Extraction of copper, lead, zinc or cadmium ions sorbed on ...
The amount of sorbed metal ion released from CaC03 by 16 different extractants was found to vary with the chemical nature of the solution and the metal ion involved. In general, acid solutions dissolved a high proportion of both substrate and Cu, Ph, Cd coatings; complexing agents dissolved the same coatings but left most of the calcite; and competing cations ( NH4 +, Ca2+) displaced ...