D2EHPA extractant

D2EHPA extractant

P204 (D2EHPA or HDEHP), this reagent has good ability for removing impurities in the process of extract nickel and cobalt, also be used to extract other metals.

P204 Di-(2-ethylhexyl) phosphoric acid (D2EHPA or HDEHP)

CAS: 298-07-7 or 27215-10-7 (both all be right)

IUPAC name: Bis(2-ethylhexyl) hydrogen phosphate.

D2EHPA (di(2-ethylhexyl) phosphoric acid) is an organophosphorus extractant that is commonly used in hydrometallurgical processes to extract metals such as copper, nickel, cobalt, and rare earth elements from aqueous solutions.

It is a highly selective extractant that forms complexes with metal ions and transfers them from the aqueous phase to the organic phase. The organic phase containing the metal-D2EHPA complex can then be separated from the aqueous phase, allowing the metal to be extracted and purified.

D2EHPA has several advantages as an extractant, including high selectivity, low toxicity, and the ability to operate at ambient temperature and pressure. However, it can also form stable emulsions with the aqueous phase, which can make separation of the organic and aqueous phases difficult.



Appearance Colorless, transparent, viscous liquid
Density (25℃) 0.973 g/ml
Chemical formula C16H35O4P
Viscosity (25℃) 3.47mPa·s
Flash point 206°C
Ignition point 233°C
Freezing point -60°C
Boiling point 209°C (1.33kPa)

We special to focus on R&D metal extraction reagents, our major products as below:

  1. DZ988N/DZ973N/DZ902 copper solvent extraction reagent.
  2. DZ272 Nickel, cobalt, manganese, and magnesium separation extractant.
  3. DY319 high efficiency nickel cobalt co extraction extractant.
  4. DY377 efficient nickel and diamond separation extractant.
  5. DY366 new advanced nickel cobalt extractant.
  6. P204 (D2EHPA or HDEHP) extractant.
  7. DY301, DY302 for nuclear spent fuel recovery.
  8. Other extraction reagents for Vanadium extractant, Lithium extractant, Ferro extractant and rare earth extractant.