Industrial / Energy Fluids

XCELTHERM® TPL

Direct replacement for Hydrogenated Terphenyl based heat transfer fluids, chemically equivalent to DowthermTM RP* and Therminol® 66*. Fouling resistant synthetic for low pressure systems operating up to 650°F (343°C). Recommended for oil and gas processing, chemical manufacturing, refining operations, low pressure thermal fluid systems, bio-products, polymer and resin production and many other applications.

  • Typical Properties

    Key Temperatures
    Maximum Bulk Fluid Operating Temperature 650°F 345°C
    Maximum Film Temperature 700°F 371°C
    Flash Point (PMCC) (ASTM D93) (min) 302°F 150°C
    Flash Point (COC) (ASTM D92) (min) 363°F 184°C
    Fire Point (ASTM D92) (min) 378°F 192°C
    Autoignition Temperature (ASTM E659) (min) 705°F 374°C
    Pour Point (ASTM D97) (max) 10°F -12°C
    Pumpability, at 300 cSt 52°F 11°C
    Pumpability, at 2000 cSt 27°F -3°C
    Normal Boiling Point 678°F 359°C
    Optimum Use Temperature (min to max) 30 – 650°F 0 – 345°C
    Physical Properties
    Appearance Pale yellow liquid
    Odor Faint, Characteristic
    Composition Hydrogenated terphenyl
    Moisture Content (max) 150 ppm
    Density, at 77°F/25°C 8.40 lbs/gal 1,007 kg/m3
    Specific Gravity, at 20°C /20°C (typical & range) 1.012
    Kinematic Viscosity, at 104°F/40°C 30.5 cSt
    Kinematic Viscosity, at 212°F/100°C 4 cSt
    Coefficient of Thermal Expansion 0.000455/°F 0.000819°C
    Total Acid Number (ASTM D974) < 0.01 mg KOH/g
    Acetone Insolubles < 10mg/100ml

  • Engineering Properties

    Temperature    Viscosity    Density   Specific Heat   Thermal Conductivity   Vapor Pressure  
    °F °C cSt cP lb/ft3 Kg/m3 BTU/lb-°F J/g-K BTU/hr-°F-ft W/m-K psia Kg/cm2
    40 4.4 600 613 63.81 1022.2 0.4616 1.931 0.0712 0.1232 -- --
    50 10 270 275 63.56 1018.2 0.4660 1.950 0.0719 0.1243 -- --
    60 15.6 142 144 63.31 1014.1 0.4704 1.968 0.0725 0.1254 -- --
    70 21.1 79 79.8 63.06 1010.1 0.4748 1.986 0.0732 0.1265 -- --
    80 26.7 59.8 60.2 62.81 1006.1 0.4791 2.005 0.0738 0.1276 0.0006 0.0000
    90 32.2 45 45.1 62.56 1002.1 0.4835 2.023 0.0744 0.1287 0.0007 0.0001
    100 37.8 34.8 34.7 62.30 998 0.4879 2.041 0.0751 0.1299 0.0009 0.0001
    110 43.3 23.5 23.4 62.05 994 0.4923 2.060 0.0757 0.1310 0.0011 0.0001
    120 48.9 17.6 17.4 61.80 990 0.4967 2.078 0.0764 0.1321 0.0014 0.0001
    130 54.4 14 13.8 61.55 986 0.5010 2.096 0.0770 0.1332 0.0018 0.0001
    140 60 11.5 11.3 61.30 981.9 0.5054 2.115 0.0776 0.1343 0.0022 0.0002
    150 65.6 9.00 8.80 61.05 977.9 0.5098 2.133 0.0783 0.1354 0.0028 0.0002
    160 71.1 7.77 7.57 60.80 973.9 0.5142 2.151 0.0789 0.1365 0.0035 0.0002
    170 76.7 6.34 6.15 60.55 969.9 0.5186 2.170 0.0796 0.1376 0.0044 0.0003
    180 82.2 5.47 5.28 60.30 965.9 0.5230 2.188 0.0802 0.1387 0.0055 0.0004
    190 87.8 4.90 4.71 60.04 961.8 0.5273 2.206 0.0809 0.1399 0.0068 0.0005
    200 93.3 4.39 4.20 59.79 957.8 0.5317 2.225 0.0815 0.1410 0.0085 0.0006
    210 98.9 3.93 3.75 59.54 953.8 0.5361 2.243 0.0821 0.1421 0.0107 0.0007
    220 104.4 3.52 3.35 59.29 949.8 0.5405 2.261 0.0828 0.1432 0.0129 0.0009
    230 110 3.16 2.98 59.04 945.7 0.5449 2.280 0.0834 0.1443 0.0161 0.0011
    240 115.6 2.83 2.66 58.79 941.7 0.5492 2.298 0.0841 0.1454 0.0201 0.0014
    250 121.1 2.53 2.38 58.54 937.7 0.5536 2.316 0.0847 0.1465 0.0251 0.0018
    260 126.7 2.27 2.12 58.29 933.7 0.5580 2.335 0.0854 0.1476 0.0313 0.0022
    270 132.2 2.14 1.99 58.03 929.6 0.5624 2.353 0.0860 0.1487 0.0391 0.0027
    280 137.8 2.04 1.89 57.78 925.6 0.5668 2.371 0.0866 0.1499 0.0488 0.0034
    290 143.3 1.94 1.79 57.53 921.6 0.5712 2.390 0.0873 0.1510 0.0609 0.0043
    300 148.9 1.85 1.69 57.28 917.6 0.5755 2.408 0.0879 0.1521 0.0760 0.0053
    310 154.4 1.76 1.60 57.03 913.6 0.5799 2.426 0.0886 0.1532 0.0949 0.0067
    320 160 1.67 1.52 56.78 909.5 0.5843 2.445 0.0892 0.1543 0.1185 0.0083
    330 165.6 1.59 1.44 56.53 905.5 0.5887 2.463 0.0899 0.1554 0.1479 0.0104
    340 171.1 1.51 1.36 56.28 901.5 0.5931 2.481 0.0905 0.1565 0.1845 0.0130
    350 176.7 1.44 1.29 56.03 897.5 0.5974 2.500 0.0911 0.1576 0.2303 0.0162
    360 182.2 1.37 1.22 55.77 893.4 0.6018 2.518 0.0918 0.1587 0.2875 0.0202
    370 187.8 1.30 1.16 55.52 889.4 0.6062 2.536 0.0924 0.1599 0.3588 0.0252
    380 193.3 1.24 1.10 55.27 885.4 0.6106 2.555 0.0931 0.1610 0.4479 0.0315
    390 198.9 1.18 1.04 55.02 881.4 0.6150 2.573 0.0937 0.1621 0.5590 0.0393
    400 204.4 1.12 0.982 54.77 877.4 0.6194 2.591 0.0944 0.1632 0.7038 0.0495
    410 210 1.07 0.930 54.52 873.3 0.6237 2.610 0.0950 0.1643 0.8064 0.0567
    420 215.6 1.01 0.881 54.27 869.3 0.6281 2.628 0.0956 0.1654 0.9240 0.0650
    430 221.1 0.964 0.834 54.02 865.3 0.6325 2.646 0.0963 0.1665 1.0587 0.0744
    440 226.7 0.917 0.790 53.77 861.3 0.6369 2.665 0.0969 0.1676 1.2131 0.0853
    450 232.2 0.872 0.748 53.51 857.2 0.6413 2.683 0.0976 0.1687 1.4431 0.1015
    460 237.8 0.830 0.708 53.26 853.2 0.6456 2.701 0.0982 0.1699 1.6434 0.1155
    470 243.3 0.789 0.670 53.01 849.2 0.6500 2.720 0.0988 0.1710 1.8716 0.1316
    480 248.9 0.751 0.634 52.76 845.2 0.6544 2.738 0.0995 0.1721 2.1354 0.1501
    490 254.4 0.714 0.601 52.51 841.1 0.6588 2.756 0.1001 0.1732 2.4467 0.1720
    500 260 0.679 0.569 52.26 837.1 0.6632 2.775 0.1008 0.1743 2.8035 0.1971
    510 265.6 0.646 0.538 52.01 833.1 0.6676 2.793 0.1014 0.1754 3.2123 0.2258
    520 271.1 0.600 0.497 51.76 829.1 0.6719 2.811 0.1021 0.1765 3.6806 0.2588
    530 276.7 0.582 0.480 51.51 825.1 0.6763 2.830 0.1027 0.1776 4.2173 0.2965
    540 282.2 0.557 0.457 51.25 821 0.6807 2.848 0.1033 0.1787 4.9945 0.3512
    550 287.8 0.541 0.442 51.00 817 0.6851 2.866 0.1040 0.1799 5.4528 0.3834
    560 293.3 0.527 0.428 50.75 813 0.6895 2.885 0.1046 0.1810 5.9530 0.4185
    570 298.9 0.519 0.420 50.50 809 0.6938 2.903 0.1053 0.1821 6.4992 0.4569
    580 304.4 0.500 0.402 50.25 804.9 0.6982 2.921 0.1059 0.1832 7.0955 0.4989
    590 310 0.481 0.385 50.00 800.9 0.7026 2.940 0.1066 0.1843 7.7464 0.5446
    600 315.6 0.477 0.380 49.75 796.9 0.7070 2.958 0.1072 0.1854 8.4571 0.5946
    610 321.1 0.462 0.366 49.50 792.9 0.7114 2.976 0.1078 0.1865 9.2330 0.6491
    620 326.7 0.456 0.360 49.25 788.9 0.7158 2.995 0.1085 0.1876 10.0801 0.7087
    630 332.2 0.445 0.349 48.99 784.8 0.7201 3.013 0.1091 0.1887 11.0049 0.7737
    640 337.8 0.438 0.342 48.74 780.8 0.7245 3.031 0.1098 0.1899 12.0146 0.8447
    650 343.3 0.430 0.334 48.49 776.8 0.7289 3.050 0.1104 0.1910 13.1169 0.9222
    660 348.9 0.421 0.325 48.24 772.8 0.7333 3.068 0.1111 0.1921 14.3203 1.0068
    * Data represents typical laboratory samples and are not guaranteed for all samples
    ** Enthalpy basis is liquid crystallizing point of 53.6ºF (12ºC)
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