Sodium Borate (Na2B4O7) | B4Na2O7(l) | |||||||||||||
Enthalpy Reference Temperature = Tr = 298.15 K | Standard State Pressure = p° = 0.1 MPa | |||||||||||||
J·K-1 mol-1 | kJ·mol-1 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
T/K | Cp° | S° | -[G°-H°(Tr)]/T | H-H°(Tr) | ![]() |
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log Kf | |||||||
0 | ||||||||||||||
100 | ||||||||||||||
200 | ||||||||||||||
298.15 | 187.443 | 194.636 | 194.636 | 0. | -3256.658 | -3062.973 | 536.620 | |||||||
300 | 188.141 | 195.798 | 194.640 | 0.347 | -3256.690 | -3061.771 | 533.102 | |||||||
400 | 221.752 | 254.719 | 202.445 | 20.909 | -3263.220 | -2996.176 | 391.260 | |||||||
500 | 247.274 | 307.021 | 218.230 | 44.396 | -3263.566 | -2929.350 | 306.027 | |||||||
600 | 268.613 | 353.997 | 237.008 | 70.194 | -3262.784 | -2862.562 | 249.208 | |||||||
700 | 289.533 | 396.980 | 256.831 | 98.104 | -3260.789 | -2795.998 | 208.640 | |||||||
743.010 | 298.402 | 414.507 | 265.454 | 110.748 | GLASS <--> LIQUID | |||||||||
743.010 | 444.885 | 414.507 | 265.454 | 110.748 | TRANSITION | |||||||||
800 | 444.885 | 447.385 | 277.257 | 136.102 | -3249.420 | -2730.116 | 178.258 | |||||||
900 | 444.885 | 499.785 | 299.129 | 180.591 | -3232.152 | -2666.246 | 154.745 | |||||||
1000 | 444.885 | 546.658 | 321.579 | 225.079 | -3215.404 | -2604.270 | 136.033 | |||||||
1015.600 | 444.885 | 553.544 | 325.089 | 232.019 | CRYSTAL <--> LIQUID | |||||||||
1100 | 444.885 | 589.060 | 343.999 | 269.567 | 3199.134 2543.947 121.802 | |||||||||
1200 | 444.885 | 627.770 | 366.057 | 314.056 | -3376.842 | -2480.207 | 107.961 | |||||||
1300 | 444.885 | 663.380 | 387.577 | 358.544 | -3359.618 | -2406.188 | 96.682 | |||||||
1400 | 444.885 | 696.350 | 408.469 | 403.033 | -3342.693 | -2333.483 | 87.063 | |||||||
1500 | 444.885 | 727.043 | 428.696 | 447.521 | -3326.043 | -2261.980 | 78.769 | |||||||
1600 | 444.885 | 755.756 | 448.249 | 492.010 | -3309.653 | -2191.579 | 71.548 | |||||||
1700 | 444.885 | 782.727 | 467.139 | 536.498 | -3293.508 | -2122.194 | 65.207 | |||||||
1800 | 444.885 | 808.156 | 485.385 | 580.987 | -3277.602 | -2053.755 | 59.598 | |||||||
1900 | 444.885 | 832.209 | 503.012 | 625.475 | -3261.926 | -1986.192 | 54.604 | |||||||
2000 | 444.885 | 855.029 | 520.047 | 669.964 | -3246.476 | -1919.448 | 50.131 | |||||||
2100 | 444.885 | 876.735 | 536.519 | 714.452 | -3231.250 | -1853.472 | 46.103 | |||||||
2200 | 444.885 | 897.431 | 552.458 | 758.941 | -3216.243 | -1788.214 | 42.458 | |||||||
2300 | 444.885 | 917.207 | 567.890 | 803.429 | -3201.454 | -1723.637 | 39.145 | |||||||
2400 | 444.885 | 936.141 | 582.842 | 847.918 | -3387.918 | -1655.423 | 36.029 | |||||||
2500 | 444.885 | 954.302 | 597.340 | 892.406 | -3373.872 | -1583.525 | 33.086 | |||||||
2600 | 444.885 | 971.751 | 611.407 | 936.895 | -3359.910 | -1512.187 | 30.380 | |||||||
2700 | 444.885 | 988.541 | 625.066 | 981.383 | -3346.033 | -1441.383 | 27.885 | |||||||
2800 | 444.885 | 1004.720 | 638.337 | 1025.872 | -3332.239 | -1371.092 | 25.578 | |||||||
2900 | 444.885 | 1020.332 | 651.242 | 1070.360 | -3318.532 | -1301.296 | 23.439 | |||||||
3000 | 444.885 | 1035.414 | 663.798 | 1114.848 | -3304.911 | -1231.967 | 21.450 | |||||||
PREVIOUS: March 1963 | CURRENT: March 1965 | |||||||||||||
Sodium Borate (Na2B4O7) | B4Na2O7(l) |
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