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Triphenylphosphine oxide Structure

Triphenylphosphine oxide

Chemical Properties

Melting point 150-157 °C(lit.)
Boiling point 360 °C
Density  1,212 g/cm3
vapor pressure  <1 hPa (50 °C)
Flash point 180 °C
storage temp.  Store below +30°C.
solubility  methanol: 25 mg/mL, clear
form  Crystalline Powder or Flakes
Specific Gravity 1.212
color  White to pink-brown
Water Solubility  slightly soluble
Hydrolytic Sensitivity 4: no reaction with water under neutral conditions
BRN  745854
LogP 2.8
CAS DataBase Reference 791-28-6(CAS DataBase Reference)
NIST Chemistry Reference (C6H5)3PO(791-28-6)
EPA Substance Registry System Triphenylphosphine oxide (791-28-6)

Safety Information

Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38-52/53
Safety Statements  26-61-36
RIDADR  3077
WGK Germany  2
RTECS  SZ1676000
Autoignition Temperature 590 °C
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29310095
Toxicity LD50 orally in Rabbit: 685 mg/kg

MSDS

Usage And Synthesis

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