I recently asked this on the histonet, and would like to get some more info 
on it.
Could soaking faced paraffin blocks in ammonia water too long negatively 
affect the H+E stain?  I
 
Could ammonia change the acid/base charges or pH of different tissue 
components that could negatively effect the charges necessary for heme staining, or 
eosin?
 
Thanks for letting me "rerun" this question
 
 



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