1-Ethyl-2-methylcyclopentane C8H16 structure – Flashcards

Flashcard maker : Oscar Hall

C8H16 structure
Molecular Formula C8H16
Average mass 112.213 Da
Density 0.8±0.1 g/cm3
Boiling Point 124.1±7.0 °C at 760 mmHg
Flash Point 13.5±11.7 °C
Molar Refractivity 37.1±0.3 cm3
Polarizability 14.7±0.5 10-24cm3
Surface Tension 24.0±3.0 dyne/cm
Molar Volume 146.3±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      -106 °C Jean-Claude Bradley Open Melting Point Dataset 24734, 24735
      -105.9 °C Jean-Claude Bradley Open Melting Point Dataset 24734, 24735
  • Gas Chromatography
    • Retention Index (Kovats):

      821 (estimated with error: 39) NIST Spectra mainlib_1613, mainlib_150594, replib_114273, replib_118884
    • Retention Index (Normal Alkane):

      776 (Program type: Complex; Column… (show more) class: Standard non-polar; Column diameter: 0.15 mm; Column length: 50 m; Column type: Capillary; Description: 30C(5min)=>2C/min =>80C=>5C/min=>120C=> 10C/min =>190C; CAS no: 3726463; Active phase: BP-1; Carrier gas: H2; Data type: Normal alkane RI; Authors: SGE, Analysis of gasoline range hydrocarbons. PET 01 – Petroleum, 2004.) NIST Spectra nist ri
      789 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 50 C; CAS no: 3726463; Active phase: OV-101; Data type: Normal alkane RI; Authors: Wu, J.; Lu, W., Kovats indices of C4-C10 hydrocarbons in apolar quartz capillary OV-101, Chin. J. Chromatogr., 1(1), 1984, 11-17.) NIST Spectra nist ri
      793 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 70 C; CAS no: 3726463; Active phase: OV-101; Data type: Normal alkane RI; Authors: Wu, J.; Lu, W., Kovats indices of C4-C10 hydrocarbons in apolar quartz capillary OV-101, Chin. J. Chromatogr., 1(1), 1984, 11-17.) NIST Spectra nist ri
      788 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column type: Capillary; CAS no: 3726463; Active phase: Squalane; Data type: Normal alkane RI; Authors: Chen, H.-F., Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression, Anal. Chim. Acta, 609, 2008, 24-36.) NIST Spectra nist ri
      811 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column type: Capillary; CAS no: 3726463; Active phase: Squalane; Data type: Normal alkane RI; Authors: Chen, H.-F., Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression, Anal. Chim. Acta, 609, 2008, 24-36.) NIST Spectra nist ri
      792 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.50 mm; Column length: 100 m; Column type: Capillary; CAS no: 3726463; Active phase: SE-52; Data type: Normal alkane RI; Authors: van Langenhove, H.; Schamp, N., Identification of Volatiles in the Head Space of Acid-Treated Phosphate Rock by Gas Chromatography-Mass Spectromety, J. Chromatogr., 351, 1986, 65-75.) NIST Spectra nist ri
      794 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.50 mm; Column length: 100 m; Column type: Capillary; CAS no: 3726463; Active phase: SE-52; Data type: Normal alkane RI; Authors: van Langenhove, H.; Schamp, N., Identification of Volatiles in the Head Space of Acid-Treated Phosphate Rock by Gas Chromatography-Mass Spectromety, J. Chromatogr., 351, 1986, 65-75.) 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: 124.1±7.0 °C at 760 mmHg
Vapour Pressure: 15.6±0.1 mmHg at 25°C
Enthalpy of Vaporization: 34.7±0.8 kJ/mol
Flash Point: 13.5±11.7 °C
Index of Refraction: 1.421
Molar Refractivity: 37.1±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 1
#Rule of 5 Violations: 0
ACD/LogP: 4.34
ACD/LogD (pH 5.5): 4.23
ACD/BCF (pH 5.5): 966.69
ACD/KOC (pH 5.5): 4769.46
ACD/LogD (pH 7.4): 4.23
ACD/BCF (pH 7.4): 966.69
ACD/KOC (pH 7.4): 4769.46
Polar Surface Area: 0 Å2
Polarizability: 14.7±0.5 10-24cm3
Surface Tension: 24.0±3.0 dyne/cm
Molar Volume: 146.3±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) = 4.01

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 121.35 (Adapted Stein & Brown method)
 Melting Pt (deg C): -64.69 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 17.9 (Mean VP of Antoine & Grain methods)
 MP (exp database): -105.9 deg C
 BP (exp database): 121.2 deg C
 VP (exp database): 2.00E+01 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 11.67
 log Kow used: 4.01 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 3.7057 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 4.50E-001 atm-m3/mole
 Group Method: 5.60E-001 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 2.265E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 4.01 (KowWin est)
 Log Kaw used: 1.265 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 2.745
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.6941
 Biowin2 (Non-Linear Model) : 0.8046
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.9512 (weeks )
 Biowin4 (Primary Survey Model) : 3.6858 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.5126
 Biowin6 (MITI Non-Linear Model): 0.5511
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.4218
 Ready Biodegradability Prediction: YES

 Hydrocarbon Biodegradation (BioHCwin v1.01):
 LOG BioHC Half-Life (days) : 0.6831
 BioHC Half-Life (days) : 4.8210

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 2.67E+003 Pa (20 mm Hg)
 Log Koa (Koawin est ): 2.745
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.12E-009 
 Octanol/air (Koa) model: 1.36E-010 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 4.06E-008 
 Mackay model : 9E-008 
 Octanol/air (Koa) model: 1.09E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 8.3853 E-12 cm3/molecule-sec
 Half-Life = 1.276 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 15.307 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 6.53E-008 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 464.2
 Log Koc: 2.667 

 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 = 2.388 (BCF = 244.5)
 log Kow used: 4.01 (estimated)

 Volatilization from Water:
 Henry LC: 0.45 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 1.082 hours
 Half-Life from Model Lake : 100.6 hours (4.193 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
 Total removal: 99.50 percent
 Total biodegradation: 0.06 percent
 Total sludge adsorption: 17.52 percent
 Total to Air: 81.92 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 21.9 30.6 1000 
 Water 54.8 360 1000 
 Soil 16.1 720 1000 
 Sediment 7.13 3.24e+003 0 
 Persistence Time: 112 hr




 

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