Trimethylsilanol C3H10OSi structure – Flashcards

Flashcard maker : Sarah Adrian
Molecular Formula C3H10OSi
Average mass 90.196 Da
Density 0.8±0.1 g/cm3
Boiling Point 75.0±9.0 °C at 760 mmHg
Flash Point -0.9±18.7 °C
Molar Refractivity 26.2±0.3 cm3
Polarizability 10.4±0.5 10-24cm3
Surface Tension 17.4±3.0 dyne/cm
Molar Volume 111.3±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      -12 °C SynQuest 67134, 6182-1-X0
      9-10 °C Oakwood
      [078729]
      12 °C (Literature) LabNetwork LN00174290
    • Experimental Boiling Point:

      98-99 °C Matrix Scientific
      98-100 °C Alfa Aesar H61276
      98-99 °C Matrix Scientific 075262
      98.6-99 °C SynQuest 67134, 6182-1-X0
      99 °C Oakwood
      [078729]
      98.6-99 °C LabNetwork LN00174290
    • Experimental Flash Point:

      4 °C Alfa Aesar
      4 °F (-15.5556 °C)
      Alfa Aesar H61276
      4 °C SynQuest 67134, 6182-1-X0
      1 °C Oakwood
      [078729]
      4 °C LabNetwork LN00174290
    • Experimental Gravity:

      0.814 g/mL Alfa Aesar H61276
      0.8144 g/mL Matrix Scientific 075262
      0.8144 g/mL SynQuest 6182-1-X0
      0.814 g/mL Oakwood
      [078729]
      0.8144 g/mL Fluorochem
      0.8144 g/l Fluorochem 078729
  • Miscellaneous
    • Safety:

      11 Alfa Aesar H61276
      3 Alfa Aesar H61276
      9-16-33-60 Alfa Aesar H61276
      Danger Alfa Aesar H61276
      FLAMMABLE Matrix Scientific 075262
      Flammable/Irritant SynQuest 6182-1-X0, 67134
      H225 Alfa Aesar H61276
      P210-P280-P240-P303+P361+P353-P403+P235-P501a Alfa Aesar H61276
  • Gas Chromatography
    • Retention Index (Kovats):

      369 (estimated with error: 89) NIST Spectra mainlib_141238, replib_61530, replib_226640
    • Retention Index (Normal Alkane):

      584 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.20 mm; Column length: 25 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 250 C; CAS no: 1066406; Active phase: OV-101; Carrier gas: N2/He; Phase thickness: 0.10 um; Data type: Normal alkane RI; Authors: Zenkevich, I.G., Experimentally measured retention indices., 2005.) NIST Spectra nist ri
      567 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 1066406; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R., Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas, Eur Commission EUR, , 1994, 549-568.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Density: 0.8±0.1 g/cm3
Boiling Point: 75.0±9.0 °C at 760 mmHg
Vapour Pressure: 73.9±0.3 mmHg at 25°C
Enthalpy of Vaporization: 36.9±6.0 kJ/mol
Flash Point: -0.9±18.7 °C
Index of Refraction: 1.387
Molar Refractivity: 26.2±0.3 cm3
#H bond acceptors: 1
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 1.04
ACD/LogD (pH 5.5): 1.06
ACD/BCF (pH 5.5): 3.77
ACD/KOC (pH 5.5): 89.95
ACD/LogD (pH 7.4): 1.06
ACD/BCF (pH 7.4): 3.77
ACD/KOC (pH 7.4): 89.95
Polar Surface Area: 20 Å2
Polarizability: 10.4±0.5 10-24cm3
Surface Tension: 17.4±3.0 dyne/cm
Molar Volume: 111.3±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 1.14

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 107.11 (Adapted Stein & Brown method)
 Melting Pt (deg C): -66.01 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 13.8 (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 4.256e+004
 log Kow used: 1.14 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1e+006 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 5.06E-005 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 3.848E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 1.14 (KowWin est)
 Log Kaw used: -2.684 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 3.824
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.7046
 Biowin2 (Non-Linear Model) : 0.8491
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.9998 (weeks )
 Biowin4 (Primary Survey Model) : 3.7176 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4450
 Biowin6 (MITI Non-Linear Model): 0.4950
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.5974
 Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
 Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 1.72E+003 Pa (12.9 mm Hg)
 Log Koa (Koawin est ): 3.824
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.74E-009 
 Octanol/air (Koa) model: 1.64E-009 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 6.3E-008 
 Mackay model : 1.4E-007 
 Octanol/air (Koa) model: 1.31E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 3.8988 E-12 cm3/molecule-sec
 Half-Life = 2.743 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 32.921 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 1.01E-007 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 48.64
 Log Koc: 1.687 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 0.180 (BCF = 1.512)
 log Kow used: 1.14 (estimated)

 Volatilization from Water:
 Henry LC: 5.06E-005 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 11.96 hours
 Half-Life from Model Lake : 210.1 hours (8.754 days)

 Removal In Wastewater Treatment:
 Total removal: 4.50 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.77 percent
 Total to Air: 2.64 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 7.34 65 1000 
 Water 41.7 360 1000 
 Soil 50.9 720 1000 
 Sediment 0.0862 3.24e+003 0 
 Persistence Time: 310 hr
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