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CAS Num: 010024-97-2

SMILES : N#N=O

CHEM : Nitrous oxide

MOL FOR: N2 O1

MOL WT : 44.01

------------------------------ EPI SUMMARY (v4.00) --------------------------

Physical Property Inputs:

Water Solubility (mg/L): ------

Vapor Pressure (mm Hg) : ------

Henry LC (atm-m3/mole) : ------

Log Kow (octanol-water): ------

Boiling Point (deg C) : ------

Melting Point (deg C) : ------

Log Octanol-Water Partition Coef (SRC):

*** WARNING: Inorganic Compound (Outside Estimation Domain)

Log Kow (KOWWIN v1.67 estimate) = 1.38

Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):

*** WARNING: Inorganic Compound (Outside Estimate Domain) ***

*** WARNING: Estimations NOT VALID ***

Boiling Pt (deg C): 624.45 (Adapted Stein & Brown method)

Melting Pt (deg C): 270.73 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 2.39E+004 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 3.18E+006 (Mean VP of Antoine & Grain methods)

MP (exp database): -90.81 deg C

BP (exp database): -88.46 deg C

VP (exp database): 4.29E+04 mm Hg (5.72E+006 Pa) at 25 deg C

Water Solubility Estimate from Log Kow (WSKOW v1.41):

*** WARNING: Inorganic Compound (Outside Estimation Domain)**

Water Solubility at 25 deg C (mg/L): 8738

log Kow used: 1.38 (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) = 27094 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Aliphatic Amines

Diazoniums

Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:

*** WARNING: Inorganic Compound (Outside Estimation Domain) **

*** WARNING: Estimation NOT VALID **

Bond Method : 1.56E-003 atm-m3/mole (1.58E+002 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: 5.037E-003 atm-m3/mole (5.103E+002 Pa-m3/mole)

VP: 2.39E+004 mm Hg (source: MPBPVP)

WS: 8.74E+003 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: 1.38 (KowWin est)

Log Kaw used: -1.195 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 2.575

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) : 0.7266

Biowin2 (Non-Linear Model) : 0.9156

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 3.1019 (weeks )

Biowin4 (Primary Survey Model) : 3.7842 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.5719

Biowin6 (MITI Non-Linear Model): 0.8191

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.3984

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): 5.72E+006 Pa (4.29E+004 mm Hg)

Log Koa (Koawin est ): 2.575

Kp (particle/gas partition coef. (m3/ug)):

Mackay model : 5.24E-013

Octanol/air (Koa) model: 9.23E-011

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 1.89E-011

Mackay model : 4.2E-011

Octanol/air (Koa) model: 7.38E-009

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

*** WARNING: Inorganic Compound (Outside Estimation Domain)***

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 0.0000 E-12 cm3/molecule-sec

Half-Life = -------

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

3.05E-011 (Junge-Pankow, Mackay avg)

7.38E-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 : 13.22 L/kg (MCI method)

Log Koc: 1.121 (MCI method)

Koc : 15.75 L/kg (Kow method)

Log Koc: 1.197 (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 = 0.577 (BCF = 3.775 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -1.2261 days (HL = 0.05942 days)

Log BCF Arnot-Gobas method (upper trophic) = 0.411 (BCF = 2.576)

Log BAF Arnot-Gobas method (upper trophic) = 0.411 (BAF = 2.576)

log Kow used: 1.38 (estimated)

Volatilization from Water:

Henry LC: 0.00156 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 0.9259 hours (55.56 min)

Half-Life from Model Lake : 65.73 hours (2.739 days)

Removal In Wastewater Treatment:

Total removal: 39.92 percent

Total biodegradation: 0.06 percent

Total sludge adsorption: 1.25 percent

Total to Air: 38.61 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 44 1e+005 1000

Water 39.3 360 1000

Soil 16.6 720 1000

Sediment 0.0938 3.24e+003 0

Persistence Time: 175 hr

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