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CAS Number: 16691-43-3
SMILES : N(C(=N)NN1)=C1S
CHEM : 3H-1,2,4-Triazole-3-thione, 5-amino-1,2-dihydro-
MOL FOR: C2 H4 N4 S1
MOL WT : 116.14
------------------------------ 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) = 0.31
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 357.47 (Adapted Stein & Brown method)
Melting Pt (deg C): 132.81 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 7.27E-006 (Modified Grain method)
VP (Pa, 25 deg C) : 0.000969 (Modified Grain method)
Subcooled liquid VP: 8.77E-005 mm Hg (25 deg C, Mod-Grain method)
: 0.0117 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 5.61e+004
log Kow used: 0.31 (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:
Hydrazines
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.62E-012 atm-m3/mole (1.64E-007 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: 1.980E-011 atm-m3/mole (2.007E-006 Pa-m3/mole)
VP: 7.27E-006 mm Hg (source: MPBPVP)
WS: 5.61E+004 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 0.31 (KowWin est)
Log Kaw used: -10.179 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 10.489
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.6923
Biowin2 (Non-Linear Model) : 0.7957
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9425 (weeks )
Biowin4 (Primary Survey Model) : 3.6802 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : -0.0064
Biowin6 (MITI Non-Linear Model): 0.0000
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8361
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): 0.0117 Pa (8.77E-005 mm Hg)
Log Koa (Koawin est ): 10.489
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.000257
Octanol/air (Koa) model: 0.00757
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00918
Mackay model : 0.0201
Octanol/air (Koa) model: 0.377
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 158.5000 E-12 cm3/molecule-sec
Half-Life = 0.067 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.810 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.0146 (Junge-Pankow, Mackay avg)
0.377 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 77.31 L/kg (MCI method)
Log Koc: 1.888 (MCI method)
Koc : 11.3 L/kg (Kow method)
Log Koc: 1.053 (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) = -1.7390 days (HL = 0.01824 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.007 (BCF = 0.9845)
Log BAF Arnot-Gobas method (upper trophic) = -0.007 (BAF = 0.9845)
log Kow used: 0.31 (estimated)
Volatilization from Water:
Henry LC: 1.62E-012 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 3.895E+008 hours (1.623E+007 days)
Half-Life from Model Lake : 4.249E+009 hours (1.77E+008 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.76 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 3.03e-005 1.62 1000
Water 20.2 360 1000
Soil 79.7 720 1000
Sediment 0.1 3.24e+003 0
Persistence Time: 736 hr