Growth of gypsum. I. Kinetics

G. J. Witkamp*, J. P. Van der Eerden, G. M. Van Rosmalen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


A suspension of gypsum (CaSO4{down triangle, open}2H2O) crystals has been grown from electrolyte solutions using the constant composition technique. In pure water a parabolic rate law governs the growth kinetics, while in NaNO3 solutions the order increases from 1 at low supersaturations up to 4 at higher supersaturations. In NaNO3 platelike crystals with some roughened faces develop under the given growth conditions. The higher growth rate in electrolyte solutions is partly due to the higher impingement rate and partly to a higher incorporation rate at the surface. The growth rate increases with increasing temperature.

Original languageEnglish (US)
Pages (from-to)281-289
Number of pages9
JournalJournal of Crystal Growth
Issue number1-2
StatePublished - Apr 2 1990
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


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