PrussianBlue
Harmless
Posts: 38
Registered: 20-1-2018
Member Is Offline
Mood: No Mood
|
|
RotoVap
I was generously gifted an older rotary evaporator today and subsequently saved it from the trash. The issue is, however, that I have no idea what I
may use it for at this point. Does anyone know of any common amateur chemistry uses for a rotovap? It is fully functional and came with a condenser
and collection flask, but no bump trap or evaporating flasks. I'll try to add some photos when I get a chance.
|
|
|
weilawei
Hazard to Others
Posts: 130
Registered: 3-12-2017
Member Is Offline
Mood: No Mood
|
|
Use it to evaporate solvents! Boy did you ever strike it lucky! Rotavaps are priceeeey.
|
|
|
Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
Member Is Offline
Mood: PhD candidate!
|
|
You'll want to buy a bump trap for sure (Dr. Bob sells them for $20, I just bought one from him myself). Any round bottom flasks will work with it.
Did it come with the water bath? You'll also want to get a vacuum pump to go with it if you don't have one already. A cheap single stage rotary vane
one ($30-50) is fine.
As far as uses go, it makes distilling solvents off of products at least 10 times easier. Once you start using one, you'll never want to go back,
which is why I decided to buy one for home after a couple semesters in a research lab! Say goodbye to standing over an open beaker of boiling solution
for hours and having to take care not to burn your product when it boils down to dryness.
|
|
|
PrussianBlue
Harmless
Posts: 38
Registered: 20-1-2018
Member Is Offline
Mood: No Mood
|
|
Yes, a water bath was included. Just tested the mounted motor, spare motor, and the heating element and everything seems to work well. I haven't taken
any photos yet, but it looks much like the one in this link: https://www.ebay.com/itm/Vintage-Brinkmann-Buchi-W240-Rotava...
|
|
|
PrussianBlue
Harmless
Posts: 38
Registered: 20-1-2018
Member Is Offline
Mood: No Mood
|
|
Here are a few pictures of the rotovap and flash evaporator. Does anyone know much about these models?
|
|
|
PrussianBlue
Harmless
Posts: 38
Registered: 20-1-2018
Member Is Offline
Mood: No Mood
|
|
.
|
|
|
PrussianBlue
Harmless
Posts: 38
Registered: 20-1-2018
Member Is Offline
Mood: No Mood
|
|
.
|
|
|
Vosoryx
Hazard to Others
Posts: 282
Registered: 18-6-2017
Location: British Columbia, Canada
Member Is Offline
Mood: Serial Apple Enjoyer
|
|
Beautiful.
My knees are weak and i'm envious of you... Have fun with that!
"Open your mind son, before someone opens it for you." - Dr. Walter Bishop
|
|
|
Tsjerk
International Hazard
Posts: 3022
Registered: 20-4-2005
Location: Netherlands
Member Is Offline
Mood: Mood
|
|
They are great for any organic synthesis! Solvent evaporation is what they are used for. Also quick and dirty distillations can be done with a
rotovap.
Just be patient when using it. Set the bath temperature not to high and don't set it higher when getting impatient.
[Edited on 9-3-2018 by Tsjerk]
|
|
|
Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
Member Is Offline
Mood: PhD candidate!
|
|
Ha, that's pretty much the exact one that I have- yours just has a fancier base
|
|
|
Reboot
Hazard to Others
Posts: 141
Registered: 8-8-2017
Member Is Offline
Mood: No Mood
|
|
The foodies use them to condense things (like reducing fruit juice to syrup under vacuum, so the flavor won't be changed by the high temps or normal
boiling.) With a normal distillation system you can end up with a foamy mess very easily, but since a carefully set up rotovap doesn't need to
actually boil the liquid to evaporate it....
|
|
|
PirateDocBrown
National Hazard
Posts: 570
Registered: 27-11-2016
Location: Minnesota
Member Is Offline
Mood: No Mood
|
|
I have one of these. I got it surplus, and it's pretty dirty. Haven't plugged it in yet, no point, unless I can find a condenser to fit it.
Phlogiston manufacturer/supplier.
For all your phlogiston needs.
|
|
|
VSEPR_VOID
National Hazard
Posts: 719
Registered: 1-9-2017
Member Is Offline
Mood: Fullerenes
|
|
Where did you get it? From who's trash? I might want to duplicate your results
Within cells interlinked
Within cells interlinked
Within cells interlinked
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
