CAS Number: 75-38-7
SMILES : FC(F)=C
CHEM   : Ethene, 1,1-difluoro-
MOL FOR: C2 H2 F2 
MOL WT : 64.04
------------------------------ EPI SUMMARY (v4.11) --------------------------
 Physical Property Inputs:
    Log Kow (octanol-water):   ------
    Boiling Point (deg C)  :   ------
    Melting Point (deg C)  :   ------
    Vapor Pressure (mm Hg) :   ------
    Water Solubility (mg/L):   ------
    Henry LC (atm-m3/mole) :   ------
 
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.68 estimate) =  1.24
    Log Kow (Exper. database match) =  1.24
       Exper. Ref:  HANSCH,C ET AL. (1995)
 
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
    Boiling Pt (deg C):  -40.36  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -156.32  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.87E+004  (Mean VP of Antoine & Grain methods)
    VP (Pa, 25 deg C) :  2.49E+006  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -144 deg C
    BP  (exp database):  -85.7 deg C
    VP  (exp database):  3.00E+04 mm Hg (4.00E+006 Pa) at 25 deg C
 
 Water Solubility Estimate from Log Kow (WSKOW v1.42):
    Water Solubility at 25 deg C (mg/L):  1.195e+004
       log Kow used: 1.24 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  169 mg/L (25 deg C)
        Exper. Ref:  HORVATH,AL (1982)
 
 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  12599 mg/L
 
 ECOSAR Class Program (ECOSAR v1.11):
    Class(es) found:
       Neutral Organics
 
 Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
   Bond Method :   2.26E-001  atm-m3/mole  (2.29E+004 Pa-m3/mole)
   Group Method:   Incomplete
   Exper Database: 3.79E-01  atm-m3/mole  (3.84E+004 Pa-m3/mole)
 For Henry LC Comparison Purposes:
   User-Entered Henry LC:  not entered
   Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
      HLC:  5.359E-003 atm-m3/mole  (5.430E+002 Pa-m3/mole)
      VP:   1.87E+004 mm Hg (source: MPBPVP)
      WS:   1.2E+004 mg/L (source: WSKOWWIN)
 
 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.24  (exp database)
  Log Kaw used:  1.190  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  0.050
      Log Koa (experimental database):  None
 
 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7171
   Biowin2 (Non-Linear Model)     :   0.8908
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0577  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7554  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5688
   Biowin6 (MITI Non-Linear Model):   0.0007
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6890
 Ready Biodegradability Prediction:   YES
 
Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!
 
 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  4E+006 Pa (3E+004 mm Hg)
  Log Koa (Koawin est  ): 0.050
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.5E-013 
       Octanol/air (Koa) model:  2.75E-013 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.71E-011 
       Mackay model           :  6E-011 
       Octanol/air (Koa) model:  2.2E-011 
 
 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   2.2667 E-12 cm3/molecule-sec
      Half-Life =     4.719 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    56.624 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.028000 E-17 cm3/molecule-sec
      Half-Life =    40.929 Days (at 7E11 mol/cm3)
   Fraction sorbed to airborne particulates (phi):
      4.35E-011 (Junge-Pankow, Mackay avg)
      2.2E-011 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation
 
 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  31.82  L/kg (MCI method)
      Log Koc:  1.503       (MCI method)
      Koc    :  11.91  L/kg (Kow method)
      Log Koc:  1.076       (Kow method)
 
 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
    Rate constants can NOT be estimated for this structure!
 
 Bioaccumulation Estimates (BCFBAF v3.01):
   Log BCF from regression-based method = 0.485 (BCF = 3.056 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -0.5707 days (HL = 0.2687 days)
   Log BCF Arnot-Gobas method (upper trophic) = 0.410 (BCF = 2.569)
   Log BAF Arnot-Gobas method (upper trophic) = 0.410 (BAF = 2.569)
       log Kow used: 1.24 (expkow database)
 
 Volatilization from Water:
    Henry LC:  0.379 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:     0.8178  hours   (49.07 min)
    Half-Life from Model Lake :      76.02  hours   (3.168 days)
 
 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.32  percent
    Total biodegradation:        0.02  percent
    Total sludge adsorption:     0.30  percent
    Total to Air:               99.01  percent
      (using 10000 hr Bio P,A,S)
 
 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       44.8            113          1000       
   Water     54.3            360          1000       
   Soil      0.793           720          1000       
   Sediment  0.171           3.24e+003    0          
     Persistence Time: 113 hr