That is the aluminum salt precipitating out.
Paula Keene Pierce, BS, HTL(ASCP)HTPresidentExcalibur Pathology, Inc.5830 N
Blue Lake DriveNorman, OK 73069PH 405-759-3953http://www.excaliburpathology.com
A sharp knife is nothing without a sharp eye. - Klingon Proverb
On Thursday, July 9, 2020, 11:47:53 AM CDT, Terri Braud via Histonet
<histonet@lists.utsouthwestern.edu> wrote:
Hello Histo Peeps - What are the clear crystals that form in Hematoxylin? We
use Richard-Allen 7211. We love the stain, but occasionally, when a bottle has
been previously opened, we find clear crystalline precipitate forming in the
bottom. Today, we had a huge one (over an 2" in greatest diameter) that was
quite beautiful. It had a few occlusions of purple streaks, but otherwise was
clear. Doesn't seem to affect the stain, so I was just curious.
Inquisitively yours, Terri
Terri L. Braud, HT(ASCP)
Anatomic Pathology Supervisor
Laboratory
Holy Redeemer Hospital
1648 Huntingdon Pike
Meadowbrook, PA 19046
ph: 215-938-3689
fax: 215-938-3874
Care, Comfort, and Heal
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