Oxygen | Nitrogen | Argon | Hydrogen | Carbon Dioxide | Helium

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Name NITROGEN
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Formula N2
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CAS Number 7727-37-9
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Molecular Weight 28.013
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Melting point 63.15 K , -210 C , -346 F
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Boiling point @ 101.325 kPa (1 atm) 77.35 K , -195.8 C , -320.44 F
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Critical Temperature 126.1 K , -147.05 C , -232.69 F
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Critical Pressure 33.94 bar , 33.5 atm , 492.26 psia
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Critical Volume 90.1 cm3/mol
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Critical Density 0.3109 g/cm3
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Critical Compressibility Factor 0.292
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Acentric Factor 0.040
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Density of Liquid @ -180 C 0.729 g/cm3
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Coefficient of Thermal Expansion of Liquid @ 25 C 0.00753 1/C
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Surface Tension @ -210 C 12.2 dynes/cm
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Density of Gas @ 1 atm and 70 F (21.1 C) 1.160 kg/m3 , 0.0724 lb/ft3
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Relative Density of Gas @ 1 atm and 70 F (Air =1) 0.967
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Enthalpy of Vaporization @ Boiling Point 202.76 kJ/kg , 87.19 BTU/lb
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Enthalpy of Fusion @ Melting Point 25.7 kJ/kg , 11.05 BTU/lb
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Heat Capacity of Gas @ 25 C , Constant Pressure (CP) 1.038 kJ/(kg K) , 0.248 BTU/(lb R)
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Heat Capacity of Gas @ 25 C , Constant Volume (CV) 0.741 kJ/(kg K) , 0.177 BTU/(lb R)
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Ratio of Heat Capacities for Gas , CP/CV 1.401
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Heat capacity of Liquid @ -183 C 2.13 kJ/(kg K) , 0.509 BTU/(lb R)
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Heat capacity of Solid @ -223 C 1.489 kJ/(kg K ) , 0.356 BTU/(lb R)
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Entropy of Gas @ 25 C 191.5 J/(mol K)
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Entropy of Formation of Gas @ 25 C 0 J/(mol K)
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Enthalpy of Formation of Gas @ 25 C 0 kJ/mol
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Gibbs Energy of Formation of Gas @ 25 C 0 kJ/mol
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Solubility Parameter 9.082 (J/cm3)^0.5
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Liquid Volume 34.677 cm3/mol
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Solubility in Water @ 25 C 17.28 parts per million (wt)
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Octanol-Water Partition Coefficient , log KOW
-
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Henry's Law Constant for Compound in Water @ 25 C 87143.1 atm/mol fraction
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Viscosity of Gas @ 25 C 175.44 micropoise
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Viscosity of Liquid @ -150 C 0.038 centipoise
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Thermal Conductivity of Gas @ 25 C 0.02475 watts/(m K)
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Thermal Conductivity of Liquid @ -150 C 0.0646 watts/(m K)
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Lower Explosion Limit in Air
-
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Upper Explosion Limit in Air
-
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Flash Point Temperature
-
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Autoignition Temperature
-
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Enthalpy of Combustion @ 25 C (77 F)
-
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Threshold Limit Value (ACGIH)
-
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Permissible Exposure Limit (OSHA)
-
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Recommended Exposure Limit (NIOSH)
-

 

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