Nickel Sulfide (NiS2) Ni1S2(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 70.626 122.427 122.427 0. -66.568 -75.048 13.148 300 70.664 122.864 122.428 0.131 -66.569 -75.101 13.076 400 72.739 143.477 125.225 7.301 -71.321 -77.733 10.151 500 74.814 159.931 130.574 14.678 -74.767 -78.963 8.249 600 76.889 173.754 136.648 22.264 -77.629 -79.524 6.923 700 78.965 185.763 142.825 30.056 -79.853 -79.647 5.943 800 81.040 196.443 148.872 38.057 -81.362 -79.511 5.192 900 83.115 206.108 154.703 46.264 -188.797 -77.044 4.471 960.000 84.360 211.511 158.086 51.289 GLASS <--> LIQUID 960.000 91.002 211.511 158.086 51.289 TRANSITION 1000 91.002 215.226 160.298 54.929 -187.034 -64.712 3.380 1100 91.002 223.900 165.692 64.029 -184.934 -52.582 2.497 1200 91.002 231.818 170.877 73.129 -182.937 -40.639 1.769 1280.000 91.002 237.691 174.871 80.409 CRYSTAL <--> LIQUID 1300 91.002 239.102 175.849 82.229 181.052 28.858 1.160 1400 91.002 245.846 180.611 91.329 -179.283 -17.218 0.642 1500 91.002 252.124 185.171 100.430 -177.635 -5.700 0.199 1600 91.002 257.998 189.541 109.530 -176.111 5.712 -0.186 1700 91.002 263.515 193.732 118.630 -174.715 17.032 -0.523 1800 91.002 268.716 197.755 127.730 -190.600 28.989 -0.841