Trioctylphosphine oxide
Trioctylphosphine oxide (CAS: 78-50-2), commonly known as TOPO, is a high-purity organophosphorus compound featuring a polar phosphoryl group balanced by three hydrophobic octyl chains. This structure gives it outstanding affinity for metal ions combined with excellent solubility in organic solvents, making it one of the most versatile extractants and metal-complexing agents available. TOPO forms stable coordination complexes with a wide range of transition, rare-earth, and actinide metals, enabling selective separation and recovery from aqueous solutions. In analytical chemistry it is used to concentrate and preconcentrate trace metals prior to spectroscopic measurement. The compound also serves as a ligand in advanced materials synthesis, including the preparation of quantum dots and semiconductor nanocrystals, where it controls crystal growth and stabilizes particle surfaces. With high chemical stability, low volatility, and broad compatibility with hydrocarbon diluents, TOPO remains a benchmark reagent for hydrometallurgy, research, and specialty chemical manufacturing.
– Hydrometallurgical Extraction: Used to selectively extract and separate cobalt, nickel, uranium, rare-earth elements, and other strategic metals from leach solutions and ores.
– Analytical and Environmental Testing: Employed as a complexing reagent to preconcentrate trace heavy metals from water and industrial effluents prior to instrumental analysis.
– Nanomaterials Synthesis: Serves as a capping ligand and coordinating solvent in the preparation of quantum dots, nanocrystals, and metal nanoparticles with controlled size and stability.
– Specialty Solvent and Additive: Applied in organic synthesis and separation processes as a phase-transfer-promoting agent and metal-ion scavenger in hydrocarbon-based systems.
Product Name: Trioctylphosphine oxide
For global customers, we provide complete technical documentation to support product evaluation, regulatory compliance and safe handling during transportation and application.