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FILTRATION COMPARISON SET UP<br />
(Variations Available)<br />
Testing Substances to Remove Hard Water Ion<br />
Four funnels suspended over test tubes containing: Filter Paper alone as control, Sand, Calgon & Ion-exchange Resin. The filtrates are tested with sodium carbonate (Na2CO3) & liquid soap to determine which substance is most effective.

Fphoto-48590002A-2RM.jpg

FILTRATION COMPARISON SET UP
(Variations Available)
Testing Substances to Remove Hard Water Ion
Four funnels suspended over test tubes containing: Filter Paper alone as control, Sand, Calgon & Ion-exchange Resin. The filtrates are tested with sodium carbonate (Na2CO3) & liquid soap to determine which substance is most effective.

Copyright:© 2000 Richard Megna - Fundamental Photographs

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Richard Megna