Thiophene, 2-[(methylthio)ethynyl]-

Predicted data is generated using the ACD/Labs’ ACD/PhysChem Suite, for more information see their website.

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, for more information see their website.

                    
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.22

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  249.14  (Adapted Stein & Brown method)
    Melting Pt (deg C):  59.51  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0133  (Modified Grain method)
    Subcooled liquid VP: 0.0278 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  918.4
       log Kow used: 2.22 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  425.8 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.92E-005  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.939E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.22  (KowWin est)
  Log Kaw used:  -2.923  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.143
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6741
   Biowin2 (Non-Linear Model)     :   0.6939
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8583  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6252  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2783
   Biowin6 (MITI Non-Linear Model):   0.1755
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.4702
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   1.1061
     BioHC Half-Life (days)     :  12.7661

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  3.71 Pa (0.0278 mm Hg)
  Log Koa (Koawin est  ): 5.143
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  8.09E-007 
       Octanol/air (Koa) model:  3.41E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.92E-005 
       Mackay model           :  6.47E-005 
       Octanol/air (Koa) model:  2.73E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  34.7461 E-12 cm3/molecule-sec
      Half-Life =     0.308 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.694 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.036000 E-17 cm3/molecule-sec
      Half-Life =    31.833 Days (at 7E11 mol/cm3)
   Fraction sorbed to airborne particulates (phi): 4.7E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  955
      Log Koc:  2.980 

 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 = 1.012 (BCF = 10.27)
       log Kow used: 2.22 (estimated)

 Volatilization from Water:
    Henry LC:  2.92E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      26.17  hours   (1.09 days)
    Half-Life from Model Lake :      389.6  hours   (16.23 days)

 Removal In Wastewater Treatment:
    Total removal:               4.04  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:     2.38  percent
    Total to Air:                1.57  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.916           7.32         1000       
   Water     28.8            360          1000       
   Soil      70.1            720          1000       
   Sediment  0.133           3.24e+003    0          
     Persistence Time: 404 hr