2 0 2024 chi 4 archivedDocument Original National Institute of Standards and Technology Chirico, Robert D. 2024 2024-04-18 2-Ethylbiphenyl: Experimental and Derived Thermodynamic Properties Measurements leading to the calculation of thermodynamic properties in the ideal-gas state over a range of temperatures for 2-ethylbiphenyl (Chemical Abstracts registry number [1812-51-7]) are reported. density vapor pressure enthalpy of formation heat capacity thermodynamic functions 10.18434/mds2-3221 mds2-3221 1 InChI=1S/CO2/c2-1-3 CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide R-744 CO2 2 InChI=1S/H2O/h1H2 XLYOFNOQVPJJNP-UHFFFAOYSA-N water H2O 3 InChI=1S/O2/c1-2 MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen O2 4 InChI=1S/C14H14/c1-2-12-8-6-7-11-14(12)13-9-4-3-5-10-13/h3-11H,2H2,1H3 DLMYHUARHITGIJ-UHFFFAOYSA-N 2-ethyl-1,1'-biphenyl 1,1'-biphenyl, 2-ethyl- 1-ethyl-2-phenylbenzene 2-ethylbiphenyl biphenyl, 2-ethyl- o-ethylbiphenyl C14H14 1 Synthesized by others 1 Fractional distillation 2 99.84 4 Fraction melting in an adiabatic calorimeter 3 99.985 5 CO2 yield in combustion products 1 4 1 Principal objective of the work EP EP 4/12/2024 1 Triple point temperature, K Adiabatic calorimetry Crystal Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Crystal Liquid Gas 1 267.078 6 1 0.02 2 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar enthalpy of transition or fusion, kJ/mol Adiabatic calorimetry Crystal Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Crystal Liquid Gas 1 17.2 4 1 0.04 3 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar heat capacity at saturation pressure, J/K/mol Vacuum adiabatic calorimetry Crystal Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Crystal Gas 1 Temperature, K Crystal 1 4.923 4 1 0.32 2 1 0.008 1 6.007 4 1 0.57 2 1 0.008 1 6.943 4 1 0.881 3 1 0.0083 1 7.942 4 1 1.36 3 1 0.017 1 9.013 4 1 2.02 3 1 0.025 1 10.135 5 1 2.94 3 1 0.033 1 11.301 5 1 4.06 3 1 0.042 1 12.552 5 1 5.37 3 1 0.05 1 13.865 5 1 7.03 3 1 0.058 1 15.267 5 1 8.913 4 1 0.067 1 16.844 5 1 11.24 4 1 0.083 1 18.611 5 1 13.91 4 1 0.091 1 20.601 5 1 17.01 4 1 0.1 1 22.847 5 1 20.6 4 1 0.1 1 25.367 5 1 24.69 4 1 0.091 1 28.198 5 1 29.16 4 1 0.083 1 31.521 5 1 34.17 4 1 0.067 1 35.148 5 1 39.41 4 1 0.075 1 38.953 5 1 44.55 4 1 0.091 1 43.236 5 1 49.86 4 1 0.1 1 47.94 5 1 55.17 4 1 0.11 1 53.092 5 1 60.6 4 1 0.12 1 54.11 5 1 61.75 4 1 0.12 1 58.656 5 1 66.12 4 1 0.13 1 59.809 5 1 67.06 4 1 0.13 1 60.149 5 1 67.41 4 1 0.13 1 65.858 5 1 72.54 4 1 0.14 1 71.602 5 1 77.24 4 1 0.16 1 72.506 5 1 77.98 4 1 0.16 1 77.287 5 1 81.76 4 1 0.17 1 84.744 5 1 87.343 5 1 0.175 1 92.962 5 1 93.189 5 1 0.183 1 101.944 6 1 99.308 5 1 0.2 1 111.072 6 1 105.49 5 1 0.21 1 120.379 6 1 111.58 5 1 0.22 1 130.312 6 1 118.14 5 1 0.23 1 140.424 6 1 124.82 5 1 0.25 1 150.69 6 1 131.6 5 1 0.27 1 161.073 6 1 138.7 5 1 0.27 1 171.425 6 1 145.91 5 1 0.29 1 181.723 6 1 153.24 5 1 0.31 1 191.978 6 1 160.74 5 1 0.32 1 202.199 6 1 168.33 5 1 0.33 1 212.392 6 1 176 5 1 0.35 1 222.563 6 1 183.85 5 1 0.37 1 232.709 6 1 191.93 5 1 0.38 1 242.836 6 1 199.81 5 1 0.4 1 252.961 6 1 207.76 5 1 0.42 4 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar heat capacity at saturation pressure, J/K/mol Vacuum adiabatic calorimetry Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 274.624 6 1 291.19 5 1 0.58 1 276.424 6 1 292.1 5 1 0.58 1 276.675 6 1 292.22 5 1 0.58 1 285.487 6 1 296.54 5 1 0.59 1 285.746 6 1 296.66 5 1 0.59 1 294.83 6 1 301.2 5 1 0.6 1 304.024 6 1 306.06 5 1 0.62 1 304.129 6 1 306.06 5 1 0.62 1 315.256 6 1 311.88 5 1 0.62 1 327.365 6 1 318.34 5 1 0.64 1 339.323 6 1 324.87 5 1 0.65 1 351.622 6 1 331.61 5 1 0.67 1 364.253 6 1 338.61 5 1 0.67 1 376.735 6 1 345.54 5 1 0.69 1 389.522 6 1 352.6 5 1 0.71 1 403.084 6 1 360.12 5 1 0.72 1 416.479 6 1 367.5 5 1 0.73 1 429.253 6 1 374.45 5 1 0.75 1 440.366 6 1 380.54 5 1 0.76 5 4 1 Principal objective of the work EP EP 4/12/2024 1 Vapor or sublimation pressure, kPa Inclined piston gauge Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 329.986 6 1 0.0227 3 1 0.0004 1 339.983 6 1 0.0459 3 1 0.0004 1 349.982 6 1 0.0883 3 1 0.0004 1 359.976 6 1 0.1626 4 1 0.0004 1 369.978 6 1 0.2874 4 1 0.0004 1 379.974 6 1 0.49 4 1 0.0006 1 389.969 6 1 0.8068 4 1 0.0006 1 399.968 6 1 1.2882 5 1 0.0008 1 409.966 6 1 2.001 5 1 0.001 1 419.967 6 1 3.0274 5 1 0.0014 6 4 1 Principal objective of the work EP EP 4/12/2024 1 Vapor or sublimation pressure, kPa Twin ebulliometer Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 409.95 6 1 2.0002 5 1 0.0006 1 416.829 6 1 2.6663 5 1 0.0006 1 427.042 6 1 4.0003 5 1 0.001 1 434.677 6 1 5.3335 5 1 0.0012 1 446.041 6 1 7.9994 5 1 0.002 1 454.574 6 1 10.6664 6 1 0.002 1 461.482 6 1 13.3321 6 1 0.003 1 468.66 6 1 16.6647 6 1 0.003 1 474.626 6 1 19.9321 6 1 0.004 1 482.485 6 1 25.0208 6 1 0.004 1 482.487 6 1 25.02 6 1 0.005 1 490.407 6 1 31.1737 6 1 0.006 1 498.382 6 1 38.5612 6 1 0.008 1 506.414 6 1 47.3708 6 1 0.009 1 514.503 6 1 57.8119 6 1 0.011 1 522.65 6 1 70.1139 6 1 0.012 1 530.856 6 1 84.5255 6 1 0.015 1 539.118 6 1 101.3154 7 1 0.017 1 547.439 6 1 120.7777 7 1 0.02 1 555.821 6 1 143.2341 7 1 0.02 1 564.251 6 1 168.9997 7 1 0.03 1 572.742 6 1 198.4643 7 1 0.03 1 581.287 6 1 231.9881 7 1 0.03 1 589.884 6 1 269.9812 7 1 0.04 7 4 1 Principal objective of the work EP EP 4/12/2024 1 Mass density, kg/m3 Vibrating tube method Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 323.14 5 1 972.3 4 1 1.9 1 348.13 5 1 952.4 4 1 1.9 1 373.12 5 1 931.7 4 1 1.9 1 398.12 5 1 911.3 4 1 1.8 1 423.12 5 1 890.5 4 1 1.8 1 448.11 5 1 869.5 4 1 1.7 1 473.11 5 1 847.9 4 1 1.7 1 498.11 5 1 825.5 4 1 1.7 1 523.11 5 1 802.1 4 1 1.6 8 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar heat capacity at saturation pressure, J/K/mol Small sample (50 mg) DSC Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 440 4 1 380.3 4 1 0.75 1 460 4 1 389.8 4 1 1.3 1 480 4 1 399.7 4 1 1.9 1 500 4 1 409.3 4 1 2.5 1 520 4 1 418.7 4 1 3.2 1 540 4 1 427.9 4 1 3.8 1 560 4 1 436.8 4 1 4.5 1 580 4 1 445.3 4 1 5.2 1 600 4 1 453.7 4 1 5.9 1 620 4 1 462 4 1 6.7 1 640 4 1 470.3 4 1 7.5 1 660 4 1 479.2 4 1 8.2 1 680 4 1 489.2 4 1 9.1 1 700 4 1 502.4 4 1 10.1 9 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar heat capacity at saturation pressure, J/K/mol Vacuum adiabatic calorimetry Crystal Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Crystal Gas 1 Temperature, K Crystal 1 10 4 1 2.82 3 1 0.025 1 20 4 1 16.06 4 1 0.1 1 30 4 1 31.9 4 1 0.067 1 40 4 1 45.9 4 1 0.091 1 50 4 1 57.38 4 1 0.12 1 60 4 1 67.36 4 1 0.13 1 70 4 1 75.97 4 1 0.15 1 80 4 1 83.835 5 1 0.166 1 90 4 1 91.11 5 1 0.183 1 100 5 1 98.003 5 1 0.2 1 120 5 1 111.35 5 1 0.22 1 140 5 1 124.53 5 1 0.25 1 160 5 1 137.95 5 1 0.27 1 180 5 1 152 5 1 0.31 1 200 5 1 166.69 5 1 0.33 1 220 5 1 181.86 5 1 0.37 1 240 5 1 197.62 5 1 0.4 1 260 5 1 213.26 5 1 0.42 1 267.078 6 1 218.67 5 1 0.44 10 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar heat capacity at saturation pressure, J/K/mol Vacuum adiabatic calorimetry Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 267.078 6 1 287.56 5 1 0.57 1 280 5 1 293.87 5 1 0.59 1 298.15 5 1 302.93 5 1 0.61 1 300 5 1 303.89 5 1 0.61 1 320 5 1 314.4 5 1 0.63 1 340 5 1 325.24 5 1 0.65 1 360 5 1 336.25 5 1 0.67 1 380 5 1 347.35 5 1 0.7 1 400 5 1 358.42 5 1 0.72 1 420 5 1 369.42 5 1 0.74 1 440 5 1 380.29 5 1 0.76 11 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar entropy, J/K/mol Vacuum adiabatic calorimetry Crystal Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Crystal Gas 1 Temperature, K Crystal 1 10 4 1 0.898 3 1 0.0083 1 20 4 1 6.5 3 1 0.042 1 30 4 1 16.04 4 1 0.033 1 40 4 1 27.19 4 1 0.058 1 50 4 1 38.7 4 1 0.075 1 60 4 1 50.07 4 1 0.1 1 70 4 1 61.11 4 1 0.12 1 80 4 1 71.78 4 1 0.14 1 90 4 1 82.08 4 1 0.17 1 100 5 1 92.033 5 1 0.183 1 120 5 1 111.1 5 1 0.22 1 140 5 1 129.25 5 1 0.26 1 160 5 1 146.75 5 1 0.29 1 180 5 1 163.8 5 1 0.32 1 200 5 1 180.57 5 1 0.36 1 220 5 1 197.16 5 1 0.39 1 240 5 1 213.67 5 1 0.42 1 260 5 1 230.1 5 1 0.46 1 267.078 6 1 235.9 5 1 0.47 12 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar entropy, J/K/mol Vacuum adiabatic calorimetry Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 267.078 6 1 300.3 5 1 0.6 1 280 5 1 314.04 5 1 0.63 1 298.15 5 1 332.77 5 1 0.67 1 300 5 1 334.65 5 1 0.67 1 320 5 1 354.6 5 1 0.71 1 340 5 1 373.98 5 1 0.75 1 360 5 1 392.88 5 1 0.79 1 380 5 1 411.36 5 1 0.82 1 400 5 1 429.46 5 1 0.86 1 420 5 1 447.21 5 1 0.9 1 440 5 1 464.65 5 1 0.93 13 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar entropy, J/K/mol Small sample (50 mg) DSC Liquid Direct value, X 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 460 5 1 481.7 4 1 1 1 480 5 1 498.5 4 1 1.1 1 500 5 1 515.1 4 1 1.2 1 520 5 1 531.3 4 1 1.2 1 540 5 1 547.3 4 1 1.3 1 560 5 1 563 4 1 1.4 1 580 5 1 578.5 4 1 1.5 1 600 5 1 593.7 4 1 1.6 1 620 5 1 608.7 4 1 1.7 1 640 5 1 623.5 4 1 1.7 1 660 5 1 638.1 4 1 1.8 1 680 5 1 652.6 4 1 1.9 1 700 5 1 667 4 1 2 14 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol Vacuum adiabatic calorimetry Crystal Difference with the reference state, X-X(REF) Reference phase with the same composition at fixed temperature and pressure 0 1 0 1 Crystal 1 Data file compiler Propagation of evaluated standard uncertainties 95 Crystal Gas 1 Temperature, K Crystal 1 10 4 1 0.68 2 1 0.008 1 20 4 1 4.76 3 1 0.025 1 30 4 1 11.19 4 1 0.025 1 40 4 1 18.17 4 1 0.033 1 50 4 1 24.9 4 1 0.05 1 60 4 1 31.16 4 1 0.058 1 70 4 1 36.96 4 1 0.075 1 80 4 1 42.34 4 1 0.083 1 90 4 1 47.35 4 1 0.091 1 100 5 1 52.07 4 1 0.11 1 120 5 1 60.85 4 1 0.12 1 140 5 1 69.01 4 1 0.14 1 160 5 1 76.78 4 1 0.15 1 180 5 1 84.35 5 1 0.166 1 200 5 1 91.85 5 1 0.183 1 220 5 1 99.333 5 1 0.2 1 240 5 1 106.87 5 1 0.22 1 260 5 1 114.46 5 1 0.23 1 267.078 6 1 117.14 5 1 0.23 15 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol Vacuum adiabatic calorimetry Liquid Difference with the reference state, X-X(REF) Reference phase with the same composition at fixed temperature and pressure 0 1 0 1 Crystal 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 267.078 6 1 181.55 5 1 0.37 1 280 5 1 186.58 5 1 0.37 1 298.15 5 1 193.39 5 1 0.39 1 300 5 1 194.07 5 1 0.39 1 320 5 1 201.26 5 1 0.4 1 340 5 1 208.23 5 1 0.42 1 360 5 1 215.04 5 1 0.43 1 380 5 1 221.71 5 1 0.44 1 400 5 1 228.27 5 1 0.46 1 420 5 1 234.73 5 1 0.47 1 440 5 1 241.09 5 1 0.48 16 4 1 Principal objective of the work EP EP 4/12/2024 1 Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol Small sample (50 mg) DSC Liquid Difference with the reference state, X-X(REF) Reference phase with the same composition at fixed temperature and pressure 0 1 0 1 Crystal 1 Data file compiler Propagation of evaluated standard uncertainties 95 Liquid Gas 1 Temperature, K Liquid 1 460 5 1 247.4 4 1 0.5 1 480 5 1 253.5 4 1 0.58 1 500 5 1 259.6 4 1 0.58 1 520 5 1 265.5 4 1 0.58 1 540 5 1 271.3 4 1 0.67 1 560 5 1 277 4 1 0.67 1 580 5 1 282.7 4 1 0.75 1 600 5 1 288.3 4 1 0.75 1 620 5 1 293.7 4 1 0.83 1 640 5 1 299.2 4 1 0.83 1 660 5 1 304.5 4 1 0.83 1 680 5 1 309.7 4 1 0.91 1 700 5 1 315 4 1 0.91 1 4 1 -1 Liquid 1 14 Ideal gas 2 7 Liquid 3 -17.5 Ideal gas Principal objective of the work EP EP 4/12/2024 Combustion with oxygen 1 Specific internal energy of reaction at constant volume, J/g Static bomb calorimetry 298.15 5 101.325 6 1 Data file compiler Propagation of evaluated standard uncertainties 95 1 -41498 6 1 7.5