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CAS Number: 5208-58-2

SMILES : CC1=CCC2C1C3C2(CCC3C(C)C)C

CHEM : .alpha.-Bourbonene

MOL FOR: C15 H24

MOL WT : 204.36

------------------------------ 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) = 5.36

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

Boiling Pt (deg C): 242.08 (Adapted Stein & Brown method)

Melting Pt (deg C): 38.67 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.0478 (Modified Grain method)

VP (Pa, 25 deg C) : 6.37 (Modified Grain method)

Subcooled liquid VP: 0.0635 mm Hg (25 deg C, Mod-Grain method)

: 8.47 Pa (25 deg C, Mod-Grain method)

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

Water Solubility at 25 deg C (mg/L): 0.3163

log Kow used: 5.36 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 0.030229 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Neutral Organics

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

Bond Method : 1.95E-001 atm-m3/mole (1.97E+004 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: 4.064E-002 atm-m3/mole (4.117E+003 Pa-m3/mole)

VP: 0.0478 mm Hg (source: MPBPVP)

WS: 0.316 mg/L (source: WSKOWWIN)

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

Log Kow used: 5.36 (KowWin est)

Log Kaw used: 0.902 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 4.458

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.4663

Biowin2 (Non-Linear Model) : 0.1657

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.5354 (weeks-months)

Biowin4 (Primary Survey Model) : 3.3995 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.2379

Biowin6 (MITI Non-Linear Model): 0.0586

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): -0.2580

Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):

LOG BioHC Half-Life (days) : 2.3606

BioHC Half-Life (days) : 229.3878

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

Vapor pressure (liquid/subcooled): 8.47 Pa (0.0635 mm Hg)

Log Koa (Koawin est ): 4.458

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

Mackay model : 3.54E-007

Octanol/air (Koa) model: 7.05E-009

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 1.28E-005

Mackay model : 2.83E-005

Octanol/air (Koa) model: 5.64E-007

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 96.5983 E-12 cm3/molecule-sec

Half-Life = 0.111 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 1.329 Hrs

Ozone Reaction:

OVERALL Ozone Rate Constant = 43.000000 E-17 cm3/molecule-sec

Half-Life = 0.027 Days (at 7E11 mol/cm3)

Half-Life = 38.378 Min

Reaction With Nitrate Radicals May Be Important!

Fraction sorbed to airborne particulates (phi):

2.06E-005 (Junge-Pankow, Mackay avg)

5.64E-007 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 1.893E+004 L/kg (MCI method)

Log Koc: 4.277 (MCI method)

Koc : 4.483E+004 L/kg (Kow method)

Log Koc: 4.652 (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 = 3.207 (BCF = 1610 L/kg wet-wt)

Log Biotransformation Half-life (HL) = 1.1642 days (HL = 14.59 days)

Log BCF Arnot-Gobas method (upper trophic) = 3.615 (BCF = 4122)

Log BAF Arnot-Gobas method (upper trophic) = 4.031 (BAF = 1.075e+004)

log Kow used: 5.36 (estimated)

Volatilization from Water:

Henry LC: 0.195 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 1.463 hours

Half-Life from Model Lake : 135.8 hours (5.66 days)

Removal In Wastewater Treatment (recommended maximum 95%):

Total removal: 99.02 percent

Total biodegradation: 0.20 percent

Total sludge adsorption: 56.22 percent

Total to Air: 42.60 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.184 0.515 1000

Water 24.4 900 1000

Soil 49.1 1.8e+003 1000

Sediment 26.3 8.1e+003 0

Persistence Time: 319 hr

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