Valproic acid

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) =  2.96
    Log Kow (Exper. database match) =  2.75
       Exper. Ref:  Sangster (1993)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  234.20  (Adapted Stein & Brown method)
    Melting Pt (deg C):  37.72  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0847  (Modified Grain method)
    BP  (exp database):  222 deg C
    Subcooled liquid VP: 0.11 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):  894.6
       log Kow used: 2.75 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  2000 mg/L (20 deg C)
        Exper. Ref:  RIEMENSCHNEIDER (1986)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1861.5 mg/L
    Wat Sol (Exper. database match) =  2000.00
       Exper. Ref:  RIEMENSCHNEIDER (1986)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.00E-006  atm-m3/mole
   Group Method:   3.62E-006  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.797E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.75  (exp database)
  Log Kaw used:  -3.911  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.661
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7516
   Biowin2 (Non-Linear Model)     :   0.8326
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.2451  (weeks       )
   Biowin4 (Primary Survey Model) :   4.0252  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6121
   Biowin6 (MITI Non-Linear Model):   0.7602
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8018
 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):  14.7 Pa (0.11 mm Hg)
  Log Koa (Koawin est  ): 6.661
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  2.05E-007 
       Octanol/air (Koa) model:  1.12E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  7.39E-006 
       Mackay model           :  1.64E-005 
       Octanol/air (Koa) model:  9E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   8.1796 E-12 cm3/molecule-sec
      Half-Life =     1.308 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    15.692 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.19E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  24.06
      Log Koc:  1.381 

 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 = 0.500 (BCF = 3.162)
       log Kow used: 2.75 (expkow database)

 Volatilization from Water:
    Henry LC:  3.62E-006 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      195.5  hours   (8.144 days)
    Half-Life from Model Lake :       2233  hours   (93.04 days)

 Removal In Wastewater Treatment:
    Total removal:               4.24  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     3.93  percent
    Total to Air:                0.20  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.2             31.4         1000       
   Water     25.6            360          1000       
   Soil      71.9            720          1000       
   Sediment  0.272           3.24e+003    0          
     Persistence Time: 466 hr