Lithium Sulfate, Beta (Li2SO4) Li2O4S1(cr) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 298.15 129.704 113.802 113.802 0. -1425.373 -1310.073 229.519 300 132.214 114.612 113.804 0.242 -1425.373 -1309.358 227.979 400 176.565 159.302 119.593 15.883 -1425.472 -1270.820 165.952 500 196.648 201.029 131.788 34.621 -1428.646 -1231.859 128.691 600 207.526 237.933 146.469 54.878 -1424.259 -1192.891 103.850 700 212.547 270.354 161.901 75.917 -1418.927 -1154.743 86.168 800 213.384 298.803 177.274 97.223 -1413.298 -1117.386 72.958 848.000 213.384 311.237 184.509 107.465 ALPHA <--> BETA 900 213.384 323.936 192.201 118.561 1460.810 1079.654 62.661 1000 213.384 346.418 206.518 139.900 -1454.024 -1037.668 54.202 1100 213.384 366.756 220.176 161.238 -1447.337 -996.357 47.313 1132.000 213.384 372.875 224.406 168.066 BETA <--> LIQUID 1200 213.384 385.323 233.176 182.576 1440.735 955.650 41.598 1300 213.384 402.402 245.545 203.915 -1434.210 -915.492 36.785 1400 213.384 418.216 257.321 225.253 -1427.749 -875.833 32.678 1500 213.384 432.938 268.543 246.592 -1421.342 -836.635 29.134 1600 213.384 446.709 279.253 267.930 -1414.985 -797.862 26.048 1700 213.384 459.646 289.488 289.268 -1699.147 -745.133 22.895 1800 213.384 471.842 299.283 310.607 -1691.378 -689.240 20.001 1900 213.384 483.379 308.671 331.945 -1683.671 -633.776 17.424 2000 213.384 494.325 317.683 353.284 -1676.027 -578.716 15.115