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Table 1 Experimental data summary. Solution composition, pH, saturation indexes and predicted solid solution composition for the experiments performed with Ca2+(aq)-Cd2+(aq)-HCO-3(aq) solutions.

From: Friction characteristics of Cd-rich carbonate films on calcite surfaces: implications for compositional differentiation at the nanometer scale

Experiment Cd2+(mmol/L) Ca2+(mmol/L) NaHCO3 (mmol/L) pH SIot SIcal SImaxa XCdb
Cd.1 0.1 - 0.1 8.4 3.17 - - -
Cd.2 0.1 - 0.1 8.5 3.35 - - -
Cd.3 0.1 - 0.1 7.96 2.34 - - -
Cd.4 0.1 - 0.1 8.1 2.6 - - -
Cd.5 0.1 - 0.1 8.23 2.81 - - -
Cd.6 0.1 - 0.1 8.2 2.75 - - -
Cd.7 0.1 - 0.1 8.22 2.83 - - -
Cd.8 0.1 - 0.1 8.28 2.91 - - -
Cd.9 0.1 - 0.1 8.24 2.83 - - -
Cd.10 0.1 - 0.1 8.27 2.89 - - -
Cd.11 0.1 - 0.1 8.08 2.56 - - -
Cd.12 0.1 - 0.1 8.2 2.75 - - -
Cd.13 0.001 0.34 0.9 8.75 1.54 1.63 1.89 0.92
Cd.14 0.001 0.34 0.9 8.51 1.29 0.25 1.32 0.92
Cd.15 0.001 0.34 0.9 9 2.12 1.1 2.16 0.91
Cd.16 0.001 0.34 0.9 8.54 1.36 0.31 1.4 0.92
  1. a. Maximum reached by supersaturation function.
  2. b. Solid solution composition corresponding to the maximum of the supersaturation function.