KCl is a chemical standard solution prepared with Potassium Chloride dissolved in distilled water, formulated at precise concentrations specific for certain conductivity and electric resistance ranges. Used as a standard in international standards such as NIST. It is used mainly for the calibration and verification of conductivity meters, ensuring accurate conductivity measurements under controlled and industrial conditions.
Applications
Reference solution concentrated for pH and electrochemical electrodes, providing greater stability and lower degradation risk.
Electrode maintenance during storage to preserve ionic strength.
Saturated solution used as a more concentrated electrolyte than 3.0 M KCl to improve conductivity.
Reduction of electrode potential in potentiometric measurements.
Electrode storage to prevent contamination, dehydration, and gradient formation.