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CAS Num: 000533-31-3
SMILES : O(c(c(O1)cc(O)c2)c2)C1
CHEM : 1,3-Benzodioxol-5-ol
MOL FOR: C7 H6 O3
MOL WT : 138.12
------------------------------ 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) = 1.57
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 247.70 (Adapted Stein & Brown method)
Melting Pt (deg C): 53.60 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00689 (Modified Grain method)
VP (Pa, 25 deg C) : 0.919 (Modified Grain method)
Subcooled liquid VP: 0.0127 mm Hg (25 deg C, Mod-Grain method)
: 1.69 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1.465e+004
log Kow used: 1.57 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 5487.4 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Phenols
Benzodioxoles
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 6.52E-010 atm-m3/mole (6.60E-005 Pa-m3/mole)
Group Method: 8.68E-006 atm-m3/mole (8.79E-001 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: 8.547E-008 atm-m3/mole (8.660E-003 Pa-m3/mole)
VP: 0.00689 mm Hg (source: MPBPVP)
WS: 1.47E+004 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.57 (KowWin est)
Log Kaw used: -7.574 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 9.144
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0614
Biowin2 (Non-Linear Model) : 0.9984
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8341 (weeks )
Biowin4 (Primary Survey Model) : 3.8424 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.8003
Biowin6 (MITI Non-Linear Model): 0.9063
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8665
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): 1.69 Pa (0.0127 mm Hg)
Log Koa (Koawin est ): 9.144
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.77E-006
Octanol/air (Koa) model: 0.000342
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 6.4E-005
Mackay model : 0.000142
Octanol/air (Koa) model: 0.0266
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 202.3278 E-12 cm3/molecule-sec
Half-Life = 0.053 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.634 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
0.000103 (Junge-Pankow, Mackay avg)
0.0266 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 47.71 L/kg (MCI method)
Log Koc: 1.679 (MCI method)
Koc : 118.1 L/kg (Kow method)
Log Koc: 2.072 (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 = 0.706 (BCF = 5.081 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -1.0536 days (HL = 0.08839 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.578 (BCF = 3.785)
Log BAF Arnot-Gobas method (upper trophic) = 0.578 (BAF = 3.785)
log Kow used: 1.57 (estimated)
Volatilization from Water:
Henry LC: 8.68E-006 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 80.47 hours (3.353 days)
Half-Life from Model Lake : 976.4 hours (40.68 days)
Removal In Wastewater Treatment:
Total removal: 2.47 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.89 percent
Total to Air: 0.49 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.159 1.27 1000
Water 31.1 360 1000
Soil 68.6 720 1000
Sediment 0.118 3.24e+003 0
Persistence Time: 407 hr