Gas
Molecular
Symbol
Boiling Point
(C)
Gas Density
at 27C, 1atm
(kg/m3)
Vol. of 1-kg Liquid at Normal Boiling Point (litre)
Vol. of 1-kg Liquid at 27 C, 1atm (m3)
Oxygen
O2
-183.0
1.300
0.876
0.769
Nitrogen
N2
-195.8
1.138
1.237
0.879
Argon
Ar
-185.9
1.623
0.717
0.616
Hydrogen
H2
-252.8
0.082
14.125
12.235
Carbon Dioxide
CO2
-78.5
1.799
0.979
0.556
Helium
He
-268.9
0.162
8.006
6.164

Nitrogen, Oxygen, and Argon are the main components of the air we breath which are produced and widely used in various fields of industry.

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

1
Name OXYGEN
2
Formula O2
3
CAS Number 7782-44-7
4
Molecular Weight 31.999
5
Melting point 54.36 K , 218.79 C , -361.82 F
6
Boiling point @ 101.325 kPa (1 atm) 90.17 K , -182.98 C , -297.36 F
7
Critical Temperature 154.58 K , -118.57 C , -181.43 F
8
Critical Pressure 50.43 bar , 49.77 atm , 731.43 psia
9
Critical Volume 73.4 cm3/mol
10
Critical Density 0.436 g/cm3
11
Critical Compressibility Factor 0.288
12
Acentric Factor 0.022
13
Density of Liquid @ 140 C 0.876 g/cm3
14
Coefficient of thermal Expansion of Liquid @ 25 C 0.00954 1/C
15
Surface Tension @ 218 C 22.5 dynes/cm
16
Density of Gas @ 1 atm and 70 F (21.1 C) 1.325 kg/m3 , 0.0827 lb/ft3
17
Relative Density of Gas @ 1 atm and 70 F (Air =1) 1.105
18
Enthalpy of Vaporization @ Boiling Point 210.63 kJ/kg , 90.57 BTU/lb
19
Enthalpy of Fusion @ Melting Point 13.88 kJ/kg , 5.97 BTU/lb
20
Heat Capacity of Gas @ 25 C , Constant Pressure (CP) 0.921 kJ/(kg K) , 0.22 BTU/(lb R)
21
Heat Capacity of Gas @ 25 C , Constant Volume (CV) 0.661 kJ/(kg K) , 0.158 BTU/(lb R)
22
Ratio of Heat Capacities for Gas , CP/CV 1.393
23
Heat capacity of Liquid @ -173 C 1.729 kJ/(kg K) , 0.413 BTU/(lb R)
24
Heat capacity of Solid @ -243 C 0.894 kJ/(kg K ) , 0.214 BTU/(lb R)
25
Entropy of Gas @ 25 C 205.04 J/(mol K)
26
Entropy of Formation of Gas @ 25 C 0 J/(mol K)
27
Enthalpy of Formation of Gas @ 25 C 0 kJ/mol
28
Gibbs Energy of Formation of Gas @ 25 C 0 kJ/mol
29
Solubility Parameter 8.182 (J/cm3)^0.5
30
Liquid Volume 28.02 cm3/mol
31
Solubility in Water @ 25 C 39.45 parts per million (wt)
32
Octanol-Water Partition Coefficient , log KOW
-
33
Henry's Law Constant for Compound in Water @ 25 C 43630.1 atm/mol fraction
34
Viscosity of Gas @ 25 C 201.74 micropoise
35
Viscosity of Liquid @ -130 C 0.071 centipoise
36
Thermal Conductivity of Gas @ 25 C 0.02571 watts/(m K)
37
Thermal Conductivity of Liquid @ -150 C 0.1206 watts/(m K)
38
Lower Explosion Limit in Air
-
39
Upper Explosion Limit in Air
-
40
Flash Point Temperature
-
41
Autoignition Temperature
-
42
Enthalpy of Combustion @ 25 C (77 F)
-
43
Threshold Limit Value (ACGIH)
-
44
Permissible Exposure Limit (OSHA)
-
45
Recommended Exposure Limit (NIOSH)
-

 

About Us | Products & Services | Mode of Supply | Training Program | Technical Data
Technology Update | Join Venture Partners | Contact Us | Home