| Identification | More | [Name]
Phenylphosphonic acid | [CAS]
1571-33-1 | [Synonyms]
BENZENEPHOSPHONIC ACID
DICHLOROPHOSPHORIC ACID PHENYL ESTER
MPCP
PHENYL DICHLOROPHOSPHATE
PHENYL PHOSPHODICHLORIDATE
PHENYLPHOSPHONIC ACID
PHENYLPHOSPHORIC ACID DICHLORIDE
PHENYL PHOSPHORODICHLORIDATE
PHENYLPHOSPHORYL DICHLORIDE
PHOSPHORIC ACID PHENYL ESTER DICHLORIDE
PPOA
Benzolphosphonsαure
Dihydrogenphenylphosphonate
phenyl-phosphonicaci
Phosphonicacid,phenyl-
Phenylphosphonicacid,98% | [EINECS(EC#)]
212-220-6 | [Molecular Formula]
C6H7O3P | [MDL Number]
MFCD00002067 | [Molecular Weight]
158.09 | [MOL File]
1571-33-1.mol |
| Chemical Properties | Back Directory | [Appearance]
white to off-white crystalline powder | [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.)
| [Fp ]
>230 °F
| [storage temp. ]
2-8°C
| [form ]
Crystalline Powder | [pka]
pK1:1.83;pK2:7.07 (25°C) | [color ]
White to off-white | [Water Solubility ]
40.4 g/100 mL (25 ºC) | [BRN ]
2245168 | [LogP]
-3.3-0.086 at 20-25℃ and pH4-7 | [Surface tension]
71.2mN/m at 1g/L and 20℃ | [Uses]
Intermediate in antifouling paint agents; catalyst in organic reactions. | [CAS DataBase Reference]
1571-33-1(CAS DataBase Reference) | [EPA Substance Registry System]
1571-33-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,Xn | [Risk Statements ]
R34:Causes burns.
R37:Irritating to the respiratory system.
R41:Risk of serious damage to eyes.
R37/38:Irritating to respiratory system and skin .
R22:Harmful if swallowed.
R38:Irritating to the skin. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S37/39:Wear suitable gloves and eye/face protection . | [RIDADR ]
UN 3265 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
TD4393000
| [F ]
10 | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
29319090 | [Toxicity]
mouse,LD50,intraperitoneal,110mg/kg (110mg/kg),"Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 2, Pg. 55, 1950. |
| Hazard Information | Back Directory | [Hazard]
Highly toxic. | [Chemical Properties]
white to off-white crystalline powder | [Definition]
ChEBI: Phenylphosphonic acid is a member of benzenes. | [Purification Methods]
It is best to recrystallise it from H2O by concentrating an aqueous solution to a small volume and allowing to crystallise. Wash the crystals with ice cold H2O and dry them in a vacuum desiccator over H2SO4. [Lecher et al. J Am Chem Soc 76 1045 1954.] pK2 5 values in H2O are 7.07, and in 50% EtOH 8.26. [Jaffé et al. J Am Chem Soc 75 2209 1953, IR: Daasch & Smith Anal Chem 23 853 1951, Beilstein 16 IV 1068.] |
|
|