2,4-D-methyl

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.90

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  289.14  (Adapted Stein & Brown method)
    Melting Pt (deg C):  74.53  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000406  (Modified Grain method)
    MP  (exp database):  119 deg C
    VP  (exp database):  2.30E-03 mm Hg at 25 deg C
    Subcooled liquid VP: 0.0196 mm Hg (25 deg C, exp database VP )

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  94.69
       log Kow used: 2.90 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  258 mg/L (25 deg C)
        Exper. Ref:  PARIS,DF ET AL. (1984)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  85.66 mg/L
    Wat Sol (Exper. database match) =  258.00
       Exper. Ref:  PARIS,DF ET AL. (1984)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.95E-006  atm-m3/mole
   Group Method:   2.18E-005  atm-m3/mole
   Exper Database: 2.76E-06  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.326E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.90  (KowWin est)
  Log Kaw used:  -3.948  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  6.848
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5769
   Biowin2 (Non-Linear Model)     :   0.8773
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.3486  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.4840  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6386
   Biowin6 (MITI Non-Linear Model):   0.4699
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0415
 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):  2.61 Pa (0.0196 mm Hg)
  Log Koa (Koawin est  ): 6.848
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.15E-006 
       Octanol/air (Koa) model:  1.73E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.15E-005 
       Mackay model           :  9.18E-005 
       Octanol/air (Koa) model:  0.000138 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.8170 E-12 cm3/molecule-sec
      Half-Life =     2.802 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    33.627 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 6.66E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  157.4
      Log Koc:  2.197 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  4.452E+000  L/mol-sec
  Kb Half-Life at pH 8:       1.802  days   
  Kb Half-Life at pH 7:      18.017  days   

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 1.536 (BCF = 34.33)
       log Kow used: 2.90 (estimated)

 Volatilization from Water:
    Henry LC:  2.76E-006 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:      326.8  hours   (13.62 days)
    Half-Life from Model Lake :       3694  hours   (153.9 days)

 Removal In Wastewater Treatment:
    Total removal:               5.07  percent
    Total biodegradation:        0.12  percent
    Total sludge adsorption:     4.80  percent
    Total to Air:                0.15  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.51            67.2         1000       
   Water     19.6            900          1000       
   Soil      78.6            1.8e+003     1000       
   Sediment  0.358           8.1e+003     0          
     Persistence Time: 1.05e+003 hr