Reciprocal salt system

{
  "id": "MLC-T-CHM-010014",
  "term": "Reciprocal salt system",
  "field": "Chemistry",
  "definition": "A system in which at least two kinds of cation and two kinds of anion are present together, for example Na+, K+, Cl- and Br- in water, so that the four salts NaCl, KBr, NaBr and KCl are related by exchange reactions. In such a system a pair of salts with no common ion reacts by exchanging ions to give the other pair. Because of electrical neutrality, a system of n ionic species has n components in water as the single solvent and n minus 1 components when molten.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 260 (https://doi.org/10.1351/pac200880020233)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/reciprocal-salt-system/"
}