Industrial / Energy Fluids

XCELTHERM® LV1

Biphenyl-free, non-hazardous alternative for high temp fluids with liquid or vapor phase to 700ºF (370ºC). Chemically similar to DOWTHERM™ A when used under 700ºF (370ºC). Recommended for Concentrated Solar Power Systems, PET production, Synthetic Fiber plants, Chemical Processing and many other applications that require a high temperature heat transfer fluid. (Scroll down for product details...)
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  • Typical Properties

    Key Operating Temperatures
    Maximum Bulk Fluid
    Liquid Phase 700ºF 371ºC
    Vapor Phase 700ºF 371ºC
    Maximum Film Temperature 750ºF 400ºC
    Freezing/Melting Point 45°F 7.2°C
    Flash Point (Pensky Martens)(ASTM D93) 225°F 107°C
    Flash Point (COC)(ASTM D92) 252°F 122°C
    Fire Point (minimum)(ASTM D92) 262°F 128°C
    Autoignition Temperature (minimum) 1120°F 604°C
    Normal Boiling Point, at 760 mm Hg 496°F 258°C
    Crystallizing Point 45ºF 7.2ºC
    Physical Properties
    Appearance Water-white to straw yellow liquid or solid (may vary)
    Odor Aromatic
    Composition Stable mixtures of 1,1 Diphenylethane and Diphenyl Oxide
    Flash Point (minimum) 251ºF 122ºC
    Fire Point (minimum) 263ºF 128ºC
    Autoignition Temperature (minimum) 1120ºF 604ºC
    Normal Boiling Point@760mm Hg 496ºF 258ºC
    Critical Temperature 931ºF 500ºC
    Critical Pressure 443.2 psia
    Critical Volume 0.0516 ft3/lb
    Moisture Content (maximum) 300 ppm
    Density @ 77ºF/25ºC 8.84 lbs/gal
    Specific Gravity @ 77ºF/25ºC 1.060
    Average Molecular Weight 171.9 g/mol
    Heat of Vaporization, at Maximum Use Temperature 276.8 kJ/kg (119 BTU/lb)
    Heat of Fusion 23.3 cal/g
    * Data represents typical laboratory samples and are not guaranteed for all samples.

  • Engineering Properties

    Liquid Phase
    Temperature Viscosity Density Specific Heat Thermal Conductivity Enthalpy (Liquid) Vapor Pressure
    ºF ºC mm2/s (cSt) cP lb/ft3 kg/m3 BTU/lb-°F J/g-K BTU/ft-hr-°F W/m-K BTU/lb J/g psia kg/cm2
    45 7.2 7.835 8.416 67.05 1074.20 0.366 1.532 0.0793 0.1372 0.0 0.0 – –
    55 12.8 6.681 7.146 66.76 1069.56 0.370 1.547 0.0790 0.1367 3.7 8.5 0.0001 0.0000
    60 15.6 6.170 6.585 66.62 1067.24 0.372 1.555 0.0788 0.1364 5.5 12.9 0.0001 0.0000
    80 26.7 4.487 4.747 66.04 1057.97 0.380 1.589 0.0781 0.1352 13.0 30.3 0.0004 0.0000
    100 37.8 3.263 3.422 65.46 1048.70 0.388 1.623 0.0775 0.1341 20.7 48.2 0.0010 0.0001
    120 48.9 2.520 2.619 64.88 1039.43 0.396 1.656 0.0768 0.1329 28.6 66.4 0.0024 0.0002
    140 60.0 2.048 2.110 64.30 1030.15 0.403 1.686 0.0761 0.1317 36.5 84.9 0.0055 0.0004
    160 71.1 1.712 1.748 63.73 1020.88 0.411 1.720 0.0753 0.1304 44.7 103.8 0.0119 0.0008
    180 82.2 1.461 1.478 63.15 1011.61 0.418 1.750 0.0745 0.1289 52.9 123.0 0.2380 0.0017
    200 93.3 1.274 1.277 62.57 1002.34 0.426 1.784 0.0738 0.1276 61.4 142.7 0.0453 0.0032
    220 104.4 1.121 1.113 61.99 993.06 0.433 1.814 0.0729 0.1262 69.9 162.5 0.0819 0.0058
    240 115.6 0.100 0.098 61.41 983.79 0.441 1.847 0.0721 0.1248 78.7 182.9 0.1420 0.0100
    260 126.7 0.895 0.872 60.83 974.52 0.449 1.877 0.0713 0.1233 87.6 203.5 0.2371 0.0167
    280 137.8 0.810 0.782 60.25 965.25 0.456 1.907 0.0704 0.1218 96.6 224.4 0.3813 0.0268
    300 148.9 0.737 0.705 59.67 955.97 0.464 1.941 0.0694 0.1202 105.8 245.9 0.5937 0.0417
    320 160.0 0.660 0.625 59.09 946.70 0.471 1.971 0.0685 0.1186 115.1 267.4 0.8983 0.0632
    340 171.1 0.597 0.560 58.52 937.43 0.478 2.001 0.0676 0.1170 124.5 289.4 1.3255 0.0932
    360 182.2 0.540 0.501 57.94 928.16 0.485 2.031 0.0667 0.1154 134.1 311.6 1.9126 0.1345
    380 193.3 0.489 0.449 57.36 918.88 0.492 2.061 0.0657 0.1137 143.8 334.2 2.7052 0.1902
    400 204.4 0.442 0.402 56.78 909.61 0.500 2.091 0.0647 0.1120 153.7 357.1 3.7582 0.2642
    420 215.6 0.422 0.380 56.20 900.34 0.507 2.121 0.0637 0.1103 163.7 380.3 5.0923 0.3580
    440 226.7 0.394 0.351 55.62 891.07 0.515 2.155 0.0626 0.1084 174.0 404.3 6.8153 0.4792
    460 237.8 0.369 0.325 55.04 881.79 0.521 2.181 0.0615 0.1065 184.1 427.8 8.9813 0.6315
    480 248.9 0.346 0.302 54.46 872.52 0.529 2.215 0.0605 0.1046 194.7 452.5 11.6262 0.8174
    500 260.0 0.326 0.281 53.89 863.25 0.536 2.245 0.0594 0.1028 205.3 477.1 14.8938 1.0472
    520 271.1 0.316 0.270 53.31 853.97 0.544 2.275 0.0583 0.1009 216.0 502.0 18.9744 1.3341
    540 282.2 0.301 0.254 52.73 844.70 0.551 2.305 0.0571 0.0989 226.9 527.3 23.4278 1.6472
    560 293.3 0.287 0.240 52.15 835.43 0.558 2.335 0.0559 0.0968 237.9 552.9 29.4791 2.0727
    580 304.4 0.274 0.226 51.57 826.16 0.565 2.365 0.0548 0.0948 249.1 578.8 36.1528 2.5419
    600 315.6 0.261 0.213 50.99 816.88 0.572 2.395 0.0535 0.0926 260.4 605.1 43.9759 3.0919
    620 326.7 0.250 0.202 50.41 807.61 0.580 2.429 0.0523 0.0905 272.1 632.3 53.0235 3.7281
    640 337.8 0.240 0.192 49.83 798.34 0.588 2.459 0.0510 0.0883 283.7 659.2 63.4136 4.4586
    660 348.9 0.231 0.182 49.26 789.07 0.596 2.492 0.0498 0.0862 295.7 687.1 75.3070 5.2948
    680 360.0 0.222 0.173 48.68 779.79 0.604 2.526 0.0486 0.0840 307.8 715.4 88.9551 6.2544
    700 371.1 0.214 0.165 48.10 770.52 0.612 2.559 0.0472 0.0818 320.1 744.0 103.7129 7.2921
    Vapor Phase
    Temperature Viscosity Density Specific Heat Thermal Conductivity Latent Heat of

    Vaporization

    		 Enthalpy†
    ºF ºC cP lb/ft3 kg/m3 BTU/lb-°F J/g-K BTU/ft-hr-°F W/m-K BTU/lb J/g BTU/lb J/g
    45 7.2 0.0076 – – 0.2319 0.5389 0.0099 0.0172 177.8 413.2 177.8 413.2
    55 12.8 0.0078 – – 0.2360 0.5484 0.0093 0.0160 176.8 410.9 180.5 419.4
    60 15.6 0.0079 – – 0.2381 0.5533 0.0093 0.0161 176.2 409.6 181.8 422.4
    80 26.7 0.0083 – – 0.2466 0.5732 0.0093 0.0162 173.9 404.1 186.9 434.4
    100 37.8 0.0087 – – 0.2551 0.5929 0.0095 0.0164 171.5 398.5 192.2 446.6
    120 48.9 0.0091 0.0001 0.0011 0.2636 0.6126 0.0095 0.0165 169.1 393.0 197.7 459.4
    140 60.0 0.0095 0.0001 0.0024 0.2720 0.6321 0.0097 0.0167 166.7 387.5 203.3 472.4
    160 71.1 0.0099 0.0003 0.0049 0.2804 0.6516 0.0098 0.0170 164.4 382.0 209.0 485.8
    180 82.2 0.0103 0.0006 0.0095 0.2887 0.6710 0.0100 0.0172 162.0 376.5 214.9 499.5
    200 93.3 0.0107 0.0011 0.0175 0.2970 0.6903 0.0101 0.0175 159.6 371.0 221.0 513.7
    220 104.4 0.0111 0.0019 0.0308 0.3053 0.7095 0.0102 0.0177 157.4 365.7 227.0 528.2
    240 115.6 0.0115 0.0032 0.0519 0.3135 0.7287 0.0104 0.0180 155.6 361.6 234.3 544.5
    260 126.7 0.0119 0.0053 0.0842 0.3217 0.7477 0.0105 0.0182 153.0 355.7 240.6 559.2
    280 137.8 0.0123 0.0082 0.1318 0.3299 0.7667 0.0108 0.0186 151.0 350.9 247.6 575.3
    300 148.9 0.0127 0.0125 0.1997 0.3380 0.7856 0.0109 0.0189 148.7 345.6 254.5 591.5
    320 160.0 0.0131 0.0184 0.2944 0.3461 0.8044 0.0112 0.0193 146.5 340.5 261.6 607.9
    340 171.1 0.0135 0.0264 0.4236 0.3542 0.8231 0.0113 0.0196 144.2 335.1 268.7 624.5
    360 182.2 0.0139 0.0372 0.5963 0.3622 0.8417 0.0115 0.0200 141.9 329.8 276.0 641.4
    380 193.3 0.0143 0.0514 0.8234 0.3702 0.8602 0.0118 0.0204 139.6 324.4 283.4 658.6
    400 204.4 0.0147 0.0697 1.1172 0.3781 0.8787 0.0120 0.0208 137.4 319.3 291.0 676.4
    420 215.6 0.0151 0.0923 1.4794 0.3860 0.8970 0.0123 0.0214 135.1 313.9 298.7 694.2
    440 226.7 0.0155 0.1208 1.9360 0.3939 0.9153 0.0126 0.0218 132.8 308.5 306.7 712.8
    460 237.8 0.0159 0.1558 2.4958 0.4017 0.9335 0.0128 0.0222 130.4 303.2 316.5 735.7
    480 248.9 0.0163 0.1974 3.1620 0.4095 0.9516 0.0132 0.0228 128.1 297.8 322.8 750.3
    500 260.0 0.0167 0.2476 3.9663 0.4172 0.9696 0.0134 0.0232 125.9 292.6 331.2 769.7
    520 271.1 0.0171 0.3090 4.9498 0.4249 0.0988 0.0137 0.0238 123.6 287.2 339.6 789.2
    540 282.2 0.0175 0.3739 5.9893 0.4326 1.0054 0.0141 0.2430 121.3 281.8 348.2 809.1
    560 293.3 0.0179 0.4612 7.3885 0.4403 1.0232 0.0144 0.0249 118.9 276.4 356.8 829.3
    580 304.4 0.0183 0.5547 8.8868 0.4479 1.0409 0.0147 0.0255 116.6 271.0 365.7 849.8
    600 315.6 0.0187 0.6620 10.6058 0.4554 1.0585 0.0150 0.0260 114.4 265.8 374.7 870.9
    620 326.7 0.0191 0.7835 12.5510 0.4630 1.0760 0.0154 0.0266 111.5 259.2 383.6 891.5
    640 337.8 0.0195 0.9199 14.7374 0.4705 1.0934 0.0158 0.0273 108.3 251.8 392.0 911.0
    660 348.9 0.0199 1.0730 17.1888 0.4779 1.1107 0.0161 0.0279 105.1 244.4 400.8 931.5
    680 360.0 0.0203 1.2452 19.9476 0.4854 1.1280 0.0165 0.0286 102.0 237.0 409.8 952.3
    700 371.1 0.0207 1.4267 22.8559 0.4927 1.1451 0.0169 0.0293 98.8 229.5 418.9 973.5
    * Dowtherm is a registered trademark of Dow Chemical
    † Enthalpy basis is liquid crystalizing point of 40°F (4.4°C)