions
or inert gas, and you also don't have to monitor the reaction as closely at the end of an addition with a pressure equalized funnel.
I use my non-equalized funnel more often than my equalized funnel, but they both get used a lot.
[Edited on 26-8-2018 by JJay]
|
|
|
arkoma
Redneck Overlord
Posts: 1761
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
Member Is Offline
Mood: украї́нська
|
|
Actually the price of Chinese glass is very reasonable, shipping takes about ten days which is not instant gratification, but makes my purchases
affordable. I have both sep and addition, in 250ml size, and have MAYBE $25US in both.
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
|
|
|
TheMrbunGee
Hazard to Others
Posts: 364
Registered: 13-7-2016
Location: EU
Member Is Offline
Mood: Phosphorising
|
|
I did this while waiting for real thing. It is actually amazing how much you can improvise.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
