<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Ammonium nitrate (AN) is considered to be a very hazardous and difficult to handle component of mineral fertilizers. Differential thermal analysis coupled with thermogravimetry and mass spectrometry was used to determine the possible inhibiting effect of selected magnesium compounds on thermal decomposition of AN. Each additive was mixed with AN to create samples with AN:magnesium compound mass ratios of 4:1, 9:1 and 49:1. Most of analyzed compounds enhanced thermal stability of ammonium nitrate, increasing the temperature of the beginning of exothermic decomposition and decreasing the amount of generated heat. Magnesium chloride hexahydrate was determined to accelerate the decomposition of AN while magnesium sulphate, sulphate heptahydrate, nitrate hexahydrate together with magnesite and dolomite minerals were defined as inhibiting agents.</p></abstract>

Ammonium nitrate (AN) is considered to be a very hazardous and difficult to handle component of mineral fertilizers. Differential thermal analysis coupled with thermogravimetry and mass spectrometry was used to determine the possible inhibiting effect of selected magnesium compounds on thermal decomposition of AN. Each additive was mixed with AN to create samples with AN:magnesium compound mass ratios of 4:1, 9:1 and 49:1. Most of analyzed compounds enhanced thermal stability of ammonium nitrate, increasing the temperature of the beginning of exothermic decomposition and decreasing the amount of generated heat. Magnesium chloride hexahydrate was determined to accelerate the decomposition of AN while magnesium sulphate, sulphate heptahydrate, nitrate hexahydrate together with magnesite and dolomite minerals were defined as inhibiting agents.

Selected magnesium compounds as possible inhibitors of ammonium nitrate decomposition

Wrocław University of Science and Technology

Department of Technology and Chemical Processes

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Ammonium nitrate (AN) is considered to be a very hazardous and difficult to handle component of mineral fertilizers. Differential thermal analysis coupled with...

Selected magnesium compounds as possible inhibitors of ammonium nitrate decomposition

Published Online: May 13, 2020

Page range: 1 - 8

DOI: https://doi.org/10.2478/pjct-2020-0011

Keywords
ammonium nitrate, thermal analysis, magnesium compounds, exothermic decomposition, phase transition

© 2020 Józef Hoffmann et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Selected magnesium compounds as possible inhibitors of ammonium nitrate decomposition

Published Online: May 13, 2020

Page range: 1 - 8

DOI: https://doi.org/10.2478/pjct-2020-0011

Keywordsammonium nitrate, thermal analysis, magnesium compounds, exothermic decomposition, phase transition

© 2020 Józef Hoffmann et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
ammonium nitrate, thermal analysis, magnesium compounds, exothermic decomposition, phase transition