Growth of gypsum. I. Kinetics

G. J. Witkamp; J. P. Van der Eerden; G. M. Van Rosmalen

doi:10.1016/0022-0248(90)90912-5

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 journal › Article › peer-review

57 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	281-289
Number of pages	9
Journal	Journal of Crystal Growth
Volume	102
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0248(90)90912-5
State	Published - Apr 2 1990
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-0248(90)90912-5

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abstract = "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.",

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Y1 - 1990/4/2

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AB - 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.

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ER -

Growth of gypsum. I. Kinetics

Abstract

ASJC Scopus subject areas

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