Lithium Borate (Li2B4O7) B4Li2O7(l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 250 298.15 181.146 173.375 173.375 0. -3317.715 -3131.030 548.543 300 181.586 174.497 173.379 0.336 -3317.745 -3129.872 544.959 400 205.225 229.974 180.784 19.676 -3319.455 -3066.995 400.508 500 228.869 278.308 195.547 41.381 -3327.246 -3003.056 313.727 600 252.513 322.126 213.043 65.450 -3328.127 -2938.114 255.786 700 276.157 362.827 231.565 91.883 -3327.555 -2873.135 214.396 756.115 289.425 384.627 242.119 107.752 GLASS <--> LIQUID 756.115 455.516 384.627 242.119 107.752 TRANSITION 800 456.746 410.361 250.649 127.769 -3318.272 -2808.552 183.380 900 459.549 464.319 271.448 173.584 -3299.686 -2745.956 159.371 1000 462.352 512.883 293.204 219.679 -3281.329 -2685.416 140.272 1100 465.156 557.081 315.213 266.055 -3263.117 -2626.707 124.732 1190.000 467.680 593.760 334.910 308.032 CRYSTAL <--> LIQUID 1200 467.959 597.675 337.083 312.710 3244.989 2569.652 111.854 1300 470.762 635.243 358.592 359.646 -3226.905 -2514.108 101.018 1400 473.444 670.231 379.616 406.861 -3208.828 -2459.955 91.782 1500 475.836 702.977 400.094 454.325 -3190.762 -2407.096 83.823 1600 478.294 733.765 419.995 502.031 -3172.695 -2355.440 76.897 1700 480.818 762.836 439.315 549.986 -3445.081 -2290.563 70.380 1800 483.408 790.392 458.061 598.196 -3425.455 -2223.218 64.516 1900 486.063 816.600 476.247 646.669 -3405.799 -2156.962 59.299 2000 488.785 841.600 493.895 695.411 -3386.104 -2091.743 54.631 2100 491.572 865.515 511.026 744.429 -3366.359 -2027.510 50.432 2200 494.425 888.449 527.663 793.728 -3346.557 -1964.217 46.636 2300 497.344 910.491 543.832 843.316 -3326.690 -1901.830 43.192 2400 500.328 931.721 559.554 893.199 -3507.788 -1836.032 39.960 2500 503.379 952.207 574.853 943.384 -3488.083 -1766.780 36.915 2600 506.495 972.010 589.750 993.877 -3468.163 -1698.320 34.120 2700 509.677 991.185 604.264 1044.685 -3448.023 -1630.630 31.546 2800 512.925 1009.779 618.417 1095.814 -3427.657 -1563.690 29.171 2900 516.239 1027.837 632.225 1147.275 -3407.059 -1497.485 26.973 3000 519.297 1045.390 645.706 1199.054 -3386.242 -1431.991 24.933