Sodium Silicate (Na2Si2O5) | Na2O5Si2(cr,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 | 0. | 0. | INFINITE | -26.430 | -2455.459 | -2455.459 | INFINITE | |||||||
100 | 66.906 | 42.058 | 279.416 | -23.736 | -2463.238 | -2418.587 | 1263.340 | |||||||
200 | 124.081 | 107.976 | 177.452 | -13.895 | -2467.943 | -2371.851 | 619.464 | |||||||
298.15 | 156.984 | 164.055 | 164.055 | 0. | -2470.066 | -2324.163 | 407.184 | |||||||
300 | 157.494 | 165.027 | 164.058 | 0.291 | -2470.090 | -2323.258 | 404.515 | |||||||
400 | 183.401 | 214.007 | 170.560 | 17.379 | -2475.916 | -2273.781 | 296.925 | |||||||
500 | 203.246 | 257.178 | 183.653 | 36.762 | -2474.938 | -2223.325 | 232.269 | |||||||
600 | 217.576 | 295.572 | 199.168 | 57.843 | -2472.541 | -2173.208 | 189.195 | |||||||
700 | 227.840 | 329.925 | 215.438 | 80.141 | -2469.179 | -2123.575 | 158.463 | |||||||
800 | 235.162 | 360.855 | 231.715 | 103.312 | -2465.186 | -2074.470 | 135.449 | |||||||
900 | 240.325 | 388.869 | 247.645 | 127.102 | -2460.809 | -2025.890 | 117.580 | |||||||
951.000 | 242.313 | 402.170 | 255.578 | 139.409 | I <--> II | |||||||||
951.000 | 242.316 | 402.610 | 255.578 | 139.828 | TRANSITION | |||||||||
980.000 | 243.275 | 409.903 | 260.037 | 146.869 | II <--> III | |||||||||
980.000 | 292.880 | 410.544 | 260.037 | 147.497 | TRANSITION | |||||||||
1000 | 292.880 | 416.461 | 263.107 | 153.354 | -2454.208 | -1977.854 | 103.312 | |||||||
1100 | 292.880 | 444.375 | 278.337 | 182.642 | -2444.821 | -1930.674 | 91.680 | |||||||
1147.000 | 292.880 | 456.629 | 285.393 | 196.408 | III <--> LIQUID | |||||||||
1147.000 | 261.207 | 487.635 | 285.393 | 231.972 | TRANSITION | |||||||||
1200 | 261.207 | 499.434 | 294.588 | 245.816 | -2595.338 | -1881.064 | 81.881 | |||||||
1300 | 261.207 | 520.342 | 311.160 | 271.936 | -2587.813 | -1821.847 | 73.203 | |||||||
1400 | 261.207 | 539.700 | 326.802 | 298.057 | -2580.448 | -1763.204 | 65.786 | |||||||
1500 | 261.207 | 557.721 | 341.603 | 324.178 | -2573.236 | -1705.082 | 59.376 | |||||||
1600 | 261.207 | 574.579 | 355.643 | 350.298 | -2566.173 | -1647.437 | 53.783 | |||||||
1700 | 261.207 | 590.415 | 368.992 | 376.419 | -2659.609 | -1589.334 | 48.834 | |||||||
1800 | 261.207 | 605.345 | 381.712 | 402.540 | -2652.376 | -1526.587 | 44.300 | |||||||
1900 | 261.207 | 619.468 | 393.857 | 428.661 | -2645.202 | -1464.239 | 40.255 | |||||||
2000 | 261.207 | 632.866 | 405.475 | 454.781 | -2638.086 | -1402.267 | 36.623 | |||||||
2100 | 261.207 | 645.610 | 416.609 | 480.902 | -2631.031 | -1340.650 | 33.347 | |||||||
2200 | 261.207 | 657.761 | 427.297 | 507.023 | -2624.035 | -1279.366 | 30.376 | |||||||
2300 | 261.207 | 669.373 | 437.571 | 533.143 | -2617.098 | -1218.401 | 27.671 | |||||||
2400 | 261.207 | 680.489 | 447.463 | 559.264 | -2610.223 | -1157.736 | 25.197 | |||||||
2500 | 261.207 | 691.152 | 456.999 | 585.385 | -2603.410 | -1097.356 | 22.928 | |||||||
PREVIOUS: | CURRENT: September 1967 | |||||||||||||
Sodium Silicate (Na2Si2O5) | Na2O5Si2(cr,l) |
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