Used as a primary standard in titrimetric analysis for standardizing potassium permanganate solutions. It participates in redox titrations where oxalate ions are oxidized by permanganate in acidic medium, allowing precise determination of permanganate concentration. Due to its high purity and stability, it ensures accurate and reproducible results in volumetric analysis. Commonly applied in water quality testing, pharmaceutical analysis, and calibration of reagents in analytical laboratories.