What question did this study set out to answer?

To investigate the phase evolution, precipitation kinetics, and conditions controlling the formation of copper(II) hydrous oxides and basic salts during urea hydrolysis.

January 1, 1992Journal of Materials Chemistry

Precipitation of copper(II) hydrous oxides and copper(II) basic salts

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To investigate the phase evolution, precipitation kinetics, and conditions controlling the formation of copper(II) hydrous oxides and basic salts during urea hydrolysis.
Induced homogeneous alkalinization of copper(II) solutions using forced hydrolysis of urea under varying initial copper concentrations, temperatures, and aging times.
Evaluated solid phase precipitation and transformations in the absence and presence of added sulfate anions.
Onset of precipitation was delayed by higher initial copper concentrations, initially yielding amorphous copper hydroxide with variable carbonate content or basic copper nitrate at elevated concentrations.
Subsequent aging transformed amorphous intermediates into crystalline tenorite or malachite depending on initial copper concentration, whereas sulfate addition accelerated precipitation and yielded brochantite.
Thermodynamic and kinetic control of the hydrolysis conditions enabled the synthesis of uniform, spherical monodisperse copper(II) hydrous oxide particles.

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Implication

Experimental study demonstrates phase evolution of copper(II) hydrous oxides via urea hydrolysis, highlighting pathways to synthesize uniform spherical particles.

Cite This Study

Candal et al. (1992) studied this question.

synapsesocial.com/papers/6a98bdfbea8974fe8c272330 https://doi.org/10.1039/jm9920200657

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Implication

Experimental study demonstrates phase evolution of copper(II) hydrous oxides via urea hydrolysis, highlighting pathways to synthesize uniform spherical particles.

Precipitation of copper(II) hydrous oxides and copper(II) basic salts

Key Points

Discussion

Implication

Cite This Study

Precipitation of copper(II) hydrous oxides and copper(II) basic salts

Key Points

Discussion

Implication

Cite This Study

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