Dimethyldiselane

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) =  -0.68

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  155.99  (Adapted Stein & Brown method)
    Melting Pt (deg C):  3.28  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.03  (Mean VP of Antoine & Grain methods)
    BP  (exp database):  156 deg C
    VP  (exp database):  2.85E+00 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.902e+005
       log Kow used: -0.68 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  100 mg/L (25 deg C)
        Exper. Ref:  BEILSTEIN

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  76000 mg/L
    Wat Sol (Exper. database match) =  100.00
       Exper. Ref:  BEILSTEIN

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   Incomplete
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.941E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Can Not Estimate (can not calculate HenryLC)

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6580
   Biowin2 (Non-Linear Model)     :   0.5840
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7837  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5765  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1537
   Biowin6 (MITI Non-Linear Model):   0.0540
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6769
 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):  380 Pa (2.85 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.89E-009 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.85E-007 
       Mackay model           :  6.32E-007 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 132.1216 E-12 cm3/molecule-sec
      Half-Life =     0.081 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.971 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.58E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  43.79
      Log Koc:  1.641 

 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: -0.68 (estimated)

 Volatilization from Water:
    Henry LC:  3.94E-006 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River:      205.1  hours   (8.547 days)
    Half-Life from Model Lake :       2353  hours   (98.03 days)

 Removal In Wastewater Treatment:
    Total removal:               2.07  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.22  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.312           1.94         1000       
   Water     48.7            360          1000       
   Soil      50.9            720          1000       
   Sediment  0.0892          3.24e+003    0          
     Persistence Time: 327 hr