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CAS Number: 10255-67-1
SMILES : C(C(=O)C(=O)O([Na]))S
CHEM : sodium 2-oxo-3-sulfanylpropanoate
MOL FOR: C3 H3 O3 S1 Na1
MOL WT : 142.11
------------------------------ 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) = -5.11
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 466.84 (Adapted Stein & Brown method)
Melting Pt (deg C): 196.24 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 2.95E-009 (Modified Grain method)
VP (Pa, 25 deg C) : 3.94E-007 (Modified Grain method)
Subcooled liquid VP: 1.87E-007 mm Hg (25 deg C, Mod-Grain method)
: 2.5E-005 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -5.11 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1.8746e+005 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Thiols and Mercaptans
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 7.77E-011 atm-m3/mole (7.87E-006 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: 5.516E-016 atm-m3/mole (5.589E-011 Pa-m3/mole)
VP: 2.95E-009 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: -5.11 (KowWin est)
Log Kaw used: -8.498 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 3.388
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7630
Biowin2 (Non-Linear Model) : 0.8750
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.2983 (days-weeks )
Biowin4 (Primary Survey Model) : 4.0600 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5854
Biowin6 (MITI Non-Linear Model): 0.6507
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 1.0488
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): 2.49E-005 Pa (1.87E-007 mm Hg)
Log Koa (Koawin est ): 3.388
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.12
Octanol/air (Koa) model: 6E-010
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.813
Mackay model : 0.906
Octanol/air (Koa) model: 4.8E-008
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 37.9639 E-12 cm3/molecule-sec
Half-Life = 0.282 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 3.381 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.859 (Junge-Pankow, Mackay avg)
4.8E-008 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1 L/kg (MCI method)
Log Koc: 0.000 (MCI method)
Koc : 0.001259 L/kg (Kow method)
Log Koc: -2.900 (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 = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -2.2767 days (HL = 0.005288 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.894)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.894)
log Kow used: -1.30 (estimated)
Volatilization from Water:
Henry LC: 7.77E-011 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 8.983E+006 hours (3.743E+005 days)
Half-Life from Model Lake : 9.799E+007 hours (4.083E+006 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 0.019 6.76 1000
Water 33.6 208 1000
Soil 66.3 416 1000
Sediment 0.0594 1.87e+003 0
Persistence Time: 387 hr