Producción Científica Profesorado

Thermodynamic study of Iridium in HCl: The effect of concentration



Reyes Cruz, Victor Esteban

2014

Serrano López Sixto Sael, Reyes Cruz Víctor Esteban,Rios Reyes Clara Hilda and Veloz Rodríguez María Aurora(2014) Thermodynamic study of Iridium in HCl: The effect of concentration, Advanced Materials Research Vol. 976 pp 179-183 Trans Tech Publications, Switzerland


Abstract


In this work, the dissolution of iridium was studied through a thermodynamic theoretic study withdifferent concentrations of hydrochloric acid (HCl) and Iridium (Ir). Three different acid conditionsand three different concentrations of iridium were analyzed: 1, 0.1 and 0.01 M HCl and 0.86, 0.021and 0.002 M of iridium. The system 1 M HCl was the only one that presented soluble species of Ir.Results showed that as the Ir concentration diminished from 0.86 to 0.002 M, the pH range where itis possible to obtain Ir soluble species, increased (from 0-1.2 to 0-2). The presence of two Ir species(valences III and IV) for 0.021M and 0.002 M Ir concentrations was determined from the Pourbaixdiagrams; while for the 0.086 M concentration, only the Ir (IV) species was observed. The Pourbaixdiagrams showed that it is possible to obtain the species iridium (IV) from a potential range of0.823 V vs SHE to 1.422 V vs SHE and at a pH between 0 and 1.2 in the 1 M HC1 solution.



Producto de Investigación




Artículos relacionados

Electrorecuperación de Ag+ sobre Ti en un reactor electroquímico filtro prensa (ER01-FP)

Silver Recovery from Radiographic Films Using an Electrochemical Reactor

Comparación electroquímica de compuestos quirales tipo imina

Síntesis de nanocompositos de ZrO2 nanotubos de carbono- Mo

Purificación del Caolín por Electrolisis

Evaluación del comportamiento de un acero al carbono utilizado en tuberías para agua potable mediant...

Galvanic interactions between galenasphalerite and their reactivity

Recuperación de plata proveniente de placas radiográficas utilizando un reactor electroquímico tipo ...

Mecanosíntesis: síntesis en estado sólido de compuestos orgánicos nitrogenados de tipo imina

Influencia del flujo en la macroelectrólisis de la recuperación de plata proveniente de efluentes ra...