Phosphinic acid,P,P-bis(2-ethylhexyl)-

• CAT Number: M131974
• CAS Number: 13525-99-0
• Molecular Formula: C16H35O2P
• Molecular Weight: 290.43
• Purity: ≥95%
• Storage: Desiccate at -20C
• IUPAC Name: bis(2-ethylhexyl)phosphinic acid
• InChI: InChI=1S/C16H35O2P/c1-5-9-11-15(7-3)13-19(17,18)14-16(8-4)12-10-6-2/h15-16H,5-14H2,1-4H3,(H,17,18)
• InChIKey: KZIUWSQALWALJH-UHFFFAOYSA-N
• SMILES: CCCCC(CC)CP(=O)(CC(CC)CCCC)O

Phosphinic acid, P, P-bis(2-ethylhexyl)（Cat No.:M131974）, commonly known as D2EHPA, is a widely used extractant in hydrometallurgy and liquid-liquid extraction processes. It is a clear, colorless liquid with a molecular formula of C16H35O2P. D2EHPA is known for its high selectivity for various metal ions, including copper, nickel, and cobalt. Its two 2-ethylhexyl groups provide hydrophobicity, while the phosphinic acid group confers the ability to form complexes with metal ions. D2EHPA is also used in the production of PVC stabilizers, lubricants, and as a corrosion inhibitor.