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CAS Number: 7697-37-2
SMILES : O(N(=O)=O)
CHEM : Nitric acid
MOL FOR: N1 O3
MOL WT : 62.00
------------------------------ 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):
*** WARNING: Inorganic Compound (Outside Estimation Domain)
Log Kow (KOWWIN v1.68 estimate) = 0.21
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
*** WARNING: Inorganic Compound (Outside Estimate Domain) ***
*** WARNING: Estimations NOT VALID ***
Boiling Pt (deg C): 492.56 (Adapted Stein & Brown method)
Melting Pt (deg C): 189.14 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 8.08E-010 (Modified Grain method)
VP (Pa, 25 deg C) : 1.08E-007 (Modified Grain method)
Subcooled liquid VP: 4.23E-008 mm Hg (25 deg C, Mod-Grain method)
: 5.64E-006 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
*** WARNING: Inorganic Compound (Outside Estimation Domain)**
Water Solubility at 25 deg C (mg/L): 9.09e+004
log Kow used: 0.21 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
*** WARNING: Inorganic Compound (Outside Estimation Domain)***
*** WARNING: Wat Sol Estimation NOT Valid ***
Wat Sol (v1.01 est) = 57149 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
*** WARNING: Inorganic Compound (Outside Estimation Domain) **
*** WARNING: Estimation NOT VALID **
Bond Method : 2.45E-002 atm-m3/mole (2.48E+003 Pa-m3/mole)
Group Method: 2.45E-002 atm-m3/mole (2.48E+003 Pa-m3/mole)
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 7.251E-016 atm-m3/mole (7.348E-011 Pa-m3/mole)
VP: 8.08E-010 mm Hg (source: MPBPVP)
WS: 9.09E+004 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: 0.21 (KowWin est)
Log Kaw used: 0.001 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 0.209
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) : 0.7180
Biowin2 (Non-Linear Model) : 0.8936
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0621 (weeks )
Biowin4 (Primary Survey Model) : 3.7583 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5277
Biowin6 (MITI Non-Linear Model): 0.6760
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8361
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): 5.64E-006 Pa (4.23E-008 mm Hg)
Log Koa (Koawin est ): 0.209
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.532
Octanol/air (Koa) model: 3.97E-013
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.951
Mackay model : 0.977
Octanol/air (Koa) model: 3.18E-011
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
*** WARNING: Inorganic Compound (Outside Estimation Domain)***
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.3600 E-12 cm3/molecule-sec
Half-Life = 29.711 Days (12-hr day; 1.5E6 OH/cm3)
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.964 (Junge-Pankow, Mackay avg)
3.18E-011 (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 : 13.22 L/kg (MCI method)
Log Koc: 1.121 (MCI method)
Koc : 1.52 L/kg (Kow method)
Log Koc: 0.182 (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) = -1.6318 days (HL = 0.02334 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.011 (BCF = 0.9759)
Log BAF Arnot-Gobas method (upper trophic) = -0.011 (BAF = 0.9759)
log Kow used: 0.21 (estimated)
Volatilization from Water:
Henry LC: 0.0245 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 0.8223 hours (49.34 min)
Half-Life from Model Lake : 74.99 hours (3.125 days)
Removal In Wastewater Treatment:
Total removal: 90.51 percent
Total biodegradation: 0.02 percent
Total sludge adsorption: 0.40 percent
Total to Air: 90.09 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 36.1 713 1000
Water 54.7 360 1000
Soil 9.13 720 1000
Sediment 0.13 3.24e+003 0
Persistence Time: 177 hr