Re: Cobalt Chloride
I may be wrong but I thought that cobalt chloride was the indicator ingredient
in drying agents such as "Drierite" and silica gel, and that its change in
color from blue to pink indicated the presence of water.
I cannot see that it would be much use as a coloring agent for tissues.
Deb can you get some details from the individuals who suggested this and please
let us know?
Thanks
Barry
Mark.Lewis@thermoshandon.com wrote:
> Deb,
>
> Be sure to call the manufacturer of the tissue processor and ask if adding
> cobalt chloride to the alcohol is permitted. Some chemicals may not be
> acceptable for use on one processor while the same chemicals may be
> acceptable to use on a different processor.
>
> Mark
>
> MARK A. LEWIS
>
> Product Specialist
>
> Thermo Shandon
>
> 171 Industry Drive, Pittsburgh, PA 15275
>
> Direct: (412) 747-4013
>
> Fax: (412) 788-1097
>
> e-mail: mark.lewis@thermoshandon.com
>
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>
> "Van Eyck,
> Deb" To:
> phci.org>
> cc:
> 01/02/02 Subject:
> 04:46 PM
>
>
>
> Hi all-
> Does any one have the formula/recipe for a cobalt chloride solution to
> color the final alcohol in the processor for small specimens or cell
> blocks??? I've been told that this solution works better than adding eosin.
> Please give me the product number for cobalt chloride ordered and MSDS of
> final solution made in absolute alcohol. Also does anyone have any
> experience using this on cell blocks made with histogel???? This product
> makes an excellent cell block prep, but is very transparent and hard to see
> when embedding and cutting. Any input would be appreciated. Thanks!
>
> Deb Van Eyck, Pathology Team Leader
> Waukesha Memorial Hospital
> Waukesha, WI 53188
> 262 928-2112
> deb.vaneyck@phci.org
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