Bis(2,4,4-trimethylpentyl)phosphinic acid

Bis(2,4,4-trimethylpentyl)phosphinic acid is an organophosphorus compound with significant applications in research and industry, particularly as an extractant and a ligand.
Here is a comprehensive overview of its key specifications:

CAS: 83411-71-6

EC No.: 280-445-7

Formula: C16H35O2P

Mol. wt.: 290.42

Concentration: ≥94%

UN number: 3082

Transport Hazard class: 9

Packing group: III

General Information:
CAS Number: 83411-71-6.
Molecular Formula: C₁₆H₃₅O₂P
Molecular Weight: 290.42 g/mol
Synonyms: Diisooctylphosphinic acid, Cyanex 272, Ionquest 290.

Physical and Chemical Properties:
The following table summarizes the key physical and chemical properties of Bis(2,4,4-trimethylpentyl)phosphinic acid.

Applications of Bis(2,4,4-trimethylpentyl)phosphinic acid:
Bis(2,4,4-trimethylpentyl)phosphinic acid is a versatile reagent in various specialized fields:
Solvent Extraction: It is widely used as an acidic extractant for the separation and recovery of metal ions, such as Indium(III) and other divalent metals (e.g., Zn²⁺, Cu²⁺, Pb²⁺).
Nanomaterial Synthesis: It serves as a surface-passivating ligand in the synthesis of “magic-size” nanocrystals, such as CdSe and CdTe.
Supercritical Fluid Extraction (SFE): The compound acts as an acidic ligand to facilitate the extraction of metals from matrices like sand and fly ash using supercritical CO₂.

Global Supply Infrastructure & Regulatory Compliance

We supply high-purity Bis(2,4,4-trimethylpentyl)phosphinic acid globally, packaged in heavy-duty 190 kg tight-head plastic drums or 950 kg intermediate bulk container (IBC) totes. Contact us today to request bulk spot pricing quotes per metric ton, technical datasheets (TDS), or custom blending formulations with complementary aliphatic diluents.

By the way, our metal extractants as below, if you need, please feel free to ask us:

1. P204 (D2EHPA or HDEHP) This is used for first step to remove impurity for laterite nickel ore.
2. P507 non-ferrous metal extractant for copper, zinc, cobalt-nickel, cadmium, gold-silver, platinum group metals, rare earths and so on.
3. DY272 Nickel cobalt separation extractant, it can take cobalt out from nickel cobalt solution, then leave pure nickel.
4. DY984N copper solvent extraction reagent.
5. QL256-2 Nickel Cobalt Manganese co extraction Extractant.
6. DY316 Lithium extractant.
7. DY319 high efficiency nickel cobalt co-extraction extractant for battery recycling, can take out nickel and cobalt together from Lithium battery electrolyte.
8. DY366 Scandium extractant.
9. DY377 efficient nickel and diamond separation extractant.