Journal article
Hopper Growth of Salt Crystals.
- Desarnaud J Van der Waals-Zeeman Institute, Institute of Physics , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands.
- Derluyn H Laboratoire des Fluides Complexes et leurs Réservoirs-IPRA, UMR5150 , CNRS/TOTAL/Univ Pau & Pays Adour/E2S UPPA , 64000 Pau , France.
- Carmeliet J Chair of Building Physics, ETH Zurich , Stefano-Franscini-Platz 5 , 8093 Zürich Hönggerberg , Switzerland.
- Bonn D Van der Waals-Zeeman Institute, Institute of Physics , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands.
- Shahidzadeh N Van der Waals-Zeeman Institute, Institute of Physics , University of Amsterdam , Science Park 904 , 1098 XH Amsterdam , The Netherlands.
- 2018-05-17
Published in:
- The journal of physical chemistry letters. - 2018
English
The growth of hopper crystals is observed for many substances, but the mechanism of their formation remains ill understood. Here we investigate their growth by performing evaporation experiments on small volumes of salt solutions. We show that sodium chloride crystals that grow very fast from a highly supersaturated solution form a peculiar form of hopper crystal consisting of a series of connected miniature versions of the original cubic crystal. The transition between cubic and such hopper growth happens at a well-defined supersaturation where the growth rate of the cubic crystal reaches a maximum (∼6.5 ± 1.8 μm/s). Above this threshold, the growth rate varies as the third power of supersaturation, showing that a new mechanism, controlled by the maximum speed of surface integration of new molecules, induces the hopper growth of cubic crystals in cascade.
- Language
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- English
- Open access status
- hybrid
- Identifiers
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- DOI 10.1021/acs.jpclett.8b01082
- PMID 29767976
- Persistent URL
- https://sonar.ch/global/documents/274106
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