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CAS Number: 629-54-9
SMILES : O=C(N)CCCCCCCCCCCCCCC
CHEM : Hexadecanamide
MOL FOR: C16 H33 N1 O1
MOL WT : 255.45
------------------------------ EPI SUMMARY (v4.10) --------------------------
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 v1.68 estimate) = 5.71
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 387.85 (Adapted Stein & Brown method)
Melting Pt (deg C): 142.61 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 2.57E-006 (Modified Grain method)
VP (Pa, 25 deg C) : 0.000343 (Modified Grain method)
MP (exp database): 107 deg C
Subcooled liquid VP: 1.64E-005 mm Hg (25 deg C, Mod-Grain method)
: 0.00218 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.2914
log Kow used: 5.71 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.34671 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Amides
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 5.91E-007 atm-m3/mole (5.98E-002 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: 2.964E-006 atm-m3/mole (3.004E-001 Pa-m3/mole)
VP: 2.57E-006 mm Hg (source: MPBPVP)
WS: 0.291 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 5.71 (KowWin est)
Log Kaw used: -4.617 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 10.327
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.9445
Biowin2 (Non-Linear Model) : 0.9805
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8788 (weeks )
Biowin4 (Primary Survey Model) : 3.9537 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7710
Biowin6 (MITI Non-Linear Model): 0.8879
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.2348
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): 0.00219 Pa (1.64E-005 mm Hg)
Log Koa (Koawin est ): 10.327
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.00137
Octanol/air (Koa) model: 0.00521
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.0472
Mackay model : 0.0989
Octanol/air (Koa) model: 0.294
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 24.2016 E-12 cm3/molecule-sec
Half-Life = 0.442 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 5.303 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.0731 (Junge-Pankow, Mackay avg)
0.294 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1.393E+004 L/kg (MCI method)
Log Koc: 4.144 (MCI method)
Koc : 1.201E+004 L/kg (Kow method)
Log Koc: 4.080 (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 v3.01):
Log BCF from regression-based method = 2.062 (BCF = 115.4 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.4135 days (HL = 0.3859 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.171 (BCF = 148.3)
Log BAF Arnot-Gobas method (upper trophic) = 2.173 (BAF = 148.9)
log Kow used: 5.71 (estimated)
Volatilization from Water:
Henry LC: 5.91E-007 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1585 hours (66.04 days)
Half-Life from Model Lake : 1.742E+004 hours (726 days)
Removal In Wastewater Treatment:
Total removal: 90.42 percent
Total biodegradation: 0.76 percent
Total sludge adsorption: 89.66 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 0.785 10.6 1000
Water 21.2 360 1000
Soil 69.5 720 1000
Sediment 8.49 3.24e+003 0
Persistence Time: 526 hr