Melting point :-14.5 °C
Boiling point :280 °C(lit.)
Density :1.07 g/mL at 25 °C(lit.)
vapor pressure :2 mm Hg ( 110 °C)
refractive index :n20/D 1.625(lit.)
Flash point :-18°C (Hexane)
storage temp. :2-8°C
solubility :Chloroform
form :liquid
pka :diphenylphosphine is weakly basic. The pKa of the protonated derivative is 0.03.
color :colorless
Specific Gravity :0.68
Water Solubility :Miscible with ethanol, ether, benzene, concentrated hydrochloric acid. Immiscible with water.
Sensitive :Air & Moisture Sensitive
Hydrolytic Sensitivity :8: reacts rapidly with moisture, water, protic solvents
BRN :742504
InChIKey :GPAYUJZHTULNBE-UHFFFAOYSA-N
CAS DataBase Reference :829-85-6(CAS DataBase Reference)
NIST Chemistry Reference :Phosphine, diphenyl-(829-85-6)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H250 Catches fire spontaneously if exposed to air Pyrophoric liquids; Pyrorophoric solids Category 1 Danger P210, P222, P280, P302+P334,P370+P378, P422 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P222 Do not allow contact with air. P231+P232 Handle under inert gas. Protect from moisture. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P370+P378 In case of fire: Use … for extinction.