[Histonet] formaline 40% with crystals at the bottom

Jay Lundgren jaylundgren at gmail.com
Wed May 27 14:23:01 CDT 2015


Cover it loosely, and warm it up a little with a stir bar, under a hood.
You should be able to tell the difference between alcoholic and aqueous
formalin by smell.  Why isn't it labelled?

                                                            Sincerely,
                                                                   Jay A.
Lundgren, M.S., HTL (ASCP)

On Wed, May 27, 2015 at 12:25 PM, Davis, Cassie <CDavis at che-east.org> wrote:

> RE:
> we have a bottle of formaline 40% with crystals at the bottom. Can we used
> it? is there any way to re-suspend the crystals? Better dispose of it? and,
> BTW, do you know why it crystallized? by its side there is another bottle,
> same batch, with no crystals.
> >
> > thanks a lot your comments
> >
> > Regards
> >
> > Julio
> >
> Julio,
>
> I am a little confused, could this actually be alcoholic formalin? I've
> seen crystals form in alcoholic formalin when it is made with absolute
> rather that 50%. Normally we see white powder form when formalin dries.
>
> Cassandra Davis
> Histology Technician
> Anatomical Pathology Laboratory
> Saint Francis Healthcare
> 701 N. Clayton Street
> Wilmington,DE 19805
> Office:  302-575-8095
> Email:  CDavis at che-east.org<mailto:n at che-east.org>
> www.saintfrancishealthcare.org
>
>
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