Solar 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.

  • Typical Properties

    LV1
    Key Operating Temperatures
    Maximum Bulk Fluid
    • Liquid Phase
    700ºF
    371ºC
    • Vapor Phase
    700ºF
    371ºC
    Maximum Film Temperature
    750ºF
    400ºC
    Crystallizing Point
    45ºF
    7.2ºC
    Physical Properties
    Flash Point (minimum)
    251ºF
    122ºC
    Fire Point (minimum)
    263ºF
    128ºC
    Autoignition Temperature (minimum)
    1120ºF
    604ºC
    Normal Boiling Point@760mm Hg
    496ºF
    258ºC
    Critical Temperature
    931.1ºF
    499.5ºC
    Critical Pressure
    443.2 psia
    Critical Volume
    0.0516 cu ft/lb
    Moisture (Maximum)
    300 ppm
    Density @ 77ºF/25ºC
    8.84 lbs/gal
    Specific Gravity @ 77ºF/25ºC
    1.060
    Average Molecular Weight
    171.9
    Composition Stable mixtures of 1,1 Diphenylethane and Diphenyl Oxide
    * 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

    cP

    lb/ft3

    kg/m3

    BTU/lb-ºF

    J/g-K

    BTU/ft-hr-ºF

    W/m-K

    BTU/lb

    J/g

    psia

    kg/cm2

    45 7.2 8.416 67.05 1074.20 0.366 1.532 0.0793 0.1372 0.0 0.0
    55 12.8 7.146 66.76 1069.56 0.370 1.547 0.0790 0.1367 3.7 8.5 0.0001
    60 15.6 6.585 66.62 1067.24 0.372 1.555 0.0788 0.1364 5.5 12.9 0.0001
    80 26.7 4.747 66.04 1057.97 0.380 1.589 0.0781 0.1352 13.0 30.3 0.0004
    100 37.8 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 2.619 64.88 1039.43 0.396 1.656 0.0768 0.1329 28.6 66.4 0.0024 0.0002
    140 60.0 2.110 64.30 1030.15 0.403 1.686 0.0761 0.1317 36.5 84.9 0.0055 0.0004
    160 71.1 1.748 63.73 1020.88 0.411 1.720 0.0753 0.1304 44.7 103.8 0.0119 0.0008
    180 82.2 1.478 63.15 1011.61 0.418 1.750 0.0745 0.1289 52.9 123.0 0.238 0.0017
    200 93.3 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 1.113 61.99 993.06 0.433 1.814 0.0729 0.1262 69.9 162.5 0.0819 0.0058
    240 115.6 .0981 61.41 983.79 0.441 1.847 0.0721 0.1248 78.7 182.9 0.1420 0.0100
    260 126.7 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 0.782 60.25 965.25 0.456 1.907 0.0704 0.1218 96.6 224.4 0.3813 0.0268
    300 148.9 0.705 59.67 955.97 0.464 1.941 0.0694 0.1202 105.8 245.9 0.5937 0.0417
    320 160.0 0.625 59.09 946.70 0.471 1.971 0.0685 0.1186 115.1 267.4 0.8983 0.0632
    340 171.1 0.560 58.52 937.43 0.478 2.001 0.0676 0.1170 124.5 289.4 1.3255 0.0932
    360 182.2
    0.501 57.94 928.16 0.485 2.031 0.0667 0.1154 134.1 311.6 1.9126 0.1345
    380 193.3 0.449 57.36 918.88 0.492 2.061 0.0657 0.1137 143.8 334.2 2.7052 0.1902
    400 204.4 0.402 56.78 909.61 0.500 2.091 0.0647 0.1120 153.7 357.1 3.7582 0.2642
    420 215.6 0.380 56.20 900.34 0.507 2.121 0.0637 0.1103 163.7 380.3 5.0923 0.3580
    440 226.7 0.351 55.62 891.07 0.515 2.155 0.0626 0.1084

    174.0

    404.3

    6.8153

    0.4792
    460 237.8 0.325 55.04 881.79 0.521 2.181 0.0615 0.1065 184.1 427.8 8.9813 0.6315
    480 248.9 0.302 54.46 872.52 0.529 2.215 0.0605 0.1046 194.7 452.5 11.6262 0.8174
    500 260.0 0.281 53.89 863.25 0.536 2.245 0.0594 0.1028 205.3 477.1 14.8938 1.0472
    520 271.1 0.270 53.31 853.97 0.544 2.275 0.0583 0.1009 216.0 502.0 18.9744 1.3341
    540 282.2 0.254 52.73 844.70 0.551 2.305 0.0571 0.0989 226.9 527.3 23.4278 1.6472
    560 293.3 0.240 52.15 835.43 0.558 2.335 0.0559 0.0968 237.9 552.9 29.4791 2.0727
    580 304.4 0.226 51.57 826.16 0.565 2.365 0.0548 0.0948 249.1 578.8 36.1528 2.5419
    600 315.6 0.213 50.99 816.88 0.572 2.395 0.0535 0.0926 260.4 605.1 43.9759 3.0919
    620 326.7 0.202 50.41 807.61 0.580 2.429 0.0523 0.0905

    272.1

    632.3

    53.0235

    3.7281
    640 337.8 0.192 49.83 798.34 0.588 2.459 0.0510 0.0883 283.7 659.2 63.4136 4.4586
    660 348.9 0.182 49.26 789.07 0.596 2.492 0.0498 0.0862 295.7 687.1 75.3070 5.2948
    680 360.0 0.173 48.68 779.79 0.604 2.526 0.0486 0.0840 307.8 715.4 88.9551 6.2544
    700 371.1 0.165 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 Vap

    Enthalpy
    ¹

    ºF

    ºC

    cP

    lb/ft3

    kg/m3

    BTU/lb-ºF

    J/g-K

    BTU/ft-hr-ºF

    W/m-K

    BTU/lb

    J/g

    BTU/lb

    J/g

    45 7.2 0.00760 0.2319 0.5389 0.0099 0.0172

    177.8

    413.2

    177.8

    413.2

    55 12.8 0.00780 0.2360 0.5484 0.0093 0.0160

    176.8

    410.9

    180.5

    419.4

    60 15.6 0.00790 0.2381 0.5533 0.0093 0.0161

    176.2

    409.6

    181.8

    422.4

    80 26.7 0.00830 0.2466 0.5732 0.0093 0.0162

    173.9

    404.1

    186.9

    434.4

    100 37.8 0.00870 0.2551 0.5929 0.0095 0.0164

    171.5

    398.5

    192.2

    446.6

    120 48.9 0.00910 0.0001 0.0011 0.2636 0.6126 0.0095 0.0165

    169.1

    393.0

    197.7

    459.4

    140 60.0 0.00950 0.0001 0.0024 0.2720 0.6321 0.0097 0.0167

    166.7

    387.5

    203.3

    472.4

    160 71.1 0.00990 0.0003 0.0049 0.2804 0.6516 0.0098 0.0170

    164.4

    382.0

    209.0

    485.8

    180 82.2 0.01030 0.0006 0.0095 0.2887 0.6710 0.0100 0.0172

    162.0

    376.5

    214.9

    499.5

    200 93.3 0.01070 0.0011 0.0175 0.2970 0.6903 0.0101 0.0175

    159.6

    371.0

    221.0

    513.7

    220 104.4 0.01110 0.0019 0.0308 0.3053 0.7095 0.0102 0.0177

    157.4

    365.7

    227.03

    528.2

    240 115.6 0.01150 0.0032 0.0519 0.3135 0.7287 0.0104 0.0180

    155.6

    361.6

    234.3

    544.5

    260 126.7 01.1190 0.0053 0.0842 0.3217 0.7477 0.0105 0.0182 153.0 355.7 240.6 559.2
    280 137.8 0.01230 0.0082 0.1318 0.3299 0.7667 0.0108 0.0186

    151.0

    350.9

    247.6

    575.3
    300 148.9 0.01270 0.0125 0.1997 0.3380 0.7856 0.0109 0.0189

    148.7

    345.6

    254.5

    591.5
    320 160.0 0.01310 0.0184 0.2944 0.3461 0.8044 0.0112 0.0193

    146.5

    340.5

    261.6

    607.9
    340 171.1 0101350 0.0264 0.4236 0.3542 0.8231 0.0113 0.0196

    144.2

    335.1

    268.7

    624.5
    360 182.2 0.01390 0.0372 0.5963 0.3622 0.8417 0.0115 0.0200

    141.9

    329.8

    276.0

    641.4
    380 193.3 0.01430 0.0514 0.8234 0.3702 0.8602 0.0118 0.0204

    139.6

    324.4

    283.4

    658.6
    400 204.4 0.01470 0.0697 1.1172 0.3781 0.8787 0.0120 0.0208

    137.4

    319.3

    291.0

    676.4
    420 215.6 0.01510 0.0923 1.4794 0.3860 0.8970 0.0123 0.0214

    135.1

    313.9

    298.7

    694.2
    440 226.7 0.01550 0.1208 1.9360 0.3939 0.9153 0.0126 0.0218

    132.8

    308.5

    306.7

    712.8
    460 237.8 0.01590 0.1558 2.4958 0.4017 0.9335 0.0128 0.0222

    130.4

    303.2

    316.5

    735.7
    480 248.9 0.01630 0.1974 3.1620 0.4095 0.9516 0.0132 0.0228

    128.1

    297.8

    322.8

    750.3
    500 260.0 0.01670 0.2476 3.9663 0.4172 0.9696 0.0134 0.0232

    125.9

    292.6

    331.2

    769.7
    520 271.1 0.01710 0.3090 4.9498 0.4249 .09876 0.0137 0.0238

    123.6

    287.2

    339.6

    789.2
    540 282.2 0.01750 0.3739 5.9893 0.4326 1.0054 0.0141 0.243

    121.3

    281.8

    348.2

    809.1
    560 293.3 0.01790 .04612 7.3885 0.4403 1.0232 0.0144 0.0249

    118.9

    276.4

    356.8

    829.3
    580 304.4 0.01830 0.5547 8.8868 0.4479 1.0409 0.0147 0.0255

    116.6

    271.0

    365.7

    849.8
    600 315.6 0.01870 .06620 10.6058 0.4554 1.0585 0.0150 0.0260

    114.4

    265.8

    374.7

    870.9
    620 326.7 0.01910 0.7835 12.5510 0.4630 1.0760 0.0154 0.0266

    111.5

    259.2

    383.6

    891.5
    640 337.8 0.01950 0.9199 14.7374 0.4705 1.0934 0.0158 0.0273

    108.3

    251.8

    392.0

    911.0
    660 348.9 0.01990 1.0730 17.1888 0.4779 1.1107 0.0161 0.0279

    105.1

    244.4

    400.8

    931.5
    680 360.0 0.02030 1.2452 19.9476 0.4854 1.1280 0.0165 0.0286

    102.0

    237.0

    409.8

    952.3
    700 371.1 0.02070 1.4267 22.8559 0.4927 1.1451 0.0169 0.0293

    98.8

    229.5

    418.9

    973.5

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