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

Printable Version  
Author: Subject: Vacuum on sale
EssOilChem
Harmless
*




Posts: 25
Registered: 3-4-2012
Location: Outside your window
Member Is Offline

Mood: No Mood

[*] posted on 17-4-2012 at 08:58
Vacuum on sale




Nice, cheap, and on sale here on Amazon ($169.09, free two day shipping with prime). I think (not positive) its the same one that United Nuclear sells for almost $300.

Any downsides to using this for distillation? Its specifically marketed for refrigeration system evacuation. I noticed it mentioned in this thread and a few others, however it was never elaborated upon in significant depth for disadvantages. Not really sure what i'll use it for just yet, but probably just basic vacuum functions to be honest.

Anyone have personal experience with this pump?
View user's profile View All Posts By User
johansen
Harmless
*




Posts: 27
Registered: 25-6-2011
Location: United States
Member Is Offline

Mood: No Mood

[*] posted on 17-4-2012 at 11:55


yes, you can get them from harbor freight for 94 last week.
normal price is 149 i think, but harbor freight routinely has them on sale.

mine (the 3 CFM version) pulled 100-150 microns out of the box.
View user's profile View All Posts By User
mr.crow
International Hazard
*****




Posts: 884
Registered: 9-9-2009
Location: Canada
Member Is Offline

Mood: 0xFF

[*] posted on 17-4-2012 at 12:01


Looks like Chinese junk that will break after a few hours of use.

You also need a dry ice/acetone or LN2 trap to catch any vapors or fumes

The best is a Nalgene water aspirator or a PTFE diaphragm pump




Double, double toil and trouble; Fire burn, and caldron bubble
View user's profile View All Posts By User

  Go To Top