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Diphenylsilane

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Diphenylsilane Basic information
Diphenylsilane Chemical Properties
  • Melting point:<20°C
  • Boiling point:95-97 °C/13 mmHg (lit.)
  • Density 0.993 g/mL at 25 °C (lit.)
  • refractive index n20/D 1.579(lit.)
  • Flash point:209 °F
  • storage temp. Inert atmosphere,2-8°C
  • form liquid
  • Specific Gravity1
  • color colorless
  • Water Solubility Decomposes in water.
  • Sensitive Air & Moisture Sensitive
  • Hydrolytic Sensitivity3: reacts with aqueous base
  • BRN 2935887
  • InChIKeyVDCSGNNYCFPWFK-UHFFFAOYSA-N
  • CAS DataBase Reference775-12-2(CAS DataBase Reference)
  • NIST Chemistry ReferenceSilane, diphenyl-(775-12-2)
  • EPA Substance Registry SystemSilane, diphenyl- (775-12-2)
Safety Information
MSDS
Diphenylsilane Usage And Synthesis
  • Chemical Propertiesclear colorless liquid
  • Purification MethodsDissolve it in Et2O, mix slowly with ice-cold 10% AcOH. The Et2O layer is then shaken with H2O until the washings are neutral to litmus. Dry over Na2SO4, evaporate the Et2O and distil the residual oil under reduced pressure using a Claisen flask with the take-off head modified into a short column. Ph2SiH2 boils at 257o/760mm, but it cannot be distilled at this temperature because exposure to air leads to flashing, decomposition and formation of silica. It is a colourless, odourless oil, miscible with organic solvents but not H2O. A possible impurity is Ph3SiH which has m 43-45o and would be found in the residue. [West & Rochow J Org Chem 18 303 1953, Benkhesser et al. J Am Chem Soc 74 648 1952, Gilman & Zuech J Am Chem Soc 81 5925 1959, Beilstein 16 IV 1366.]
Diphenylsilane(775-12-2)Related Product Information
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