Trisodium aminotris(methylenephosphonate)

Trisodium aminotris(methylenephosphonate) (CAS 7611-50-9), the trisodium salt form of ATMP, is a phosphonate chelating agent used in water treatment and industrial cleaning.

Where is Trisodium aminotris(methylenephosphonate) used?

• Industrial water treatment: dosed into cooling water circuits
• Boiler systems: prevents calcium carbonate and calcium sulfate scale on heat exchange surfaces
• Cleaning and detergent formulations: sequesters hardness ions, improving surfactant performance and preventing soil redeposition
• Textile processing: stabilizes peroxide bleach baths by chelating trace metal ions that would catalyze premature decomposition
• Paper and leather processing: controls metal ion interference during bleaching and tanning
• It controls scale deposition and inhibits corrosion by sequestering calcium, magnesium, and heavy metal ions in aqueous systems.

Commercial specifications

• Aqueous solution, typically around 40–50% active content
• Packaging: drums and IBC totes for bulk procurement