中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 7 No. 3 September 1997 |
（1.Shanghai Institute of Metallurgy; Chinese Academy of Sciences; Shanghai 200050 ;
2.Department of Chemistry; Central South University of Technology; Changsha 410083）
Abstract:Of the following five reactions, the enthalpy changes of the first three reactions were calorimetrically determined, respectively. Combination of these results with the values from literature led to the recommended values of the enthalpy changes of the five reactions as follows:
Al(OH)3(s)=(1/2) γ Al2O3(s)+(3/2)H2O(g) 101.89±1.20 kJ·mol -1
γ AlOOH(s)=(1/2) γAl2O3 (s)+(1/2)H 2O(g) 46.60±1.00 kJ·mol -1
γ Al 2O 3(s)= αAl2O3 (s) Al(OH)3 (s)=γ -18.53±1.00 kJ·mol -1
AlOOH(s)+H 2O(g) Al(OH)3 (s)=(1/2) α 55.29±1.20 kJ·mol -1
Al2O3 (s)+(3/2)H2O(g) 83.36±1.20 kJ·mol -1
Key words: Al(OH) 3 thermal decomposition thermodynamics
