Page 46 - Mechanical Engineers' Handbook (Volume 4)

Thermophysical Properties of Fluids 35

Table 20 (Continued)
Formula, Composition, Molecular n.b.p. Crit. P Crit. T
Number Synonym Weight ( C) (bar) ( C)
720 Ne (neon) 20.18 246.1 34.0 228.7
728 N 2 (nitrogen) 28.01 198.8 34.0 146.9
728a CO (carbon monoxide) 28.01 191.6 35.0 140.3
729 - (air) 28.97 194.3 37.6 140.6
732 O 2 (oxygen) 32.00 182.9 50.8 118.4
740 A (argon) 39.95 185.9 49.0 122.3
744 CO 2 (carbon dioxide) 44.01 78.4 73.7 31.1
744a N 2 O (nitrous oxide) 44.02 89.5 72.2 36.5
R-764 SO 2 (sulfur dioxide) 64.07 10.0 78.8 157.5
1113 C 2 ClF 3 116.47 27.9 40.5 106
1114 C 2 F 4 100.02 76.0 39.4 33.3
1120 CHClCCl 2 131.39 87.2 50.2 271.1
1130 CHClCHCl 96.95 47.8 54.8 243.3
1132a C 2 H 2 F 2 64.03 85.7 44.6 29.7
1141 C 2 H 3 F (vinyl fluoride) 46.04 72.2 52.4 54.7
1150 C 2 H 4 (ethylene) 28.05 103.7 51.1 9.3
1270 C 3 H 6 (propylene) 42.09 185 46.2 91.8
R-7146 SF 6 (sulfur hexafluoride) 146.05 63.8 37.6 45.6
a Refrigerant numbers in some cases are tentative and subject to revision. Compositions rounded to nearest weight percent.
Based on data supplied by M. O. McLinden, NIST, Boulder, CO, PCR Chemicals, Gainesville, FL, G. H. Thomson,
DIPPR, Bartlesville, OK, and literature sources.