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CAS Number: 5779-94-2
SMILES : c(cc(C)c1C(=O))c(c1)C
CHEM : BENZALDEHYDE, 2,5-DIMETHYL-
MOL FOR: C9 H10 O1
MOL WT : 134.18
------------------------------ 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) = 2.80
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP 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): 0.131 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 17.5 (Mean VP of Antoine & Grain methods)
BP (exp database): 220 deg C
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: 6.495E-005 atm-m3/mole (6.581E+000 Pa-m3/mole)
VP: 0.131 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): 16.3 Pa (0.122 mm Hg)
Log Koa (Koawin est ): 5.974
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.84E-007
Octanol/air (Koa) model: 2.31E-007
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 6.66E-006
Mackay model : 1.48E-005
Octanol/air (Koa) model: 1.85E-005
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 20.3150 E-12 cm3/molecule-sec
Half-Life = 0.527 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 6.318 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1.07E-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 1.71 12.6 1000
Water 33.3 360 1000
Soil 64.9 720 1000
Sediment 0.102 3.24e+003 0
Persistence Time: 369 hr