Monosodium etidronate

Monosodium etidronate (CAS 29329-71-3 ), the monosodium salt form of HEDP, is a phosphonate-based chelating agent used across industrial and personal care applications. It controls metal ion activity in formulations and process fluids, preventing scale formation, discoloration, and corrosion.

In personal care formulations such as shampoos, cleansers, and skin care products, it sequesters calcium and magnesium ions that would otherwise reduce surfactant performance and cause residue buildup.

Water treatment programs rely on it to inhibit calcium carbonate and calcium phosphate scale in cooling towers, boilers, and process water circuits. This ensures the longevity and efficiency of industrial equipment.

In textile and paper processing, it prevents metal-catalyzed degradation of bleaching baths and dye liquors, protecting product consistency. This is vital for maintaining high-quality standards in manufacturing.

Oil and gas operators use it as a corrosion inhibitor and scale suppressant in injection water and pipeline systems. This chemical helps maintain the integrity of infrastructure in harsh environments.

Monosodium etidronate is supplied as an aqueous solution, with active content concentrations typically in the range of 30–40%. Technical grade is the standard offering for industrial water treatment and oilfield applications.

Personal care grades with tighter purity specifications are available for formulators requiring compliance with cosmetic ingredient standards. These products meet rigorous safety and quality benchmarks for consumer use.

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