Re: [Histonet] formalin nomenclature

The primary difference is that commercial 37-40% formaldehyde solutions 
contain some methanol; whereas, the paraformaldehyde solutions do not.  This has 
been considered an important difference especially for electron microscopy, and 
possibly some other applications.  Formalin solutions prepared from 
paraformaldehyde are purer solutions, but unless you need the purity, they are much more 
difficult to prepare.

Freida Carson
Histonet mailing list

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