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Phenylphosphonic acid Structure

Phenylphosphonic acid

Chemical Properties

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 temp.  Sealed in dry,Room Temperature
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℃
CAS DataBase Reference 1571-33-1(CAS DataBase Reference)
FDA UNII BYD76T2868
EPA Substance Registry System Phosphonic acid, phenyl- (1571-33-1)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H314
Precautionary statements P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338
Hazard Codes  C,Xn
Risk Statements  34-37-41-37/38-22-38
Safety Statements  26-39-37/39-45-36/37/39
RIDADR  UN 3265 8/PG 2
WGK Germany  3
RTECS  TD4393000
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.
NFPA 704:
0
2 0

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