Explore Top-Quality Trihexylphosphine Oxide with Aure Chemical
Trihexylphosphine Oxide (THPO) (CAS 3084-48-8) is the stable, oxidized form of trihexylphosphine. It is typically a white to off-white, waxy solid or low-melting liquid with a minimal odor. Unlike its highly reactive phosphine precursor, THPO is a chemically and thermally robust compound. Its structure, featuring a highly polar P=O bond and three long lipophilic hexyl chains, gives it exceptional characteristics: it is a powerful extractant for metal ions (especially rare-earth metals) from aqueous solutions into organic phases, and it serves as an effective capping ligand/stabilizer in high-temperature nanomaterials synthesis due to its low volatility.
Basic Information of THPO
Meticulously produced and rigorously tested to meet stringent quality standards. We ensure exceptional purity and consistent performance, essential for your critical applications:
| CAS No.: | 3084-48-8 |
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| EC No.: | 221-392-1 |
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| Linear Formula: | C18H39OP |
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| Molecular Weight: | 302.48 |
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| Appearance: | White to off-white waxy solid or low-melting liquid |
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| Odor: | Low odor (minimal or non-existent phosphine/garlic notes) |
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| Melting Point: | 34-35 °C |
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| Boiling Point: | 163°C |
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| Density: | 0.864±0.06 g/cm3(Predicted) |
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| Solubility: | Slightly soluble in water; highly soluble in organic solvents, oils, and non-polar media. |
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| Chemical Structure: |  |
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Application Overview
THPO is particularly valuable in applications that rely on its highly polar P=O group combined with its excellent solubility in non-polar organic systems:
Solvent Extraction (Rare Earths): A critical reagent in the hydrometallurgy industry for the highly selective liquid-liquid extraction and separation of metal ions, including rare-earth elements (REEs), from mining leachates and recycled materials.
Nanomaterials Synthesis: Used as a stabilizing and surface-capping ligand in the high-temperature synthesis of semiconductor nanocrystals and quantum dots. Its low volatility and coordinating ability ensure controlled growth and stabilization of the particle surface.
Specialty Polymer Additive: Employed as a non-volatile plasticizer, flame retardant, or processing aid in various non-polar polymer formulations, where its high molecular weight and thermal stability are advantageous.
Organic Synthesis: Used as a strong Lewis base additive in specific organic reactions, often to sequester or coordinate to metal ions or acidic protons, thereby accelerating or modifying reaction pathways.
Why Choose Aure Chemical for Trihexylphosphine Oxide?
Aure Chemical offers THPO (CAS 3084-48-8) with specialized quality assurance focused on maximizing its extraction efficiency and thermal suitability for high-end industrial uses.
High Extractant Purity: We guarantee an exceptionally low level of residual tertiary phosphine (THP). This is crucial as unoxidized phosphine can interfere with the extraction mechanism and lead to side reactions in nanomaterials synthesis, ensuring optimal performance as a coordinating extractant.
Purity for Hydrometallurgy: Our THPO is certified for ultra-low metal contamination, a non-negotiable requirement for high-purity rare-earth separation processes where trace metals must be carefully managed to ensure the final purity of the extracted elements.
Precise Melting Point Control: Given its phase variability, we offer THPO with a tightly controlled melting point range (± 1 °C). This consistency simplifies handling and ensures predictable performance, whether the customer intends to use it as a solid or melt it for liquid-liquid extraction.
Thermal Stability Verification: Every batch is tested and verified for its thermal decomposition profile, guaranteeing that the material maintains its structural integrity and functional efficacy when used in high-temperature operations, such as nanocrystal growth above 250°C.
Hazards Classification
GHS Classification: Skin Corrosion (GHS05), Environmental Hazard (GHS09)
Hazard Statements: Causes severe skin burns and eye damage; Toxic to aquatic life with long lasting effects.
UN Number: N/A
Hazard Class: N/A
Packing Group: N/A
GHS05: Corrosive
GHS09: Environmental hazard
