ChemSpider 2D Image | Benzene, 1,1'-ethylidenebis(4-methyl- | C16H18

Benzene, 1,1'-ethylidenebis(4-methyl-

  • Molecular FormulaC16H18
  • Average mass210.314 Da
  • Monoisotopic mass210.140854 Da
  • ChemSpider ID61558

More details:

Featured data source

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

1,1'-(1,1-Ethandiyl)bis(4-methylbenzol) [German] [ACD/IUPAC Name]
1,1'-(1,1-Ethanediyl)bis(4-methylbenzene) [ACD/IUPAC Name]
1,1'-(1,1-Éthanediyl)bis(4-méthylbenzène) [French] [ACD/IUPAC Name]
Benzene, 1,1'-ethylidenebis(4-methyl-
Benzene, 1,1'-ethylidenebis[4-methyl- [ACD/Index Name]

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

Density: 1.0±0.1 g/cm3
Boiling Point: 299.0±0.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.3 mmHg at 25°C
Enthalpy of Vaporization: 51.7±0.8 kJ/mol
Flash Point: 142.1±13.1 °C
Index of Refraction: 1.552
Molar Refractivity: 69.9±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 1
ACD/LogP: 5.47
ACD/LogD (pH 5.5): 5.16
ACD/BCF (pH 5.5): 4911.83
ACD/KOC (pH 5.5): 15268.08
ACD/LogD (pH 7.4): 5.16
ACD/BCF (pH 7.4): 4911.83
ACD/KOC (pH 7.4): 15268.08
Polar Surface Area: 0 Å2
Polarizability: 27.7±0.5 10-24cm3
Surface Tension: 35.1±3.0 dyne/cm
Molar Volume: 218.6±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) =  5.24

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  305.93  (Adapted Stein & Brown method)
    Melting Pt (deg C):  62.38  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00223  (Modified Grain method)
    MP  (exp database):  < -20 deg C
    BP  (exp database):  297.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.285
       log Kow used: 5.24 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.17102 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.76E-004  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.803E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  5.24  (KowWin est)
  Log Kaw used:  -1.499  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.739
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8114
   Biowin2 (Non-Linear Model)     :   0.8524
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.5098  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3387  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2258
   Biowin6 (MITI Non-Linear Model):   0.1560
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.8318
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   1.2397
     BioHC Half-Life (days)     :  17.3680

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.297 Pa (0.00223 mm Hg)
  Log Koa (Koawin est  ): 6.739
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.01E-005 
       Octanol/air (Koa) model:  1.35E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000364 
       Mackay model           :  0.000807 
       Octanol/air (Koa) model:  0.000108 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  14.6302 E-12 cm3/molecule-sec
      Half-Life =     0.731 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     8.773 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.000585 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  4.999E+004
      Log Koc:  4.699 

 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 = 3.338 (BCF = 2179)
       log Kow used: 5.24 (estimated)

 Volatilization from Water:
    Henry LC:  0.000776 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      2.574  hours
    Half-Life from Model Lake :      149.7  hours   (6.237 days)

 Removal In Wastewater Treatment:
    Total removal:              85.06  percent
    Total biodegradation:        0.68  percent
    Total sludge adsorption:    81.13  percent
    Total to Air:                3.25  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.755           17.5         1000       
   Water     6.71            900          1000       
   Soil      67              1.8e+003     1000       
   Sediment  25.6            8.1e+003     0          
     Persistence Time: 1.29e+003 hr


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