Industrial / Energy Fluids

XCELTHERM® XT

High efficiency heating/cooling fluid with -70ºF to 650ºF range (-55ºC to 345ºC); liquid or vapor phase, 527ºF (275ºC) IPB. Recommended for natural gas processing, solvent recovery units, chemical processing and many other applications. Expecially useful when a high heat transfer coefficient is desired across a broad temperature range.

  • Typical Properties

    Key Operating Temperatures
    Maximum Bulk Fluid Operating Temperature 650ºF 343ºC
    Maximum Film Temperature 700ºF 371ºC
    Flash Point (PMCC)(ASTM D93)(min) 255°F 124°C
    Flash Point (COC)(ASTM D92)(min) 275°F 135°C
    Fire Point (ASTM D92)(min) 307°F 153°C
    Autoignition Temperature (min) 803°F 428°C
    Pumpability, at 300 cSt (mm2/s) -47°F -44°C
    Normal Boiling Point, 10% Fraction 522°F 272°C
    Physical Properties
    Appearance Water white to straw yellow, clear liquid
    Odor Mild
    Composition Radco-engineered alkyl aromatic
    Moisture Content (max) 300 ppm
    Average Molecular Weight 182 g/mol
    Density, at 77°F/25°C 8.35 lbs/gal 1,001 kg/m3
    Specific Gravity, at 77°F/25°C 0.99
    Critical Pressure 23.7 atm 2.5 MPa
    * Data represents typical laboratory samples and are not guaranteed for all samples.

  • Engineering Properties

    Temperature Viscosity Density Specific Heat Thermal
    Conductivity

    Vapor
    Pressure

    ºF

    ºC

    cP

    lb/ft3

    kg/m3

    BTU/lb-ºF

    J/g-K

    BTU/ft-hr-ºF

    W/m-K

    psia

    kg/cm2
    -50 -45.6 114.950 65.18 1044.16 0.359 1.500 0.0830 0.1437 – –
    0 -17.8 17.938 63.93 1024.18 0.379 1.586 0.0805 0.1394 – –
    10 12.2 13.886 63.68 1020.18 0.383 1.603 0.0800 0.1385 – –
    20 -6.7 10.251 63.43 1016.18 0.387 1.620 0.0795 0.1377 – –
    30 -1.1 8.914 63.18 1012.19 0.391 1.638 0.0790 0.1368 – –
    40 4.4 7.164 62.93 1008.19 0.395 1.655 0.0786 0.1360 – –
    50 10.0 5.980 62.68 1004.19 0.400 1.672 0.0781 0.1351 – –
    60 15.6 5.034 62.43 1000.20 0.404 1.689 0.0776 0.1342 – –
    70 21.1 4.245 62.18 996.20 0.408 1.706 0.0771 0.1334 – –
    80 26.7 3.661 61.94 992.20 0.412 1.723 0.0766 0.1325 – –
    90 32.2 3.211 61.69 988.21 0.416 1.741 0.0761 0.1317 – –
    100 37.8 2.876 61.44 984.21 0.420 1.758 0.0756 0.1308 – –
    110 43.3 2.543 61.19 980.21 0.424 1.775 0.0751 0.1300 – –
    120 48.9 2.264 90.94 976.22 0.428 1.792 0.0746 0.1291 – –
    130 54.4 2.035 60.69 972.22 0.432 1.809 0.0741 0.1283 – –
    140 60.0 1.841 60.44 968.22 0.436 1.826 0.0736 0.1274 – –
    150 65.6 1.678 60.19 964.23 0.441 1.844 0.0731 0.1265 – –
    160 71.1 1.538 59.94 960.23 0.445 1.861 0.0726 0.1257 – –
    170 76.7 1.416 59.69 956.23 0.449 1.878 0.0721 0.1248 – –
    180 82.2 1.310 59.44 952.24 0.453 1.895 0.0716 0.1240 – –
    190 87.8 1.218 59.19 948.24 0.457 1.912 0.0711 0.1231

    –

    		 –
    200 93.3 1.135 58.94 944.24 0.461 1.929 0.0706 0.1223 0.0223 0.0016
    210 98.9 1.063 58.69 940.25 0.465 1.947 0.0701 0.1214 0.0309 0.0022
    220 104.4 0.991 58.44 936.25 0.469 1.964 0.0696 0.1205 0.0423 0.0030
    230 110.0 0.926 58.19 932.25 0.473 1.981 0.0691 0.1197 0.0570 0.0040
    240 115.6 0.868 57.94 928.26 0.477 1.998 0.0687 0.1188 0.0759 0.0053
    250 121.1 0.816 57.69 924.26 0.482 2.015 0.0682 0.1180 0.0998 0.0070
    260 126.7 0.768 57.44 920.26 0.486 2.032 0.0677 0.1171 0.1299 0.0091
    270 132.2 0.724 57.20 916.26 0.490 2.049 0.0672 0.1163 0.1674 0.0118
    280 137.8 0.685 56.95 912.27 0.494 2.067 0.0667 0.1154

    0.2137

    		0.0150
    290 143.3 0.644 56.70 908.27 0.498 2.084 0.0662 0.1145 0.2705 0.0190
    300 148.9 0.615 56.45 904.27 0.502 2.101 0.0657 0.1137 0.3397 0.0239
    310 154.4 0.585 56.20 900.28 0.506 2.118 0.0652 0.1128 0.4233 0.0298
    320 160.0 0.555 55.95 896.28 0.510 2.135 0.0647 0.1120 0.5239 0.0368
    340 171.1 0.502 55.45 888.29 0.518 2.170 0.0637 0.1103 0.7872 0.0553
    350 176.7 0.479 55.20 884.29 0.523 2.187 0.0632 0.1094

    0.9563

    		0.0672
    360 182.2 0.457 54.95 880.29 0.527 2.204 0.0627 0.1085 1.1554

    0.0812
    370 187.8 0.437 54.70 876.30 0.531 2.221 0.0622 0.1077 1.3888

    0.0976
    380 193.3 0.417 54.45 872.30 0.535 2.238 0.0617 0.1068

    1.6611

    0.1168
    390 198.9 0.400 54.20 868.30 0.539 2.255 0.0612 0.1060

    1.9776

    0.1390
    400 204.4 0.382 53.95 964.31 0.543 2.273 0.0607 0.1051

    2.3440

    0.1648
    410 210.0 0.367 53.70 860.31 0.547 2.290 0.0602 0.1043

    2.7667

    0.1945
    420 215.6 0.352 53.45 856.31 0.551 2.307 0.0597 0.1034

    3.2526

    0.2287
    430 221.1 0.340 53.20 852.32 0.555 2.324 0.0592 0.1025

    3.8093

    0.2678
    440 226.7 0.326 52.95 848.32 0.559 2.341 0.0588 0.1017

    4.4451

    0.3125
    450 232.2 0.314 52.70 844.32 0.564 2.358 0.0583 0.1008

    5.1690

    0.3634
    460 237.8 0.303 52.45 840.33 0.568 2.375 0.0578 0.1000

    5.9910

    0.4212
    470 243.3 0.292 52.21 836.33 0.572 2.393 0.0573 0.0991

    6.9216

    0.4867
    480 248.9 0.282 51.96 832.33 0.576 2.410 0.0568 0.0983

    7.9725

    0.5605
    490 254.4 0.272 51.71 828.34 0.580 2.427 0.0563 0.0974

    9.1562

    0.6438
    500 260.0 0.263 51.46 824.34 0.584 2.444 0.0558 0.0966

    10.4864

    0.7373
    510 265.6 0.258 51.21 820.34 0.588 2.461 0.0553 0.0957 11.9775 0.8421
    520 271.1 0.251 50.96 816.35 0.592 2.478 0.0548 0.0948

    13.6455

    		0.9594
    530 276.7 0.245 50.71 812.35 0.596 2.496 0.0543 0.0940

    15.5071

    		1.0903
    540 282.2 0.239 50.46 808.35 0.600 2.513 0.0538 0.0931

    17.5806

    		1.2361
    550 287.8 0.233 50.21 804.35 0.605 2.530 0.0533 0.0923

    19.8855

    		1.3981
    560 293.3 0.227 49.96 800.36 0.609 2.547 0.0528 0.0914

    22.4428

    		1.5780
    570 298.9 0.222 49.71 796.36 0.613 2.564 0.0523 0.0906

    25.2747

    		1.7771
    580 304.4 0.216 49.46 792.36 0.617 2.581 0.0518 0.0897

    28.4052

    		1.9972
    590 310.0 0.211 49.21 788.37 0.621 2.599 0.0513 0.0888

    31.8598

    		2.2401
    600 315.6 0.206 48.96 784.37 0.625 2.616 0.0508 0.0880

    35.6656

    		2.5076
    610 321.1 0.201 48.71 780.37 0.629 2.633 0.0503 0.0871

    39.8517

    		2.8020
    620 326.7 0.196 48.46 776.38 0.633 2.650 0.0498 0.0863

    44.4489

    		3.1252
    630 332.2 0.191 48.21 772.38 0.637 2.667 0.0493 0.0854

    49.4897

    		3.4796
    640 337.8 0.186 47.96 768.38 0.641 2.684 0.0489 0.0846

    55.0092

    		3.8677
    650 343.3 0.181 47.71 764.39 0.646 2.702 0.0484 0.0837

    61.0440

    		4.2920
    * 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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