From: Sandy King (sanking@hubcap.clemson.edu)
Date: 05/27/00-09:25:07 AM Z
Sil Horwitz wrote:
>Because it is so much more expensive, there are only two major
>reasons for using pot carbonate over the sodium salt: (1) solubility
>is greater, so superconcentrated solutions are possible, and (2)
>when a formula contains all other salts in the potassium form,
>sodium compounds may change the overall ionic reaction.
>
>
Actually there appears to be very little difference in price between
potassium carbonate and sodium carbonate, if you buy from places like
Formulary, Artcraft and Bryant Laboratory. I just compared prices of
the two carbonates in recent catalogs from these suppliers and they
are virtually the same for the two forms of the carbonate.
Sandy King
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