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1571-33-1

Name Phenylphosphonic acid
CAS 1571-33-1
EINECS(EC#) 212-220-6
Molecular Formula C6H7O3P
MDL Number MFCD00002067
Molecular Weight 158.09
MOL File 1571-33-1.mol
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Chemical Properties

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

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.

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