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CAS Number: 149-44-0
SMILES : OCS(O([Na]))=O
CHEM : Methanesulfinic acid, hydroxy-, monosodium salt
MOL FOR: C1 H3 O3 S1 Na1
MOL WT : 118.08
------------------------------ 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) = -6.17
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 484.10 (Adapted Stein & Brown method)
Melting Pt (deg C): 205.17 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 7.06E-012 (Modified Grain method)
VP (Pa, 25 deg C) : 9.41E-010 (Modified Grain method)
Subcooled liquid VP: 5.7E-010 mm Hg (25 deg C, Mod-Grain method)
: 7.59E-008 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: -6.17 (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
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 3.67E-015 atm-m3/mole (3.72E-010 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: 1.097E-018 atm-m3/mole (1.111E-013 Pa-m3/mole)
VP: 7.06E-012 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: -6.17 (KowWin est)
Log Kaw used: -12.824 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 6.654
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8605
Biowin2 (Non-Linear Model) : 0.9406
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.1468 (weeks )
Biowin4 (Primary Survey Model) : 3.8385 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.6368
Biowin6 (MITI Non-Linear Model): 0.7658
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.9948
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): 7.6E-008 Pa (5.7E-010 mm Hg)
Log Koa (Koawin est ): 6.654
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 39.5
Octanol/air (Koa) model: 1.11E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.999
Mackay model : 1
Octanol/air (Koa) model: 8.85E-005
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 25.6382 E-12 cm3/molecule-sec
Half-Life = 0.417 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 5.006 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.999 (Junge-Pankow, Mackay avg)
8.85E-005 (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 : 0.001261 L/kg (Kow method)
Log Koc: -2.899 (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) = -3.0600 days (HL = 0.0008709 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.893)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.893)
log Kow used: -3.85 (estimated)
Volatilization from Water:
Henry LC: 3.67E-015 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.734E+011 hours (7.223E+009 days)
Half-Life from Model Lake : 1.891E+012 hours (7.88E+010 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 0.00018 10 1000
Water 37.7 360 1000
Soil 62.2 720 1000
Sediment 0.0706 3.24e+003 0
Persistence Time: 587 hr