Acids & Salts Available to Source

Di(2-ethylhexyl) phosphoric acid (D2EHPA)

CAS 298-07-7 · MF C16H35O4P · MW 322.42 g/mol · UN 1902 (DI-(2-ETHYLHEXYL)PHOSPHORIC ACID)

Classic SX extractant (Zn, REE, etc.)

SDS / TDS Download
CAS Number
298-07-7
Molecular Formula
C16H35O4P
Molecular Weight
322.42 g/mol
Material Family
Acids & Salts
Functional Roles
Physical Properties
melting_point
less than -76 u00b0F (USCG, 1999)
boiling_point
155 u00b0C at 0.015 mm Hg
density
0.977 at 68 u00b0F (USCG, 1999) - Less dense than water; will float
solubility
Soluble in benzene, hexane, and 4-methyl-2-pentanone
vapor_pressure
0.00000005 [mmHg]
flash_point
385 u00b0F (USCG, 1999)
GHS / SDS Safety Danger
Irritant Corrosive
  • H332 (17%): Harmful if inhaled [Warning Acute toxicity, inhalation]
  • H315 (10.3%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H302+H312 (41.3%): Harmful if swallowed or in contact with skin [Warning Acute toxicity, oral; acute toxicity, dermal]
  • H318 (64%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H314 (85.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
  • H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
  • H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
  • H302 (60.5%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
  • H302: Harmful if swallowed [Warning Acute toxicity, oral]
  • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H312 (82.3%): Harmful in contact with skin [Warning Acute toxicity, dermal]
  • H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Chemical Identity
CAS Number298-07-7
IUPAC Namebis(2-ethylhexyl) hydrogen phosphate
InChI KeySEGLCEQVOFDUPX-UHFFFAOYSA-N
PubChem CID 9275
Synonyms & Trade Names
Bis(2-ethylhexyl) hydrogen phosphate BIS(2-ETHYLHEXYL) PHOSPHATE Di(2-ethylhexyl) phosphate Bis(2-ethylhexyl)phosphate Bis(2-ethylhexyl)phosphoric acid Di-2-ethylhexyl hydrogen phosphate Bis(2-ethylhexyl)hydrogen phosphate Phosphoric acid, bis(2-ethylhexyl) ester Di(2-ethylhexyl)orthophosphoric acid Hydrogen bis(2-ethylhexyl) phosphate 2-Ethyl-1-hexanol hydrogen phosphate Di(2-ethylhexyl) phosphoric acid Bis(2-ethylhexyl)orthophosphoric acid Di-2(ethylhexyl)phosphoric acid di-(2-ethylhexyl)phosphoric acid
Full Description

Classic SX extractant (Zn, REE, etc.)