过氧化钙制备实验中氨水的用量分析

钱林平,李进之,郑耿锋,沈建中

Investigation of Ammonia Usage in the Experiments of Calcium Peroxide Preparation

Linping QIAN,Jinzhi LI,Gengfeng ZHENG,Jianzhong SHEN

表1 CaCl2与H2O2反应的热力学参数

T/K ΔH/(kJ·mol-1) ΔS/(kJ·mol-1) ΔG/(kJ·mol-1) K? 273 62.2 -34.1 71.7 1.18 × 10-14 373 73.3 0.2 73.3 3.78 × 10-11 473 90.6 40.5 71.4 9.78 × 10-9 573 128.1 111.7 64.2 1.15 × 10-6 673 203.9 232.5 47.5 1.82 × 10-4 773 337.4 416.3 15.6 8.54 × 10-2 873 548.4 672.1 -38.2 2.10 × 102 973 857.8 1006.5 -121.5 4.19 × 106 1073 1285.9 1424.2 -242.3 9.50 × 1011 1173 1854 1928.7 -409.2 3.19 × 1018 1273 2581.2 2523 -631 1.97 × 1026