barbalb@itsa.ucsf.edu wrote:
> Got a question from a pathologist (academic).  He asked about the pH of
> hematoxylin.  

Assuming that you mean an aluminium-haematoxylin
solution used for staining nuclei (= a haemalum),
the answer is that it depends on the mixture
but can range from 1 to 2.5. The commonly used
solutions have pH 1.5 to a little below pH 2.

-- 
-------------------------
John A. Kiernan
Department of Anatomy and Cell Biology
The University of Western Ontario
London,   Canada   N6A 5C1
   kiernan@uwo.ca
   http://publish.uwo.ca/~jkiernan/