Experimentally, we usually observe changes in the crystal shape – a clear sign that the additive is binding to the crystal surface and changing the relative rates of growth of different crystal faces (figures 10.20 and 10.21).
"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.
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For example, additives such as the ethylenediaminetetraphosphonate anion can substitute for sulfate anions at the surface of a barium sulfate crystal; the system can be modelled in the computer (figure 10.19) to determine the most favourable binding sites.
"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.
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