P204 Bis(2-ethylhexyl) phosphate solvent extraction reagent for zinc extraction and removing impurities

1000-9999 Kilograms
>=10000 Kilograms
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1000 Kilograms
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Shanghai Yueqi Industrial Co., Ltd.

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Place of Origin: Henan China
Brand Name: Deyuan
Model Number: P204
CAS No.: 298-07-7
Purity: 50%
Application: Remove impurities for nickel cobalt extraction
Other Names: Bis(2-ethylhexyl) hydrogen phosphate
MF: C16H35O4P
EINECS No.: 206-056-4
Grade Standard: Reagent Grade
Appearance: Colorless
Appearance: odorless yellow liquid
Effective composition: 50% min
Density: 0.92 mg/L
Viscosity (25°C): 143cP
Viscosity (50°C): 41cP
Boiling point: 300°C min
Freezing point: -31°C
Flash point: 108°C
Diluent: No. 260 solvent oil
Application: The solution of high Nickel low Cobalt
Selling Units: Single item
Single package size: 5X5X15 cm
Single gross weight: 2 KG
Package Type: 1000L IBC or 200L plastic drum
Package Preview: https://sc02.alicdn.com/kf/HTB1dhOecL1G3KVjSZFkq6yK4XXa5.jpg_640x640.jpg

P204 Di-(2-ethylhexyl)phosphoric acid

  • CAS number:298-07-7


    IUPAC name: Bis(2-ethylhexyl) hydrogen phosphate


    Other names: 
    Bis(2-ethylhexyl) phosphoric acid
    Bis(2-ethylhexyl) phosphate
    Bis(2-ethylhexyl) hydrophosphoric acid
    Bis(2-ethylhexyl) hydrogen phosphate
    Di-(2-ethylhexyl) phosphoric acid

Now most Di-(2-ethylhexyl)phosphoric acid (DEHPA or HDEHP) is used to remove impurities for Laterite-Nickel ore, then use DZ272 to extract cobalt and magnesium instead of P507, then get nickel from PLS of Laterite-Nickel Ore, the efficiency will be raised more than 200 times. This is a kind of advanced extraction technology.


EHPADEHPA is used in the solvent extraction of uranium salts from solutions containing the sulfate, chloride, or perchlorate anions. This extraction is known as the “Dapex procedure.” Reminiscent of the behaviors of carboxylic acids, DEHPA generally exists as a hydrogen-bonded dimer in the non-polar organic solvents.


For practical applications, the solvent, often called a diluent, is typically kerosene. A complex is formed from two equivalents of the conjugate base of DEHPA and one uranyl ion. Complexes of the formula (UO2)2[(O2P(OR)2]4 also form, and at high concentrations of uranium, polymeric complexes may form.
The extractability of Fe3+ is similar to that of uranium, so it must be reduced to Fe2+ before the extraction.


Colorless, transparent, viscous liquid

Density (25℃)0.973 g/ml
Chemical formulaC16H35O4P
Viscosity (25℃)3.47mPa·s
Flash point


Ignition point233°C
Freezing point-60°C
Boiling point

209°C (1.33kPa)