Experimental Determination of the NH<sub>4</sub>NO<sub>3</sub>/(NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>/H<sub>2</sub>O Phase Diagram
Jameson R. Bothe (1321209)Keith D. Beyer (1600855)
Abstract
We have studied the thermodynamic properties of the ammonium nitrate/ammonium sulfate/water system\nusing differential scanning calorimetry and infrared spectroscopy of thin films at low temperatures. This is\nthe first study focused on low temperatures, as previous experimental work on this system has been at 273\nK and above. We have combined our experimental results with melting point data from the literature at high\ntemperatures to create a solid/liquid phase diagram of the ammonium nitrate/ammonium sulfate/water system\nfor temperatures below 343 K. Using phase diagram theory and Alkemade lines, we predict which solids are\nstable at equilibrium for all concentrations within the studied region. We also observed the decomposition of\na solid at low temperatures which has not previously been reported. Finally, we have compared our predicted\nsolids and final melting temperatures to the Aerosol Inorganics Model (AIM).
Metrics
Topics
Related Documents
Experimental Determination of the H<sub>2</sub>SO<sub>4</sub>/(NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>/H<sub>2</sub>O Phase Diagram
Keith D. Beyer (1600855)Jameson R. Bothe (1321209)Nicola Burrmann (2508796)
Solubility of NH<sub>4</sub>VO<sub>3</sub> in NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>-H<sub>2</sub>O and (NH<sub>4</sub>)<sub>3</sub>PO<sub>4</sub>-H<sub>2</sub>O Systems
Xu-Li GONGChang-Qiao ZHANGPeng-Ge NINGHong-Bin CAOYi Zhang
Three-Dimensional Frameworks of Cubic (NH<sub>4</sub>)<sub>5</sub>Ga<sub>4</sub>SbS<sub>10</sub>, (NH<sub>4</sub>)<sub>4</sub>Ga<sub>4</sub>SbS<sub>9</sub>(OH)·H<sub>2</sub>O, and (NH<sub>4</sub>)<sub>3</sub>Ga<sub>4</sub>SbS<sub>9</sub>(OH<sub>2</sub>)·2H<sub>2</sub>O
Joshua L. Mertz (2333506)Nan Ding (710349)Mercouri G. Kanatzidis (1350288)
Structural Disorder and Molecular Dynamics in Ferroelectric\nCrystals [C(NH<sub>2</sub>)<sub>3</sub>]<sub>4</sub>Br<sub>2</sub>SO<sub>4</sub> and [C(NH<sub>2</sub>)<sub>3</sub>]<sub>4</sub>Cl<sub>2</sub>SO<sub>4</sub>
M. Szafrański (5745605)J. Wolak (5745608)M. Połomska (5745611)
Synthesis and Structure of 12-Member Ring\nCrown-Shaped Oxovanadium Borophosphate\nPolyanions: [H<sub>3</sub>NC<sub>2</sub>H<sub>4</sub>NH<sub>2</sub>C<sub>2</sub>H<sub>4</sub>NH<sub>2</sub>C<sub>2</sub>H<sub>4</sub>NH<sub>3</sub>]<sub>4</sub>H[M(VO)<sub>12</sub>{O<sub>3</sub>POB(O)<sub>2</sub>OPO<sub>3</sub>}<sub>6</sub>]·nH<sub>2</sub>O (M = NH<sub>4</sub><sup>+</sup>, K<sup>+</sup>)
Yongnan Zhao (1563448)Zhan Shi (704217)Shihai Ding (2956896)Ni Bai (1507129)Wang Liu (1683181)Yongcun Zou (1936804)Guangshan Zhu (1269648)Ping Zhang (86495)Zhenhong Mai (2956893)Wenqin Pang (2537944)