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CAS Number: 625-50-3
SMILES : O=C(NCC)C
CHEM : Acetamide, N-ethyl-
MOL FOR: C4 H9 N1 O1
MOL WT : 87.12
------------------------------ EPI SUMMARY (v4.00) --------------------------
Physical Property Inputs:
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Vapor Pressure (mm Hg) : ------
Water Solubility (mg/L): ------
Henry LC (atm-m3/mole) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.67 estimate) = -0.21
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 211.44 (Adapted Stein & Brown method)
Melting Pt (deg C): 31.67 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.225 (Modified Grain method)
VP (Pa, 25 deg C) : 30 (Modified Grain method)
BP (exp database): 205 deg C
Subcooled liquid VP: 0.258 mm Hg (25 deg C, Mod-Grain method)
: 34.4 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1.892e+005
log Kow used: -0.21 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 7.996e+005 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Amides
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 3.26E-008 atm-m3/mole (3.30E-003 Pa-m3/mole)
Group Method: Incomplete
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 1.363E-007 atm-m3/mole (1.381E-002 Pa-m3/mole)
VP: 0.225 mm Hg (source: MPBPVP)
WS: 1.89E+005 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -0.21 (KowWin est)
Log Kaw used: -5.875 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 5.665
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.9162
Biowin2 (Non-Linear Model) : 0.9886
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9524 (weeks )
Biowin4 (Primary Survey Model) : 3.9275 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.6298
Biowin6 (MITI Non-Linear Model): 0.7965
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.1351
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): 34.4 Pa (0.258 mm Hg)
Log Koa (Koawin est ): 5.665
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 8.72E-008
Octanol/air (Koa) model: 1.14E-007
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 3.15E-006
Mackay model : 6.98E-006
Octanol/air (Koa) model: 9.08E-006
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 9.5987 E-12 cm3/molecule-sec
Half-Life = 1.114 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 13.372 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
5.06E-006 (Junge-Pankow, Mackay avg)
9.08E-006 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 6.359 L/kg (MCI method)
Log Koc: 0.803 (MCI method)
Koc : 6.072 L/kg (Kow method)
Log Koc: 0.783 (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) = -1.9043 days (HL = 0.01246 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.039 (BCF = 0.9151)
Log BAF Arnot-Gobas method (upper trophic) = -0.039 (BAF = 0.9151)
log Kow used: -0.21 (estimated)
Volatilization from Water:
Henry LC: 3.26E-008 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.676E+004 hours (698.5 days)
Half-Life from Model Lake : 1.83E+005 hours (7623 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.76 percent
Total to Air: 0.00 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.563 26.7 1000
Water 34.7 360 1000
Soil 64.7 720 1000
Sediment 0.0728 3.24e+003 0
Persistence Time: 544 hr