StructureAminotris (methylene phosphonic acid) sodium salt (ATMP Na)
CAS No. 20592-85-2
EC No. 243-900-0
Synonyms Penta sodium salt of Amino Trimethylene Phosphonic Acid; Amino Trimethylenephosphonic Acid x-Sodium Salt; [nitrilotris(methylene)]trisphosphonic acid, sodium salt; ATMP XNa

Aminotris (methylene phosphonic acid) sodium salt (ATMP Na)

​Aminotris (Methylene Phosphonic Acid) pentasodium salt (ATMP 5Na) is an effective scale inhibitor used in various industrial applications such as industrial water treatment and detergents. It further shows good corrosion inhibition properties in presence of zinc and other phosphates. ATMP can be also used as chelating agent in the textile industry.


  • Cooling water systems / industrial water treatment
  • Industrial detergents
  • Sequestering agent in textile auxiliaries

Shelf Life

Under proper storage conditions, the shelf life is 12 months

Health & Safety

Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet)