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Table 2

Coefficients (A ij ) for the calculation of critical temperatures.

C1 C2 C3 iC4 nC4 iC5 nC5 nC6 nC7 nC8 nC9 nC10 nC11 N2 CO2 H2S
C1 1 0.4306 0.5681 0.3543 0.7575 1.0390 1.0688 0.9008 0.6710 2.7370 0.8322 1.7854 1.2145 1.1158 0.4491 0.3818
C2 1.7151 1 1.1426 1.4614 0.9240 1.8367 1.2249 1.6951 1.3011 −0.3532 0.9119 0.2496 0.7335 1.3052 1.4547 0.9249
C3 1.4638 0.8944 1 1.8228 0.9249 0.6913 1.1442 1.6184 1.9647 −0.5300 0.7312 0.9636 0.5793 0.7448 0.7884 1.5769
iC4 1.4721 0.4855 1.3797 1 0.2285 1.5959 1.4167 1.4005 2.1270 0.3423 0.9968 0.6577 0.6380 1.0896 2.1941 1.0669
nC4 1.2260 1.0441 0.9834 0.0391 1 0.7702 1.4128 1.2050 1.5494 1.0881 1.4731 0.5963 0.7008 0.7349 0.9721 1.2007
iC5 0.9716 0.9539 −0.1373 1.3075 0.5426 1 1.2408 1.0552 1.9836 0.5592 0.6594 0.7738 0.7156 1.2561 2.0569 1.4441
nC5 0.7472 0.7392 0.8217 0.4225 0.7405 0.7790 1 0.9844 1.3209 0.4808 0.9647 −0.0097 0.6563 −0.1844 1.0379 0.5860
nC6 0.8776 0.2504 0.8534 0.7091 0.5629 0.6905 1.1873 1 1.4087 0.8976 1.0224 0.3292 0.7044 0.5056 1.6971 0.8131
nC7 1.0417 0.6311 0.6454 1.4746 0.5793 1.4968 0.7707 1.0708 1 0.7991 1.2859 1.4693 0.9132 0.6179 0.9665 0.4441
nC8 0.8523 −0.0577 −0.0396 0.5012 1.3937 0.6538 0.6957 0.9485 0.9518 1 1.1702 1.4315 0.8705 0.8448 0.3035 0.5516
nC9 1.0746 0.8666 0.7225 1.0025 1.5967 0.6740 0.9116 0.9165 1.1707 1.1127 1 1.5099 0.8807 0.7958 0.8837 0.7751
nC10 0.9772 −0.2604 0.9748 0.5833 0.5419 0.7729 0.1900 0.5074 1.4552 1.4278 1.5721 1 0.8600 0.1621 0.9988 0.3408
nC11 1.2777 0.7045 0.5444 0.6399 0.7085 0.7354 0.6987 0.7260 0.8833 0.8652 0.8853 0.8613 1 0.7109 0.7830 0.6836
N2 0.8780 0.7022 1.0776 2.2750 1.9103 2.6103 1.6150 2.2448 2.3715 0.8762 0.7854 0.3865 0.7240 1 0.5477 0.6180
CO2 1.7567 0.4470 1.0368 1.2846 0.4925 1.2710 0.6319 1.4300 1.4506 0.4590 0.8251 0.9205 0.7753 1.5818 1 0.9341
H2S 1.8908 1.2912 0.1105 −0.1094 0.0408 0.4470 −0.0498 0.6858 1.0477 0.5670 0.7695 0.4661 0.6967 0.6871 1.0975 1

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