Thermodynamic Analysis and Kinetics of Etching of Thin PbS Films in Hydrochloric Acid Solutions

S. S. Tulenin; D. A. Novotorkina; M. S. Rogovoy; K. A. Karpov; A. V. Pozdin; L. N. Maskaeva; V. F. Markov

doi:10.1134/S1070427218030023

Thermodynamic Analysis and Kinetics of Etching of Thin PbS Films in Hydrochloric Acid Solutions

Authors: Tulenin S.S.¹, Novotorkina D.A.¹, Rogovoy M.S.¹, Karpov K.A.¹, Pozdin A.V.¹, Maskaeva L.N.¹^,2, Markov V.F.¹^,2
Affiliations:
1. Ural Federal University named after the first president of Russia B.N. Yeltsin
2. Ural Institute of State Fire Service, EMERCOM of Russia
Issue: Vol 91, No 3 (2018)
Pages: 360-367
Section: Inorganic Synthesis and Industrial Inorganic Chemistry
URL: https://journals.rcsi.science/1070-4272/article/view/215699
DOI: https://doi.org/10.1134/S1070427218030023
ID: 215699

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Abstract

A hydrochloric acid solution of hydrogen peroxide was suggested for etching lead sulfide films. The solubility of lead sulfide in relation to the hydrochloric acid concentration in the etching solution was calculated using thermodynamic analysis, taking into account the stability of lead complex species. The kinetics of hydrogen peroxide decomposition in the hydrochloric acid solution was studied, and the formal rate equation of the process was constructed.