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CAS Num: 015764-16-6

SMILES : c(cc(c1C)C(=O))c(c1)C

CHEM : Benzaldehyde, 2,4-dimethyl-

MOL FOR: C9 H10 O1

MOL WT : 134.18

------------------------------ 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) = 2.80

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

Boiling Pt (deg C): 220.88 (Adapted Stein & Brown method)

Melting Pt (deg C): 13.40 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.125 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 16.7 (Mean VP of Antoine & Grain methods)

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

Water Solubility at 25 deg C (mg/L): 356.1

log Kow used: 2.80 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 576.95 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Aldehydes (Mono)

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

Bond Method : 1.64E-005 atm-m3/mole (1.66E+000 Pa-m3/mole)

Group Method: 3.22E-005 atm-m3/mole (3.27E+000 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: 6.197E-005 atm-m3/mole (6.280E+000 Pa-m3/mole)

VP: 0.125 mm Hg (source: MPBPVP)

WS: 356 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.80 (KowWin est)

Log Kaw used: -3.174 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 5.974

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 1.0776

Biowin2 (Non-Linear Model) : 0.9999

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.7753 (weeks )

Biowin4 (Primary Survey Model) : 3.7137 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.8319

Biowin6 (MITI Non-Linear Model): 0.9146

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): -0.0712

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): 15.6 Pa (0.117 mm Hg)

Log Koa (Koawin est ): 5.974

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

Mackay model : 1.92E-007

Octanol/air (Koa) model: 2.31E-007

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 6.95E-006

Mackay model : 1.54E-005

Octanol/air (Koa) model: 1.85E-005

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 21.5260 E-12 cm3/molecule-sec

Half-Life = 0.497 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 5.963 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

1.12E-005 (Junge-Pankow, Mackay avg)

1.85E-005 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 29.12 L/kg (MCI method)

Log Koc: 1.464 (MCI method)

Koc : 175.6 L/kg (Kow method)

Log Koc: 2.245 (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 = 1.518 (BCF = 32.93 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.2194 days (HL = 0.6034 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.725 (BCF = 53.07)

Log BAF Arnot-Gobas method (upper trophic) = 1.725 (BAF = 53.07)

log Kow used: 2.80 (estimated)

Volatilization from Water:

Henry LC: 3.22E-005 atm-m3/mole (estimated by Group SAR Method)

Half-Life from Model River: 22.24 hours

Half-Life from Model Lake : 339.8 hours (14.16 days)

Removal In Wastewater Treatment:

Total removal: 5.95 percent

Total biodegradation: 0.11 percent

Total sludge adsorption: 4.15 percent

Total to Air: 1.68 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 1.63 11.9 1000

Water 33.4 360 1000

Soil 64.9 720 1000

Sediment 0.102 3.24e+003 0

Persistence Time: 369 hr

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