This page contains the EPI System Summary only.
For complete control of this information -
Download the free EPI SuiteTM v4.0 program : here
also you can go back to the Datasheet
CAS Number: 7773-06-0
SMILES : NS(=O)(=O)O
CHEM : Sulfamic acid, monoammonium salt
MOL FOR: H3 N1 O3 S1
MOL WT : 97.09
------------------------------ 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):
*** WARNING: Inorganic Compound (Outside Estimation Domain)
Log Kow (KOWWIN v1.67 estimate) = -4.34
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
*** WARNING: Inorganic Compound (Outside Estimate Domain) ***
*** WARNING: Estimations NOT VALID ***
Boiling Pt (deg C): 602.67 (Adapted Stein & Brown method)
Melting Pt (deg C): 260.56 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 1.51E-015 (Modified Grain method)
VP (Pa, 25 deg C) : 2.01E-013 (Modified Grain method)
MP (exp database): 205 dec deg C
Subcooled liquid VP: 1.21E-013 mm Hg (25 deg C, Mod-Grain method)
: 1.61E-011 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
*** WARNING: Inorganic Compound (Outside Estimation Domain)**
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -4.34 (estimated)
no-melting pt equation used
Water Sol (Exper. database match) = 1.47e+005 mg/L (0 deg C)
Exper. Ref: SHIU,WY ET AL. (1990)
Water Sol Estimate from Fragments:
*** WARNING: Inorganic Compound (Outside Estimation Domain)***
*** WARNING: Wat Sol Estimation NOT Valid ***
Wat Sol (v1.01 est) = 1e+006 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Amides
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
*** WARNING: Inorganic Compound (Outside Estimation Domain) **
*** WARNING: Estimation NOT VALID **
Bond Method : 4.26E-009 atm-m3/mole (4.32E-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: 1.929E-022 atm-m3/mole (1.955E-017 Pa-m3/mole)
VP: 1.51E-015 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
*** WARNING: Inorganic Compound (Outside Estimation Domain)**
*** WARNING: Estimation NOT VALID ***
Log Kow used: -4.34 (KowWin est)
Log Kaw used: -6.759 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 2.419
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
*** WARNING: Inorganic Compound (Outside Estimation Domain)**
*** WARNING: Estimation NOT VALID ***
Biowin1 (Linear Model) : 0.7013
Biowin2 (Non-Linear Model) : 0.8362
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9846 (weeks )
Biowin4 (Primary Survey Model) : 3.7077 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4233
Biowin6 (MITI Non-Linear Model): 0.4311
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): 1.61E-011 Pa (1.21E-013 mm Hg)
Log Koa (Koawin est ): 2.419
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.86E+005
Octanol/air (Koa) model: 6.44E-011
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1
Mackay model : 1
Octanol/air (Koa) model: 5.15E-009
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
*** WARNING: Inorganic Compound (Outside Estimation Domain)***
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.1400 E-12 cm3/molecule-sec
Half-Life = 76.400 Days (12-hr day; 1.5E6 OH/cm3)
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1 (Junge-Pankow, Mackay avg)
5.15E-009 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
*** WARNING: Inorganic Coumpound (Outside Estimation Domain) **
*** WARNING: Estimation NOT VALID **
Koc : 2.21 L/kg (MCI method)
Log Koc: 0.344 (MCI method)
Koc : 0.04852 L/kg (Kow method)
Log Koc: -1.314 (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) = -3.1211 days (HL = 0.0007567 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: -4.34 (estimated)
Volatilization from Water:
Henry LC: 4.26E-009 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.354E+005 hours (5643 days)
Half-Life from Model Lake : 1.477E+006 hours (6.156E+004 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 1.54 1.83e+003 1000
Water 37.3 360 1000
Soil 61.1 720 1000
Sediment 0.0717 3.24e+003 0
Persistence Time: 544 hr