Combined Experimental and Computational Hydrostatic Compression Study of Crystalline Ammonium Perchlorate

Combined experimental and computational NMR study of crystalline and amorphous zeolitic imidazolate frameworks.

Zeolitic imidazolate frameworks (ZIFs) have attracted great interest in recent years due to their high chemical and thermal stability with promising applications in gas storage and separations. We investigate the structures of three different crystalline ZIFs - ZIF-4, ZIF-8, ZIF-zni - and their amorphous counterparts using high field (13)C and (15)N CP MAS NMR. The high field (20 T) allows for ...

Ammonium Perchlorate and Ammonium Perchlorate - Binder Sandwich Combustion

Combustion Response of Ammonium Perchlorate

AmodiŽ ed Price–Boggs–Derr model is applied to compute the linear and nonlinear combustion response properties of monopropellant ammonium perchlorate (AP). The kinetics constants were changed to achieve good agreement with response function data as well as with steady-state data. The numerical method was Ž rst validated with the classical theory. Computations using the Levine and Culick boundar...

Aluminum Magnesium Potassium Ammonium Sodium Lithium Producer perchlorate perchlorate perchlorate perchlorate perchlorate perchlorate

Commercial interest in perchlorates began in the late 1890s/early 1900s in Europe and the United States as a direct result of the pioneering efforts in rockets and their propulsion systems (Mendiratta et al. 1996). The production of ammonium perchlorate, the largest component of solid rocket propellants, far outpaced that of the other perchlorates listed in Table 4-1. Their commercial manufactu...

The Role of Boron in Thermal Decomposition of Ammonium Perchlorate

Simultaneous thermal analysis (STA) method has been applied to study decomposition reactions of AP under a flowing nitrogen atmosphere and static air. Results obtained indicate that a phase transformation occurs prior to the decomposition reaction. Decomposition takes place exothermally in two stages, first stage of decomposition could be suppressed by the controlled heating programme. Addi...