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CAS Number: 26978-65-4
SMILES : S(=O)(=O)(O)CCBr
CHEM : 2-BROMOETHANESULFONIC ACID
MOL FOR: C2 H5 Br1 O3 S1
MOL WT : 189.02
------------------------------ EPI SUMMARY (v4.10) --------------------------
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 v1.68 estimate) = -1.55
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 289.71 (Adapted Stein & Brown method)
Melting Pt (deg C): 73.59 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 9.04E-005 (Modified Grain method)
VP (Pa, 25 deg C) : 0.012 (Modified Grain method)
Subcooled liquid VP: 0.00026 mm Hg (25 deg C, Mod-Grain method)
: 0.0347 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -1.55 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1e+006 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics-acid
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.93E-009 atm-m3/mole (1.95E-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: 2.248E-011 atm-m3/mole (2.278E-006 Pa-m3/mole)
VP: 9.04E-005 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -1.55 (KowWin est)
Log Kaw used: -7.103 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 5.553
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7198
Biowin2 (Non-Linear Model) : 0.9379
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0030 (weeks )
Biowin4 (Primary Survey Model) : 3.7875 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.3454
Biowin6 (MITI Non-Linear Model): 0.0673
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 1.2471
Ready Biodegradability Prediction: NO
Hydrocarbon Biodegradation (BioHCwin v1.01):
Structure incompatible with current estimation method!
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 0.0347 Pa (0.00026 mm Hg)
Log Koa (Koawin est ): 5.553
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 8.65E-005
Octanol/air (Koa) model: 8.77E-008
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00312
Mackay model : 0.00688
Octanol/air (Koa) model: 7.02E-006
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.8913 E-12 cm3/molecule-sec
Half-Life = 12.000 Days (12-hr day; 1.5E6 OH/cm3)
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.005 (Junge-Pankow, Mackay avg)
7.02E-006 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1.568 L/kg (MCI method)
Log Koc: 0.195 (MCI method)
Koc : 1.169 L/kg (Kow method)
Log Koc: 0.068 (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 v3.01):
Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -2.1755 days (HL = 0.006676 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.8936)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.8936)
log Kow used: -1.55 (estimated)
Volatilization from Water:
Henry LC: 1.93E-009 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 4.171E+005 hours (1.738E+004 days)
Half-Life from Model Lake : 4.55E+006 hours (1.896E+005 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.75 percent
Total to Air: 0.00 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.0445 288 1000
Water 37.1 360 1000
Soil 62.8 720 1000
Sediment 0.0704 3.24e+003 0
Persistence Time: 590 hr