You may want to check the percentage of alcohol in your alcoholic
formalins, if it is above 70% then the formalin buffer salts are
precipitating out in the alcohol.  
Debbie J. Siena, HT(ASCP)QIHC 
Histopathology Manager 
Baylor University Medical Center 
3500 Gaston Ave. 
Dallas, TX 75246 
214-820-2465 vm 
214-820-4110 fax 
debbiesi@bhcs.com 

-----Original Message-----
From: Jeannie Heck [mailto:jeannie_heck@yahoo.com]
Sent: Thursday, February 21, 2002 10:08 PM
To: Histonet
Subject: crystallzed precipitant



We have recently noticed a problem with a precipitant forming in our
alcoholic formalin. We make this solution up fresh weekly. It is used in
our tissue processor following 10% formalin we use two changes. We have
used this technique for many years but have just recently noticed the
crystallized precipitant. Any advice to keep the precipitant from
forming will be appreciated.

 

Jeannie Heck HT 

Hutchinson Hospital




  _____  

Do You Yahoo!?
Yahoo!   Sports - Coverage of the 2002
Olympic Games