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Subject:
Re: Non-staining Ferrofluid Suspension Recipes?
From:
William Katzman <[log in to unmask]>
Reply To:
Informal Science Education Network <[log in to unmask]>
Date:
Thu, 3 Nov 2011 17:22:31 -0500
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

There is one that's not too bad - you suspend it in a 50% isopropyl, 50% water formula.  Outside of that formula it will stain, but inside it, it won't stain borosilicate glass (unless it has prolonged contact under magnetic pressure).  I think it's from  Ferrosound Ferrofluidics (603) 883-9800.  I believe those are the ones in the kits.

-William

PS. I researched this a long time ago, so it is possible I grabbed the wrong ferrofluid bottle when responding to your question.



On Nov 3, 2011, at 4:07 PM, Luke Donev wrote:

> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
> 
> Hello Brian,
> 
> I've seen the Ferrofluid containers from the Nanoscale Informal Science Education Network kits get kicked around for years without staining the tubes.
> 
> The kit is described: http://www.nisenet.org/catalog/programs/exploring_materials_-_ferrofluid_nanodays_08_09_10_11
> And their vendor source is listed as Teacher Source: http://www.teachersource.com/ElectricityAndMagnetism/Ferrofluid/FerrofluidPreformDisplayCell.aspx
> They say it's not the same stuff as the bulk kit.
> 
> 
> Luke Donev, Ph.D.
> Staff Scientist
> CT Science Center
> 250 Columbus Blvd.
> Hartford, CT 06103
> 860-520-2122
> 
> 
> 
> -----Original Message-----
> From: Informal Science Education Network [mailto:[log in to unmask]] On Behalf Of Brian Turkett
> Sent: Thursday, November 03, 2011 3:35 PM
> To: [log in to unmask]
> Subject: Non-staining Ferrofluid Suspension Recipes?
> 
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
> 
> Does anyone have a recipe for liquids to suspend/place Ferro fluid in
> where it will not stain the plastic/glass/etc. you are using? Or, has
> anyone tried something and have it not work?
> 
> 
> 
> Brian Turkett
> 
> Spacelink Manager
> 
> Maryland Science Center
> 
> 601 Light St
> 
> Baltimore MD 21230
> 
> Phone: 410-545-5995
> 
> Fax: 410-545-5974
> 
> [log in to unmask]
> 
> 
> 
> 
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> For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
> 
> Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
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> ***********************************************************************
> For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
> 
> Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
> 
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William Katzman
Program Leader
LIGO Science Education Center
"Inspiring Science"
[log in to unmask]
(225) 686-3134

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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.

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