Hi all,
Got a question from a pathologist (academic).  He asked about the pH of
hematoxylin.  I assume it's acidic because of the acids we've all added
to our home made heme batches, but I've never pH'd a batch of hematoxylin 
and find no reference to the pH in the few texts I've already consulted.

What do you all have to say?

Barbara Albert
UCSF Medical Center
San Francisco