2,3,5-Trimethyl-6-ethylpyrazine

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) =  2.62

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  228.42  (Adapted Stein & Brown method)
    Melting Pt (deg C):  46.06  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0513  (Modified Grain method)
    Subcooled liquid VP: 0.0799 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):  437.7
       log Kow used: 2.62 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2342 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   5.75E-006  atm-m3/mole
   Group Method:   3.79E-008  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.317E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.62  (KowWin est)
  Log Kaw used:  -3.629  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.249
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8947
   Biowin2 (Non-Linear Model)     :   0.9602
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.5678  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3569  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3343
   Biowin6 (MITI Non-Linear Model):   0.2700
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4806
 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):  10.7 Pa (0.0799 mm Hg)
  Log Koa (Koawin est  ): 6.249
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  2.82E-007 
       Octanol/air (Koa) model:  4.36E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.02E-005 
       Mackay model           :  2.25E-005 
       Octanol/air (Koa) model:  3.48E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.8503 E-12 cm3/molecule-sec
      Half-Life =     2.778 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    33.335 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.63E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  248.5
      Log Koc:  2.395 

 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 = 1.318 (BCF = 20.79)
       log Kow used: 2.62 (estimated)

 Volatilization from Water:
    Henry LC:  5.75E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      126.1  hours   (5.252 days)
    Half-Life from Model Lake :       1478  hours   (61.58 days)

 Removal In Wastewater Treatment:
    Total removal:               3.80  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     3.37  percent
    Total to Air:                0.32  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.72            66.7         1000       
   Water     21.6            900          1000       
   Soil      76.4            1.8e+003     1000       
   Sediment  0.222           8.1e+003     0          
     Persistence Time: 972 hr