Its English name is Phenylphosphonic acid
CAS number: 1571-33-1
Molecular formula: C6H7O3P
Molecular weight: 158.09
EINECS number: 216-388-1
MDL No. : MFCD00002136
Stats
Melting point 162-164 °C (lit.)
Boiling point 241-243 °C(lit.)
Density 1.412 g/mL at 25 °C(lit.)
Vapor pressure 0-0Pa at 20-25℃
Refractive index n20/D 1.523(lit.)
Flash point >230 °F
Storage conditions Sealed in dry,Room Temperature
Acidity coefficient (pKa)pK1:1.83; pK2:7.07 (25°C)
Morphology Crystalline Powder
Color White to off-white
Water solubility 40.4 g/100 mL (25 ºC)
BRN2245168
LogP-3.3-0.086 at 20-25℃ and pH4-7
Surface tension 71.2mN/m at 1g/L and 20℃
Safety information
hazard symbol (GHS)GHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07
Danger
Hazard Description H302-H314
Precautions P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338
Dangerous Goods Mark C,Xn
Hazard category code 34-37-41-37/38-22-38
Safety Instructions 26-39-37/39-45-36/37/39
Dangerous Goods Transport No. UN 3265 8/PG 2
WGK Germany3
RTECS number TD4393000
F10
TSCAYes
Danger level 8
Packaging Category III
Customs Code 29319090
Toxic mouse, LD50, intraperitoneal, 110 mg/kg (110 mg/kg), "the Summary Tables of in Tests," National Research Council Chemical-Biological Coordination Center. Vol. 2, Pg. 55, 1950.
China
