Organic Acids
REACH
Di-2-ethylhexyl hydrogen phosphate
CAS Number
298-07-7
EC Number
206-056-4
Abbreviation
D2EHPA
What is Di-2-ethylhexyl hydrogen phosphate?
Di-2-ethylhexyl hydrogen phosphate, commercially known as D2EHPA, is an organophosphoric acid extractant. CAS 298-07-7.
Where is Di-2-ethylhexyl hydrogen phosphate used?
- Mining and hydrometallurgy: selective extractant for cobalt, nickel, zinc and rare earth elements from leach solutions via solvent extraction circuits
- Petroleum refining: removal of trace metal contaminants from process streams
- Lubricant and metalworking fluids: corrosion inhibitor and anti-wear additive for non-ferrous metals
- Liquid-liquid extraction: carrier solvent for uranium and vanadium recovery
- It functions as a chelating agent, enabling recovery and purification of target metals from aqueous streams.
Good to know: Buyers sourcing for hydrometallurgical circuits typically require low water content and controlled acid value specifications.
Commercial specifications
- Purity 95% to 99%
- Drum and IBC quantities
Other Names (Synonyms)
Bis(2-ethylhexyl) hydrogen phosphate|Bis(2-ethylhexyl) phosphate|Di(2-ethylhexyl) phosphate|D2EHPA
What are the physical properties of Di-2-ethylhexyl hydrogen phosphate?
Melting Point -50 °C
Boiling Point 48 °C (12 mmHg)
Density 0.973 g/cm³ @ Temp: 25 °C
Flash Point >230 °F
Appearance clear colorless to light yellow liquid
Color Colorless
Form Liquid
Water Solubility slightly soluble
Vapor Pressure <0.1 hPa (20 °C)
Refractive Index n 20/D 1.443(lit.)
pH 3 (< 1g/l, H2O)
Log P 2.88 at 25℃
How is Di-2-ethylhexyl hydrogen phosphate classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Which trade and regulatory codes apply to Di-2-ethylhexyl hydrogen phosphate?
HS Code 29190090
UN Number 1902
ADR Class 8
Packing Group III
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 1