Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
 Pages:  1  2
Author: Subject: Looking to buy a Buchi Rotavapor M Condensor
entropy51
Gone, but not forgotten
*****




Posts: 1612
Registered: 30-5-2009
Member Is Offline

Mood: Fissile

[*] posted on 7-9-2009 at 13:13


Quote: Originally posted by Picric-A  
Yea i know people think its bullshit but idgas, people are quick to make assumptions, ill live with that!


It's not an assumption. We've seen you caught in all kinds of lies and shady transactions.

Have you forgotten your research lab license? We haven't.
View user's profile View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 13:26


Fine whatever believe what you will.

can we go back to topic now?
View user's profile View All Posts By User This user has MSN Messenger
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:27


What more is there to say? What else do you want from us?
View user's profile View All Posts By User
kclo4
National Hazard
****




Posts: 916
Registered: 11-12-2004
Location:
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:28


When you spell myn, do you mean mine?



View user's profile Visit user's homepage View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 13:29


I was hoping somebody could point me in the right direction on where to purchase the parts i need, apart form Buchi itself
View user's profile View All Posts By User This user has MSN Messenger
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:31


We've told you that these parts are rare/scarce, or are in use. Best bet is to keep an eye out on ebay for someone selling the set of glass you need. And kclo4: yes he means mine, he's just using k3wl language :/
View user's profile View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 13:34


The sheet i uploaded doesnt show the vaccum adapter, do you think you could post a pic of yours DJ?
thanks,
View user's profile View All Posts By User This user has MSN Messenger
kclo4
National Hazard
****




Posts: 916
Registered: 11-12-2004
Location:
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:36


All right, I noticed it before in a thread I was skimming and wrote it off as some sort of brand haha and I just wanted confirmation that he actually meant mine.



View user's profile Visit user's homepage View All Posts By User
panziandi
Hazard to Others
***




Posts: 490
Registered: 3-10-2006
Location: UK
Member Is Offline

Mood: Bored

[*] posted on 7-9-2009 at 13:36


Picric-A if you can't get them form Buchi the only option left is keeping an eye open for them on surplus sites. Possibly Buchi does a glassblowing service and maybe able to make you the parts, although expect to pay something like £250 for the condenser!!!



View user's profile Visit user's homepage View All Posts By User This user has MSN Messenger
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:40


And then he needs flasks too, and the gaskets/connectors/seals. Sounds like an expensive job.

Although having the condensor made at the glassblowers allows you the option to do away with 50% of the gaskets and screw joints, as you can replace one with a standard taper (the vac. release valve) and the other with a spherical joint (as common with rotovaps for the collecting flask). However these will require some kind of vacuum grease to ensure a good seal.

[Edited on 7-9-2009 by DJF90]
View user's profile View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 13:43


Nope the flasks are simple quickfit flasks for the boiling flask, i have no clue what i need for the reciving flask. but yes its gonna be expencive. How much did you buy your m-type for DJ?
Thanks Panziandi
View user's profile View All Posts By User This user has MSN Messenger
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:48


You're wrong unfortunately. The standard taper piece you have there screws in, and is used as an alternatice to the screw threaded distilling flask I have. I know because mine (note: spelling) came with one. Try it, you can screw it out. There should be a white PTFE washer in there too. You need 3 of these for sufficient sealing in the whole glassware setup (one for collecting flask joint, another for the vacuum release tap joint).
View user's profile View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 13:52


Quote: Originally posted by DJF90  
You're wrong unfortunately. The standard taper piece you have there screws in, and is used as an alternatice to the screw threaded distilling flask I have. I know because mine (note: spelling) came with one. Try it, you can screw it out. There should be a white PTFE washer in there too. You need 3 of these for sufficient sealing in the whole glassware setup (one for collecting flask joint, another for the vacuum release tap joint).


Wrong about what? sorry i dont quite understand. Does that mean i cant use a standard quickfit 14/23 flask with the rotovap?
View user's profile View All Posts By User This user has MSN Messenger
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 13:54


Sorry I should be more clear. Although you have a 14.5/23 ST joint on there, the rotovap was designed for use with a threaded flask. You should have no problems using a B14 flask on there, but I think you have slightly bigger obstacles to overcome first...

And you also need the collecting flask which is threaded, hence my comment about having a custom spherical joint put onto your custom condensor (if and when you have one made).

[Edited on 7-9-2009 by DJF90]
View user's profile View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 14:08


Oh ok thanks for the clear up DJ, looks like ive got a long w8 ahead of me before this thing is operational!
View user's profile View All Posts By User This user has MSN Messenger
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 7-9-2009 at 14:26


I think you underestimate the complexity of the apparatus. I have pictures but they are far to big to post. And a bit blurry in instances. But panziandi has seen them and he can testament as to how much work this is going to need and also how much it will cost.
View user's profile View All Posts By User
Picric-A
National Hazard
****




Posts: 796
Registered: 1-5-2008
Location: England
Member Is Offline

Mood: Fuming

[*] posted on 7-9-2009 at 14:31


kk i understand. Thanks for all your help everyone, especially DJ!
View user's profile View All Posts By User This user has MSN Messenger
stateofhack
Hazard to Others
***




Posts: 123
Registered: 6-5-2008
Location: Warm Coast
Member Is Offline

Mood: annoyed

[*] posted on 8-9-2009 at 06:45


Hello,

Sorry for the late reply but i have been away, the glassware i had seen some on ebay (uk) not too long ago! I also saw some ob labx i think. Its hard to find like everyone said! What you might look into is getting it custom done, ask a few companies and stuff (Buchi usually give out size and measurements of the flask with no trouble, otherwise just say you need them because your one is a bit broken and you need the dimensions for the glassblower.

Either ways, its a bitch to find glassware for this baby! But it is really nice :D Like Andy, i will stick to my other rotovap :P
View user's profile View All Posts By User This user has MSN Messenger
chemrox
International Hazard
*****




Posts: 2961
Registered: 18-1-2007
Location: UTM
Member Is Offline

Mood: LaGrangian

[*] posted on 8-9-2009 at 16:02


If you'll thrown in a Vincent Black Shadow I'll offer and extra heating bath



"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
View user's profile View All Posts By User
entropy51
Gone, but not forgotten
*****




Posts: 1612
Registered: 30-5-2009
Member Is Offline

Mood: Fissile

[*] posted on 8-9-2009 at 16:09


The band or the motorcycle??:D



Better to remain silent and appear a fool than to open your mouth and remove all doubt.
View user's profile View All Posts By User
 Pages:  1  2

  Go To Top