Formation and growth of lithium phosphate chemical gardens

We show that a chemical garden can be developed from an alkaline metal precipitate using a flow-driven setup. By injecting sodium phosphate solution into lithium chloride solution from below, a liquid jet appears, on which a precipitate grows forming a structure resembling a hydrothermal vent. The p...

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Bibliographic Details
Main Authors: Emmanuel Michael
Lantos Emese
Horváth Dezső
Tóth Ágota
Format: Article
Published: 2022
Series:SOFT MATTER 18 No. 8
Subjects:
doi:10.1039/d1sm01808f

mtmt:32838795
Online Access:http://publicatio.bibl.u-szeged.hu/24427
Description
Summary:We show that a chemical garden can be developed from an alkaline metal precipitate using a flow-driven setup. By injecting sodium phosphate solution into lithium chloride solution from below, a liquid jet appears, on which a precipitate grows forming a structure resembling a hydrothermal vent. The precipitate column continuously builds upward until a maximum height is reached. The vertical growth then significantly slows down while the tube diameter still increases. The analysis of the growth profiles has revealed a linear dependence of volume growth rate on the injection rate, hence yielding a universal growth profile. The expansion in diameter, localized at the tip of the structure, scales with a power law suggesting that the phenomenon is controlled by both diffusion and convection.
Physical Description:1731-1736
ISSN:1744-683X