二氧化碳性质表
液相/气相平衡热力学数据

下表列出了液相CO2在不同温度下与气相平衡的热力学数据。焓、汽化热和熵是相对于0 °C、3483 kPa的数值。热量值至J/mol需要乘以44.095 g/mol。将密度换算为mol/L需要乘以22.678 cm3-mol/L-g。数据来自《CRC Handbook of Chemistry and Physics》（第44版），pp. 2560-2561。临界温度曲线（31.1 °C）与温度–30 °C来自《Lange's Handbook of Chemistry》（第10版），pp. 1463。
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二氧化碳液-气平衡热力学数据
| 温度 °C | Pvap 蒸汽压 kPa | Hliq 液体 焓 J/g | Hvap 蒸气 焓 J/g | ΔvapHo 汽化 热 J/g | ρvap 蒸气 密度 g/cm3 | ρliq 液体 密度 g/cm3 | Sliq 液体 熵 J/mol-°C | Svap 蒸气 熵 J/mol-°C |
| –56.6 | 518.3 |  |  |  |  | 1.179 |  |  |
| –56.0 | 531.8 |  |  |  |  | 1.177 |  |  |
| –54.0 | 579.1 |  |  |  |  | 1.169 |  |  |
| –52.0 | 629.6 |  |  |  |  | 1.162 |  |  |
| –50.0 | 683.4 |  |  |  |  | 1.155 |  |  |
| –48.0 | 740.6 |  |  |  |  | 1.147 |  |  |
| –46.0 | 801.3 |  |  |  |  | 1.139 |  |  |
| –44.0 | 865.6 |  |  |  |  | 1.131 |  |  |
| –42.0 | 933.8 |  |  |  |  | 1.124 |  |  |
| –40.0 | 1005.7 |  |  |  |  | 1.116 |  |  |
| –38.0 | 1081.9 |  |  |  |  | 1.108 |  |  |
| –36.0 | 1161.8 |  |  |  |  | 1.100 |  |  |
| –34.0 | 1246.2 |  |  |  |  | 1.092 |  |  |
| –32.0 | 1335.1 |  |  |  |  | 1.084 |  |  |
| -30.0 | 1428.6 |  |  |  |  | 1.075 |  |  |
| –28.89 | 1521 | –55.69 | 237.1 | 292.9 | 0.03846 | 1.0306 | –9.48 | 43.41 |
| –27.78 | 1575 | –53.76 | 237.3 | 291.0 | 0.03987 | 1.0276 | –9.13 | 43.21 |
| –26.67 | 1630 | –51.84 | 237.6 | 289.4 | 0.04133 | 1.0242 | –8.78 | 43.01 |
| –25.56 | 1686 | –49.87 | 237.6 | 287.5 | 0.04283 | 1.0209 | –8.45 | 42.78 |
| –24.44 | 1744 | –47.91 | 237.8 | 285.7 | 0.04440 | 1.0170 | –8.10 | 42.56 |
| –23.33 | 1804 | –45.94 | 237.8 | 283.6 | 0.04600 | 1.0132 | –7.75 | 42.36 |
| –22.22 | 1866 | –43.93 | 237.8 | 281.7 | 0.04767 | 1.0093 | –7.40 | 42.14 |
| –21.11 | 1928 | –41.92 | 237.8 | 279.6 | 0.04938 | 1.0053 | –7.05 | 41.94 |
| –20.00 | 1993 | –39.91 | 237.8 | 277.8 | 0.05116 | 1.0011 | –6.68 | 41.71 |
| –18.89 | 2059 | –37.86 | 237.8 | 275.7 | 0.05300 | 0.9968 | –6.31 | 41.49 |
| –17.78 | 2114 | –35.82 | 237.6 | 273.6 | 0.05489 | 0.9923 | –5.98 | 41.27 |
| –16.67 | 2197 | –33.73 | 237.6 | 271.2 | 0.05686 | 0.9875 | –5.61 | 41.05 |
| –15.56 | 2269 | –31.64 | 237.3 | 269.2 | 0.05888 | 0.9829 | –5.26 | 40.83 |
| –14.44 | 2343 | –29.54 | 237.3 | 266.9 | 0.06098 | 0.9782 | –4.91 | 40.61 |
| –13.33 | 2418 | –27.41 | 237.1 | 264.5 | 0.06314 | 0.9734 | –4.54 | 40.39 |
| –12.22 | 2495 | –25.27 | 236.9 | 262.2 | 0.06539 | 0.9665 | –4.17 | 40.15 |
| –11.11 | 2574 | –23.09 | 236.7 | 259.7 | 0.06771 | 0.9639 | –3.80 | 39.92 |
| –10.00 | 2654 | –20.90 | 236.4 | 257.3 | 0.07011 | 0.9592 | –3.43 | 39.68 |
| –8.89 | 2738 | –18.69 | 235.9 | 254.8 | 0.07259 | 0.9543 | –3.06 | 39.46 |
| –7.78 | 2823 | –16.45 | 235.7 | 252.2 | 0.07516 | 0.9494 | –2.69 | 39.22 |
| –6.67 | 2910 | –14.18 | 235.2 | 249.4 | 0.07783 | 0.9443 | –2.32 | 38.98 |
| –5.56 | 2999 | –11.90 | 234.8 | 246.6 | 0.08059 | 0.9393 | –1.94 | 38.74 |
| –4.44 | 3090 | –9.977 | 234.3 | 243.8 | 0.08347 | 0.9340 | –1.57 | 38.50 |
| –3.89 | 3136 | –8.410 | 234.1 | 242.4 | 0.08494 | 0.9313 | –1.37 | 38.37 |
| –2.78 | 3230 | –6.046 | 233.6 | 239.7 | 0.08797 | 0.9260 | –0.98 | 38.12 |
| –1.67 | 3327 | –3.648 | 232.9 | 236.6 | 0.09111 | 0.9206 | –0.59 | 37.88 |
| –0.56 | 3425 | –1.222 | 232.4 | 233.6 | 0.09438 | 0.9150 | –0.20 | 37.62 |
| 0.56 | 3526 | 1.234 | 231.7 | 230.5 | 0.09776 | 0.9094 | 0.20 | 37.36 |
| 1.67 | 3629 | 3.728 | 231.0 | 227.3 | 0.1013 | 0.9036 | 0.61 | 37.08 |
| 2.78 | 3735 | 6.268 | 230.4 | 224.0 | 0.1050 | 0.8975 | 1.01 | 36.83 |
| 3.89 | 3843 | 8.445 | 229.4 | 220.5 | 0.1088 | 0.8914 | 1.42 | 36.55 |
| 5.00 | 3953 | 11.46 | 228.5 | 217.0 | 0.1128 | 0.8850 | 1.83 | 36.25 |
| 6.11 | 4067 | 14.13 | 227.6 | 213.4 | 0.1169 | 0.8784 | 2.25 | 35.98 |
| 7.22 | 4182 | 16.85 | 226.5 | 209.7 | 0.1213 | 0.8716 | 2.69 | 35.68 |
| 8.33 | 4300 | 19.63 | 225.4 | 205.8 | 0.1258 | 0.8645 | 3.12 | 35.39 |
| 9.44 | 4420 | 22.46 | 224.3 | 201.8 | 0.1306 | 0.8571 | 3.56 | 35.07 |
| 10.56 | 4544 | 25.36 | 223.1 | 197.7 | 0.1355 | 0.8496 | 4.02 | 34.76 |
| 11.67 | 4670 | 28.33 | 221.8 | 193.4 | 0.1408 | 0.8418 | 4.48 | 34.45 |
| 12.78 | 4798 | 31.35 | 220.3 | 188.9 | 0.1463 | 0.8338 | 4.94 | 34.11 |
| 13.89 | 4929 | 34.49 | 218.8 | 184.3 | 0.1521 | 0.8254 | 5.42 | 33.76 |
| 15.00 | 5063 | 37.30 | 217.2 | 179.5 | 0.1583 | 0.8168 | 5.92 | 33.41 |
| 16.11 | 5200 | 41.03 | 215.1 | 174.4 | 0.1648 | 0.8076 | 6.42 | 33.02 |
| 17.22 | 5340 | 44.48 | 213.6 | 169.1 | 0.1717 | 0.7977 | 6.96 | 32.66 |
| 18.33 | 5482 | 48.03 | 211.5 | 163.5 | 0.1791 | 0.7871 | 7.49 | 32.25 |
| 19.44 | 5628 | 51.71 | 209.4 | 157.6 | 0.1869 | 0.7759 | 8.04 | 31.83 |
| 20.56 | 5776 | 55.61 | 207.0 | 151.4 | 0.1956 | 0.7639 | 8.63 | 31.38 |
| 21.67 | 5928 | 59.66 | 204.3 | 144.7 | 0.2054 | 0.7508 | 9.24 | 30.90 |
| 22.78 | 6083 | 63.97 | 201.5 | 137.5 | 0.2151 | 0.7367 | 9.89 | 30.39 |
| 23.89 | 6240 | 68.58 | 198.4 | 129.8 | 0.2263 | 0.7216 | 10.57 | 29.85 |
| 25.00 | 6401 | 73.51 | 194.8 | 121.3 | 0.2387 | 0.7058 | 11.31 | 29.24 |
| 26.11 | 6565 | 78.91 | 190.7 | 111.8 | 0.2532 | 0.6894 | 12.10 | 28.60 |
| 27.22 | 6733 | 84.94 | 186.0 | 101.1 | 0.2707 | 0.6720 | 12.99 | 27.84 |
| 28.33 | 6902 | 91.88 | 180.4 | 88.49 | 0.2923 | 0.6507 | 14.00 | 26.95 |
| 29.44 | 7081 | 100.4 | 173.1 | 72.72 | 0.3204 | 0.6209 | 15.24 | 25.85 |
| 30.00 | 7164 | 105.6 | 168.4 | 62.76 | 0.3378 | 0.5992 | 16.01 | 25.15 |
| 30.56 | 7253 | 112.3 | 162.3 | 50.04 | 0.3581 | 0.5661 | 16.99 | 24.24 |
| 31.1 | 7391 |  |  | 0.00 | 0.4641 | 0.4641 |  |  |
| 温度 °C | Pvap 蒸汽压 kPa | Hliq 液体 焓 J/g | Hvap 蒸气 焓 J/g | ΔvapHo 汽化 热 J/g | ρvap 蒸气 密度 g/cm3 | ρliq 液体 密度 g/cm3 | Sliq 液体 熵 J/mol-°C | Svap 蒸气 熵 J/mol-°C |