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Urea-Mediated Biomineralization and Adsorption of Heavy-Metal Ions in Solution by the Urease-Producing Bacteria C7-12

Qian Yang1, Xiaoyi Li1, Junyi Cao1

  • 1College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China.

Microorganisms
|January 28, 2026
PubMed

Keywords:
adsorptionbiomineralizationheavy metalsurease-producing bacteria

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Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
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A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial concentration of acid. For example, 0.20 M hydrobromic acid will dissociate completely in water and produces 0.20 M of hydronium ions and 0.20 M of bromide ions.
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