ChemSpider 2D Image | Nitrous oxide | N2O

Nitrous oxide

  • Molecular FormulaN2O
  • Average mass44.013 Da
  • Monoisotopic mass44.001064 Da
  • ChemSpider ID923

More details:

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

10024-97-2 [RN]
Azane, nitrilo-, oxide [ACD/Index Name]
dinitrogen oxide
laughing gas
Nitrous oxide [JAN] [JP15] [Trade name] [USP] [Wiki]
Oxido nitroso [Spanish]
Oxodiazen-2-ium-1-id [German] [ACD/IUPAC Name]
Oxodiazen-2-ium-1-ide [ACD/IUPAC Name]
Oxodiazén-2-ium-1-ide [French] [ACD/IUPAC Name]
126386-65-0 [RN]

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

00583_FLUKA [DBID]
C00887 [DBID]
c0650 [DBID]
CHEBI:17045 [DBID]
D00102 [DBID]
FEMA No. 2779 [DBID]
LS-7622 [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      Colorless gas with a slightly sweet odor. [inhalation anesthetic] [Note: Shipped as a liquefied compressed gas.] NIOSH QX1350000
    • First-Aid:

      Eye: Frostbite Skin: Frostbite Breathing: Fresh air NIOSH QX1350000
    • Exposure Routes:

      inhalation, skin and/or eye contact (liquid) NIOSH QX1350000
    • Symptoms:

      Dyspnea (breathing difficulty); drowsiness, headache; asphyxia; reproductive effects; liquid: frostbite NIOSH QX1350000
    • Target Organs:

      respiratory system, central nervous system, reproductive system NIOSH QX1350000
    • Incompatibility:

      Aluminum, boron, hydrazine, lithium hydride, phosphine, sodium NIOSH QX1350000
    • Personal Protection:

      Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: No recommendation Change: No recommendation Provide: Frostbite wash NIOSH QX1350000
    • Exposure Limits:

      NIOSH REL*: TWA 25 ppm (46 mg/m 3 ) (TWA over the time exposed) [*Note: REL for exposure to waste anesthetic gas.] OSHA PEL : none NIOSH QX1350000
    • Chemical Class:

      A nitrogen oxide consisting of linear unsymmetrical molecules with formula N<smallsub>2</smallsub>O. While it is the most used gaseous anaesthetic in the world, its major commercial use, due to its so lubility under pressure in vegetable fats combined with its non-toxicity in low concentrations, is as an aerosol spray propellant and aerating agent for canisters of 'whipped' cream. ChEBI CHEBI:17045
  • Gas Chromatography
    • Retention Index (Normal Alkane):

      182 (Program type: Complex; Column... (show more) class: Standard non-polar; Column diameter: 0.53 mm; Column length: 60 m; Column type: Capillary; Description: 40C(6min)=>5C/min=>80C=>10C/min=>200C; CAS no: 10024972; Active phase: SPB-1; Carrier gas: He; Phase thickness: 5 um; Data type: Normal alkane RI; Authors: Flanagan, R.J.; Streete, P.J.; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 3
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.43
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 17 Å2
Surface Tension:
Molar Volume:

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.05

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  683.36  (Adapted Stein & Brown method)
    Melting Pt (deg C):  298.25  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.9E-019  (Modified Grain method)
    Subcooled liquid VP: 3.24E-016 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1e+006
       log Kow used: 0.05 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.03E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.718E-026 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.05  (KowWin est)
  Log Kaw used:  -4.081  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  4.131
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7261
   Biowin2 (Non-Linear Model)     :   0.9145
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0997  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7828  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5689
   Biowin6 (MITI Non-Linear Model):   0.8147
 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):  4.32E-014 Pa (3.24E-016 mm Hg)
  Log Koa (Koawin est  ): 4.131
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.94E+007 
       Octanol/air (Koa) model:  3.32E-009 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  2.66E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   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): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  14.3
      Log Koc:  1.155 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 0.05 (estimated)

 Volatilization from Water:
    Henry LC:  2.03E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      194.2  hours   (8.092 days)
    Half-Life from Model Lake :       2175  hours   (90.62 days)

 Removal In Wastewater Treatment:
    Total removal:               1.96  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  percent
    Total to Air:                0.12  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.88            1e+005       1000       
   Water     39.5            360          1000       
   Soil      58.6            720          1000       
   Sediment  0.0729          3.24e+003    0          
     Persistence Time: 525 hr


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