Name: Solvay CYANEX 923
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Solvay CYANEX 923

Trialkylphosphine oxide (TRPO) mixture with high selectivity for trivalent and tetravalent metal ions.
Excellent solubility in common aliphatic and aromatic diluents, enabling flexible formulation in solvent extraction systems.
Good chemical and radiolytic stability under acidic leach conditions, supporting robust industrial operation.
Low aqueous solubility and minimal third-phase formation, contributing to efficient phase separation and reduced reagent loss.
Proven performance in mixed-oxide solvent extraction circuits for rare earths and actinide separations.

Typical Applications Of Solvay CYANEX 923

Separation and purification of rare earth elements (REEs) from chloride or nitrate leach solutions.
Recovery of uranium and thorium from acid leach liquors in nuclear fuel cycle applications.
Extraction of zirconium and hafnium from sulfate media in specialty metal refining.
Purification of scandium from bauxite residue (red mud) and titanium processing streams.
Co-extraction of tetravalent metals (e.g., Th⁴⁺, Zr⁴⁺) in conjunction with acidic extractants like D2EHPA.

Chemical Type	Trialkylphosphine oxide (TRPO) mixture
Product Form	Liquid
Appearance	Pale yellow to amber clear liquid
Primary Applications	Solvent extraction of REEs, U, Th, Zr, Hf, Sc
Key Features	High metal selectivity, low aqueous solubility, good diluent compatibility
Storage Stability	Stable under inert atmosphere at ambient temperature; avoid prolonged exposure to moisture and strong oxidizers
Typical Density (20 °C)	0.89–0.91 g/cm³
Viscosity (25 °C)	25–35 cP

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