1,4-Dimethylnaphthalene

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

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  4.26
    Log Kow (Exper. database match) =  4.37
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  266.66  (Adapted Stein & Brown method)
    Melting Pt (deg C):  39.02  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0103  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  7.6 deg C
    BP  (exp database):  268 deg C
    VP  (exp database):  2.14E-02 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  13.2
       log Kow used: 4.37 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  11.4 mg/L (25 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.2212 mg/L
    Wat Sol (Exper. database match) =  11.40
       Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   6.41E-004  atm-m3/mole
   Group Method:   4.25E-004  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.604E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.37  (exp database)
  Log Kaw used:  -1.582  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.952
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7825
   Biowin2 (Non-Linear Model)     :   0.8748
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7042  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.4853  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3796
   Biowin6 (MITI Non-Linear Model):   0.3432
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4800
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   1.1526
     BioHC Half-Life (days)     :  14.2117

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  2.85 Pa (0.0214 mm Hg)
  Log Koa (Koawin est  ): 5.952
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.05E-006 
       Octanol/air (Koa) model:  2.2E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  3.8E-005 
       Mackay model           :  8.41E-005 
       Octanol/air (Koa) model:  1.76E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  69.3968 E-12 cm3/molecule-sec
      Half-Life =     0.154 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.850 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 6.1E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  5022
      Log Koc:  3.701 

 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 = 2.665 (BCF = 462.3)
       log Kow used: 4.37 (expkow database)

 Volatilization from Water:
    Henry LC:  0.000425 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      2.997  hours
    Half-Life from Model Lake :      137.5  hours   (5.729 days)

 Removal In Wastewater Treatment:
    Total removal:              54.81  percent
    Total biodegradation:        0.43  percent
    Total sludge adsorption:    46.26  percent
    Total to Air:                8.12  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.249           3.7          1000       
   Water     9.84            900          1000       
   Soil      84.4            1.8e+003     1000       
   Sediment  5.48            8.1e+003     0          
     Persistence Time: 1e+003 hr