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CAS Num: 000100-41-4

SMILES : c(cccc1)(c1)CC

CHEM : Benzene, ethyl-


MOL WT : 106.17

------------------------------ 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) = 3.03

Log Kow (Exper. database match) = 3.15

Exper. Ref: HANSCH,C ET AL. (1995)

Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):

Boiling Pt (deg C): 148.30 (Adapted Stein & Brown method)

Melting Pt (deg C): -46.94 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 7.59 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 1.01E+003 (Mean VP of Antoine & Grain methods)

MP (exp database): -94.9 deg C

BP (exp database): 136.1 deg C

VP (exp database): 9.60E+00 mm Hg (1.28E+003 Pa) at 25 deg C

Water Solubility Estimate from Log Kow (WSKOW v1.41):

Water Solubility at 25 deg C (mg/L): 228.6

log Kow used: 3.15 (expkow database)

no-melting pt equation used

Water Sol (Exper. database match) = 169 mg/L (25 deg C)

Exper. Ref: SANEMASA,I ET AL. (1982)

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 157.63 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Neutral Organics

Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:

Bond Method : 7.89E-003 atm-m3/mole (8.00E+002 Pa-m3/mole)

Group Method: 8.88E-003 atm-m3/mole (9.00E+002 Pa-m3/mole)

Exper Database: 7.88E-03 atm-m3/mole (7.98E+002 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: 4.638E-003 atm-m3/mole (4.700E+002 Pa-m3/mole)

VP: 7.59 mm Hg (source: MPBPVP)

WS: 229 mg/L (source: WSKOWWIN)

Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:

Log Kow used: 3.15 (exp database)

Log Kaw used: -0.492 (exp database)

Log Koa (KOAWIN v1.10 estimate): 3.642

Log Koa (experimental database): 3.740

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.8798

Biowin2 (Non-Linear Model) : 0.9797

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.9117 (weeks )

Biowin4 (Primary Survey Model) : 3.6309 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.3821

Biowin6 (MITI Non-Linear Model): 0.4891

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.3758

Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):

LOG BioHC Half-Life (days) : 0.6963

BioHC Half-Life (days) : 4.9689

Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:

Vapor pressure (liquid/subcooled): 1.28E+003 Pa (9.6 mm Hg)

Log Koa (Exp database): 3.740

Kp (particle/gas partition coef. (m3/ug)):

Mackay model : 2.34E-009

Octanol/air (Koa) model: 1.35E-009

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 8.47E-008

Mackay model : 1.87E-007

Octanol/air (Koa) model: 1.08E-007

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 5.9463 E-12 cm3/molecule-sec

Half-Life = 1.799 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 21.585 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

1.36E-007 (Junge-Pankow, Mackay avg)

1.08E-007 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 446.1 L/kg (MCI method)

Log Koc: 2.649 (MCI method)

Koc : 541.4 L/kg (Kow method)

Log Koc: 2.733 (Kow method)

Experimental Log Koc: 2.23 (database)

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 = 1.745 (BCF = 55.64 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.4536 days (HL = 0.3519 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.867 (BCF = 73.55)

Log BAF Arnot-Gobas method (upper trophic) = 1.867 (BAF = 73.56)

log Kow used: 3.15 (expkow database)

Volatilization from Water:

Henry LC: 0.00788 atm-m3/mole (Henry experimental database)

Half-Life from Model River: 1.128 hours

Half-Life from Model Lake : 98.7 hours (4.113 days)

Removal In Wastewater Treatment:

Total removal: 76.37 percent

Total biodegradation: 0.05 percent

Total sludge adsorption: 4.32 percent

Total to Air: 72.00 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 14.4 36.1 1000

Water 35.9 360 1000

Soil 49.1 720 1000

Sediment 0.643 3.24e+003 0

Persistence Time: 175 hr

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