Synthesis, Characterization, Thermal Decomposition Mechanism and Non-Isothermal Kinetics of the Pyruvic Acid-Salicylhydrazone and Its Complex of Praseodymium (HE)

2010 ◽  
Vol 21 (2) ◽  
pp. 139-145
Author(s):  
He Shui-Yang ◽  
Liu Yu ◽  
Zhao Jian-She ◽  
Zhao Hong-An ◽  
Yang Rui ◽  
...  
2005 ◽  
Vol 488-489 ◽  
pp. 61-64 ◽  
Author(s):  
Xing Fu Song ◽  
Jin Wang ◽  
Xiang Tian Wang ◽  
Jian Guo Yu

Magnesium chloride hex-ammoniate (MgCl2·6NH3) is an intermediate to produce anhydrous magnesium chloride (MgCl2) by method of reaction crystallization. MgCl2·6NH3 is decomposed at 670K to produce anhydrous magnesium chloride. The process of thermal decomposition and its non-isothermal kinetics of MgCl2·6NH3 is studied. Results show that the thermal decomposition process is made up of three stages, the thermal decomposition functions and the thermal decomposition kinetics parameters, such as activation energy (E), pro-exponential factor (A) of MgCl2·6NH3 for each step are obtained by means of the Acher differential, the Coats-Redfern integral and multi-accelerated heating rate method. This study provides a valuable theoretical basis for MgCl2·6NH3 decomposition process on industrialization.


2020 ◽  
Vol 44 (17) ◽  
pp. 6833-6844
Author(s):  
Kuan Wang ◽  
Bing Xue ◽  
Jian-Gang Chen ◽  
Zhen-Hong He ◽  
Yueping Ji ◽  
...  

An overall decomposition mechanism of ammonium dinitramide was systematically investigated via DFT calculations and thermogravimetry-Fourier transform infrared-mass spectrometer (TG-FTIR-MS) techniques.


2004 ◽  
Vol 20 (01) ◽  
pp. 50-54 ◽  
Author(s):  
Xu Fen ◽  
◽  
Sun Li-Xian ◽  
Tan Zhi-Cheng ◽  
Liang Jian-Guo ◽  
...  

2019 ◽  
Author(s):  
Milad Narimani ◽  
Gabriel da Silva

Glyphosate (GP) is a widely used herbicide worldwide, yet accumulation of GP and its main byproduct, aminomethylphosphonic acid (AMPA), in soil and water has raised concerns about its potential effects to human health. Thermal treatment processes are one option for decontaminating material containing GP and AMPA, yet the thermal decomposition chemistry of these compounds remains poorly understood. Here, we have revealed the thermal decomposition mechanism of GP and AMPA by applying computational chemistry and reaction rate theory methods. <br>


Sign in / Sign up

Export Citation Format

Share Document