CAS Num: 000075-07-0
SMILES : O=CC
CHEM   : Acetaldehyde
MOL FOR: C2 H4 O1 
MOL WT : 44.05
------------------------------ EPI SUMMARY (v4.00) --------------------------
 Physical Property Inputs:
    Water Solubility (mg/L):   ------
    Vapor Pressure (mm Hg) :   ------
    Henry LC (atm-m3/mole) :   ------
    Log Kow (octanol-water):   ------
    Boiling Point (deg C)  :   ------
    Melting Point (deg C)  :   ------

 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -0.17
    Log Kow (Exper. database match) =  -0.34
       Exper. Ref:  TSCATS

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
    Boiling Pt (deg C):  33.83  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -106.38  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  910  (Mean VP of Antoine & Grain methods)
    VP (Pa, 25 deg C) :  1.21E+005  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -123 deg C
    BP  (exp database):  20.1 deg C
    VP  (exp database):  9.02E+02 mm Hg (1.20E+005 Pa) at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.568e+005
       log Kow used: -0.34 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1e+006 mg/L (25 deg C)
        Exper. Ref:  RIDDICK,JA ET AL. (1986)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  4.7667e+005 mg/L

 ECOSAR Class Program (ECOSAR v1.00):
    Class(es) found:
       Aldehydes (Mono)

 Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
   Bond Method :   6.78E-005  atm-m3/mole  (6.87E+000 Pa-m3/mole)
   Group Method:   6.00E-005  atm-m3/mole  (6.08E+000 Pa-m3/mole)
   Exper Database: 6.67E-05  atm-m3/mole  (6.76E+000 Pa-m3/mole)
 For Henry LC Comparison Purposes:
   User-Entered Henry LC:  not entered
   Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
      HLC:  1.715E-004 atm-m3/mole  (1.738E+001 Pa-m3/mole)
      VP:   910 mm Hg (source: MPBPVP)
      WS:   2.57E+005 mg/L (source: WSKOWWIN)

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.34  (exp database)
  Log Kaw used:  -2.564  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  2.224
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0112
   Biowin2 (Non-Linear Model)     :   0.9999
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1241  (weeks       )
   Biowin4 (Primary Survey Model) :   3.9808  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.9929
   Biowin6 (MITI Non-Linear Model):   0.9823
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8791
 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):  1.2E+005 Pa (902 mm Hg)
  Log Koa (Koawin est  ): 2.224
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  2.49E-011 
       Octanol/air (Koa) model:  4.11E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  9.01E-010 
       Mackay model           :  2E-009 
       Octanol/air (Koa) model:  3.29E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  16.9800 E-12 cm3/molecule-sec
      Half-Life =     0.630 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     7.559 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi):
      1.45E-009 (Junge-Pankow, Mackay avg)
      3.29E-009 (Koa method)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (KOCWIN v2.00):
      Koc    :  1  L/kg (MCI method)
      Log Koc:  0.000       (MCI method)
      Koc    :  3.219  L/kg (Kow method)
      Log Koc:  0.508       (Kow method)

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates (BCFBAF v3.00):
   Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
   Log Biotransformation Half-life (HL) = -1.2629 days (HL = 0.05458 days)
   Log BCF Arnot-Gobas method (upper trophic) = -0.033 (BCF = 0.9265)
   Log BAF Arnot-Gobas method (upper trophic) = -0.033 (BAF = 0.9265)
       log Kow used: -0.34 (expkow database)

 Volatilization from Water:
    Henry LC:  6.67E-005 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:      6.503  hours
    Half-Life from Model Lake :      126.6  hours   (5.275 days)

 Removal In Wastewater Treatment:
    Total removal:               5.20  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.70  percent
    Total to Air:                3.41  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       3.82            16.2         1000       
   Water     48.5            360          1000       
   Soil      47.6            720          1000       
   Sediment  0.0907          3.24e+003    0          
     Persistence Time: 257 hr