Used in water softening and demineralization processes, particularly for removing hardness ions like calcium and magnesium from industrial water systems. Effective in continuous ion exchange and chromatographic separation due to its macroporous structure and mechanical stability. Commonly applied in food and beverage production for decolorization and purification, especially in sugar processing. Also utilized in metal recovery and wastewater treatment for selective cation removal. Its weak acid nature allows high regeneration efficiency with low acid consumption. Suitable for both industrial and laboratory-scale purification systems.