THERMOGRAVIMETRY OF THE DEHYDRATION OF Mg(OH)2
THERMOGRAVIMETRY OF THE DEHYDRATION OF Mg(OH)2
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DOI：
10.1139/v63-039
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发表时间：
1963-02
影响因子：
1.1
通讯作者：
R. Turner;I. Hoffman;D. Chen
中科院分区：
文献类型：
--
作者：
R. Turner;I. Hoffman;D. Chen
测定了几种氢氧化镁制剂的脱水DTG曲线。由这些曲线推导出计算活化能和速率常数所需的方程式是基于脱水的三分之二级过程。结果表明，天然镁的活化能比沉淀氢氧化镁的活化能大约5千卡。这意味着两种制剂的能级不同，因此它们的表观溶解度积也不同。四种不同制备的氢氧化镁的DTG曲线的差异表明氢氧化镁的一系列能级的可能性。
The DTG curves for the dehydration of a number of preparations of Mg(OH)2 were determined. Equations necessary to calculate energies of activation and rate constants from these curves were derived on the basis of a two-thirds-order process for dehydration. It was found that the energy of activation was about 5 kcal greater for naturally occurring than for precipitated Mg(OH)2. This was interpreted to mean that there was a difference in the energy levels of the two preparations, and therefore a difference in their apparent solubility products. Differences obtained in the DTG curves for four different preparations of Mg(OH)2 indicated the probability of a series of energy levels for Mg(OH)2.