Selective Precipitation (4/6)
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SELECTIVE PRECIPITATION OF CATION GROUP I
(4 of 6 - Variations Available)
Presence of Mercury Confirmed
The white solid left by dissolving out the PbCl2, is tested by adding 15M Ammonia (NH4OH). This leaves a dark grey to black solid residue.
Copyright:© 2006 Richard Megna - Fundamental Photographs