Alternative methods to quantify chloride ions as a variant to NC-ISO 2481

Authors

  • María de los Ángeles Arada Pérez Universidad de Oriente. Patricio Lumumba s/n, Santiago de Cuba, Cuba
  • Natacha Sarmiento Rodríguez Universidad de Oriente. Patricio Lumumba s/n, Santiago de Cuba, Cuba
  • Karel Yasmany Nápoles Florián UEB Laboratorio Geominera Oriente, Santiago de Cuba, Cuba
  • Leandro León Duharte Universidad de Oriente. Patricio Lumumba s/n, Santiago de Cuba, Cuba

Keywords:

NaCl comercial, AgNO3; determinación de haluros; métodos alternativos.

Abstract

In this work, the volumetric, conductometric and potentiometric methods for the determination of Cl- ions in commercial NaCl samples were compared with the method established in NC-ISO 2481. Hg(NO3)2 was replaced by AgNO3 as the titrant in the
normalized method. The percentage of halogens expressed as Cl-, NaCl, and I- were determined. The analysis performance parameters sensitivity, and repeatability were evaluated as precision and truthfulness criteria. One way Anova as carried out, where the Cochran C test was applied to verify the homogeneity of variance, with the p-Value = 0,82, which indicated the equality of the homogeneity of the same. The p-value show in ANOVA table is 0,99, and it was confirmed that there are no significant
statistical differences between the means of the calculated percentage of NaCl.

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Published

2023-12-18

How to Cite

Arada Pérez, M. de los Ángeles, Sarmiento Rodríguez, N., Nápoles Florián, K. Y., & León Duharte, L. (2023). Alternative methods to quantify chloride ions as a variant to NC-ISO 2481. Revista Cubana De Química, 35(3), 433–449. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/5348

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