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

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 pvalue 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. [ABSTRACT FROM AUTHOR]