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plaster of paris

To: aquatic-plants at actwin_com
Subject: plaster of paris
From: Martyn Mitchell <kathmart at istar_ca>
Date: Tue, 30 Sep 1997 14:01:51 -0400
CC: booth at hpmtlgb1_lvld.hp.com

Hi from Canada:

I vaguely remember reading somewhere in "The Krib" that plaster of paris
can be used as a source of calcium sulphate to be used in buffer
solutions for reconstituting RO water.

If memory serves doesn't plaster of paris also contain calcium
carbonate? I have no idea of the proportions of the two.

Can anyone shed light as to wether using plaster of paris is a good or
bad idea or suggest implications, recommendations etc?

Thanks
Martyn

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