Tube formation in reverse silica gardens
Tube formation in reverse silica gardens
The flow injection of sodium silicate solution into a large reservoir of lighter cupric sulfate solution creates single, downward growing precipitation tubes. These hollow structures have diameters in the range of 0.8−2.4 mm and can grow several centimeters in length. Four distinct growth regimes are observed, and their stability in terms of flow rate and cupric sulfate concentration is investigated. Three of these growth regimes resemble behavior reported earlier for the injection of cupric sulfate into silicate solution. However the “reverse” conditions studied here reveal one distinctly different regime in which tube growth is limited by repetitive fracturing. The lengths of the broken-off tube segments and the times between subsequent break-off events can be described by log−normal distributions.
9324–9329
Pagano, Jason J.
fd73a410-602f-4d0f-8617-d918798a525a
Bánsági, Tamás
3984187d-60fd-47f2-b6cb-f312dcedadae
Steinbock, Oliver
63fff225-acf0-4b4e-9eca-506d9ef27ef9
1 July 2007
Pagano, Jason J.
fd73a410-602f-4d0f-8617-d918798a525a
Bánsági, Tamás
3984187d-60fd-47f2-b6cb-f312dcedadae
Steinbock, Oliver
63fff225-acf0-4b4e-9eca-506d9ef27ef9
Pagano, Jason J., Bánsági, Tamás and Steinbock, Oliver
(2007)
Tube formation in reverse silica gardens.
The Journal of Physical Chemistry C, 111 (26), .
(doi:10.1021/jp071534q).
Abstract
The flow injection of sodium silicate solution into a large reservoir of lighter cupric sulfate solution creates single, downward growing precipitation tubes. These hollow structures have diameters in the range of 0.8−2.4 mm and can grow several centimeters in length. Four distinct growth regimes are observed, and their stability in terms of flow rate and cupric sulfate concentration is investigated. Three of these growth regimes resemble behavior reported earlier for the injection of cupric sulfate into silicate solution. However the “reverse” conditions studied here reveal one distinctly different regime in which tube growth is limited by repetitive fracturing. The lengths of the broken-off tube segments and the times between subsequent break-off events can be described by log−normal distributions.
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Published date: 1 July 2007
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Local EPrints ID: 505717
URI: http://eprints.soton.ac.uk/id/eprint/505717
ISSN: 1932-7447
PURE UUID: b92c046d-5094-4ea1-89c9-2fdae40fec8d
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Date deposited: 16 Oct 2025 17:26
Last modified: 17 Oct 2025 02:17
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Author:
Jason J. Pagano
Author:
Tamás Bánsági
Author:
Oliver Steinbock
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