Date: Fri, 7 May 2004 10:18:23 -0700 (PDT)

Author: William Beaty

Subject: Silicone Oil and ferrofluid (fwd)


See below. This from my science museum exhibits list at

---------- Forwarded message ----------
Date: Mon, 3 May 2004 17:13:54 -0400
From: William
To: "webhead (E-mail)"
Subject: Silicone Oil and ferrofluid
Resent-Date: Mon, 3 May 2004 14:09:29 -0700

Has anyone out there suspended Ferrofluid in silicone oil? I recall seeing
a description of this once. Essentially the silicone oil prevented the
ferrofluid from "staining" the sides of the container, resulting in a
ferrofluid set-up that would be a lot more suited for an exhibition floor
(picture a sealed container with ferrofluid in a silicone oil where the two
liquids don't mix). If anyone's experimented with this, where did you get
your silicone oil and what weight did you go with?
I know, this may depend on how your ferrofluid is/was made, but since we
purchased the ferrofluid, we *really* don't know what it's weight is and
how it was made. So, if we can assume most commercial ferrofluid
manufacturers use a similar process, has anyone experimented with this?

Thank you in advance!


William Katzman "The important thing is to never stop
questioning." -A. Einstein
Director of Exhibits "Are you sure about that Al?" -His wife.
Catawba Science Center
ph: (828) 322-8169 x307
fax:(828) 322-1585
From Fri May 7 13:11:30 2004