You can try substituting for another liquid, depending on your application.
I know a lab that has switched from silicon oil to tetraethylene glycol. It costs a fraction of silicon oil. It has a flash point of 182 C and boiling point of 314 C. Since most of their reactions are below 150 C, it works well for them. It is water soluble so it is easy to handle the small amount of residue on the surface of a flask.
From: ACS Division of
Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of
Sent: Friday, August 17, 2018 6:25 PM
Subject: [DCHAS-L] oil bath safety
Does this group have any tips for safe glassware handling when using oil baths?
I understand how to handle the heat part, but particularly tips/tricks for oily / slippery round bottom flasks and how to wipe them (relatively clean) so they don't get oil everywhere all the time.....
The specific application is for 2 and 3 liter sized roundbottom flasks being used on a rotary evaporator - lots of attaching/detaching is necessary periodically.
Thanks! This group is a wealth of knowledge and although I've been out of the teaching lab for awhile, I still oversee a lab that I want to be safe and don't have other scientists around with which to confer.
Amber Wise, PhD
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