4-Methyl-5,6-dihydro-2H-pyran-2-one

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) =  0.52

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  219.60  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -13.47  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.134  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  3.868e+004
       log Kow used: 0.52 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  14539 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.00E-004  atm-m3/mole
   Group Method:   8.88E-006  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  5.111E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.52  (KowWin est)
  Log Kaw used:  -2.388  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  2.908
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8683
   Biowin2 (Non-Linear Model)     :   0.9959
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0916  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9149  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7683
   Biowin6 (MITI Non-Linear Model):   0.9051
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6148
 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):  16.5 Pa (0.124 mm Hg)
  Log Koa (Koawin est  ): 2.908
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.81E-007 
       Octanol/air (Koa) model:  1.99E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  6.55E-006 
       Mackay model           :  1.45E-005 
       Octanol/air (Koa) model:  1.59E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  33.5379 E-12 cm3/molecule-sec
      Half-Life =     0.319 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     3.827 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     7.393750 E-17 cm3/molecule-sec
      Half-Life =     0.155 Days (at 7E11 mol/cm3)
      Half-Life =      3.720 Hrs
   Fraction sorbed to airborne particulates (phi): 1.05E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  21.31
      Log Koc:  1.329 

 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: 0.52 (estimated)

 Volatilization from Water:
    Henry LC:  8.88E-006 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:       70.9  hours   (2.954 days)
    Half-Life from Model Lake :      862.2  hours   (35.93 days)

 Removal In Wastewater Treatment:
    Total removal:               2.35  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  percent
    Total to Air:                0.50  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.419           2.5          1000       
   Water     47.2            360          1000       
   Soil      52.2            720          1000       
   Sediment  0.0891          3.24e+003    0          
     Persistence Time: 324 hr