Boron, Beta-Rhombohedral (B) B1(cr) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 0. 0. INFINITE -1.214 0. 0. 0. 100 1.076 0.308 12.207 -1.190 0. 0. 0. 200 5.998 2.419 6.704 -0.857 0. 0. 0. 250 8.821 4.063 6.007 -0.486 0. 0. 0. 298.15 11.315 5.834 5.834 0. 0. 0. 0. 300 11.405 5.904 5.834 0.021 0. 0. 0. 350 13.654 7.834 5.981 0.648 0. 0. 0. 400 15.693 9.794 6.335 1.384 0. 0. 0. 450 17.361 11.742 6.828 2.211 0. 0. 0. 500 18.722 13.644 7.415 3.115 0. 0. 0. 600 20.778 17.251 8.758 5.096 0. 0. 0. 700 22.249 20.570 10.212 7.251 0. 0. 0. 800 23.361 23.617 11.699 9.534 0. 0. 0. 900 24.245 26.421 13.181 11.915 0. 0. 0. 1000 24.978 29.014 14.637 14.378 0. 0. 0. 1100 25.606 31.425 16.055 16.908 0. 0. 0. 1200 26.161 33.677 17.430 19.496 0. 0. 0. 1300 26.663 35.792 18.762 22.138 0. 0. 0. 1400 27.125 37.785 20.051 24.828 0. 0. 0. 1500 27.557 39.671 21.296 27.562 0. 0. 0. 1600 27.966 41.463 22.501 30.338 0. 0. 0. 1700 28.356 43.170 23.667 33.155 0. 0. 0. 1800 28.732 44.801 24.796 36.009 0. 0. 0. 1900 29.097 46.365 25.891 38.901 0. 0. 0. 2000 29.452 47.866 26.952 41.828 0. 0. 0. 2100 29.799 49.312 27.983 44.791 0. 0. 0. 2200 30.140 50.706 28.984 47.788 0. 0. 0. 2300 30.475 52.053 29.958 50.819 0. 0. 0. 2350.000 30.641 52.710 30.435 52.346 BETA <--> LIQUID 2400 30.806 53.357 30.906 53.883 50.259 1.069 0.023 2500 31.133 54.621 31.829 56.980 -50.337 3.209 -0.067 2600 31.457 55.848 32.730 60.109 -50.383 5.352 -0.108 2700 31.778 57.042 33.608 63.271 -50.396 7.496 -0.145 2800 32.096 58.203 34.466 66.465 -50.377 9.640 -0.180