ISSN:
1434-4475
Keywords:
Highly concentrated nitric acid
;
Thermal decomposition
;
Kinetics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The thermal decomposition of highly concentrated nitric acid was observed at atmospheric pressure between 0 and 60 °C for up to 273 d. The decomposition of highly concentrated nitric acid $$2 HNO_3 \rightleftharpoons 2 NO_2 + H_2 O + {1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-\nulldelimiterspace} 2} O_2 $$ is a second order reaction in nitric acid. The reversible reaction proceeds to equilibrium. The velocity and equilibrium constants were obtained by kinetic evaluation of the readings for HNO3 and NO2. The activation energy for decomposition was — 134 kJ/mol.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00816863
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