-
Name
Diphenylphosphine oxide
- EINECS 625-671-2
- CAS No. 4559-70-0
- Article Data111
- CAS DataBase
- Density
- Solubility Slightly soluble in water.
- Melting Point 56-57 °C(lit.)
- Formula C12H11OP
- Boiling Point 329.217 °C at 760 mmHg
- Molecular Weight 202.193
- Flash Point 152.905 °C
- Transport Information
- Appearance Yellow to light orange crystals
- Safety 26
- Risk Codes 22-36/37/38
-
Molecular Structure
-
Hazard Symbols
Xn
- Synonyms NSC 77604;
- PSA 40.54000
- LogP 2.19710
Diphenylphosphine oxide Chemical Properties
IUPAC Name: Oxo(diphenyl)phosphanium
Empirical Formula: C12H11OP
Molecular Weight: 202.1889
Canonical SMILES: C1=CC=C(C=C1)[P+](=O)C2=CC=CC=C2
InChI: InChI=1S/C12H10OP/c13-14(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H/q+1
InChIKey: YFPJFKYCVYXDJK-UHFFFAOYSA-N
XLogP3-AA: 2.5
H-Bond Donor: 0
H-Bond Acceptor: 1
Melting Point: 56-57 °C(lit.)
Refractive index: 1.608-1.61
Sensitive: Moisture Sensitive
Flash Point: 152.9 °C
Enthalpy of Vaporization: 54.9 kJ/mol
Boiling Point: 329.2 °C at 760 mmHg
Vapour Pressure: 0.000345 mmHg at 25 °C
Product Categories of Phosphine oxide,diphenyl- (CAS NO.4559-70-0): Pharmaceutical Intermediates; Catalysis and Inorganic Chemistry; Phosphorus Compounds; Phosphorus Precursors
Diphenylphosphine oxide Safety Profile
Hazard Codes: 
Xn
Risk Statements: 22-36/37/38
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany of Phosphine oxide,diphenyl- (CAS NO.4559-70-0): 2
Diphenylphosphine oxide Specification
Phosphine oxide,diphenyl- (CAS NO.4559-70-0), its Synonyms are Diphenylphosphaneoxide ; Diphenylphosphinigsaure ; Diphenylphosphinit ; Diphenylphosphinous acid ; Phosphorane, diphenyl-, oxide . It is yellow to light orange crystals.
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