• Description

Chemical Family :water treatment chemicals

Product Name :ATMP.4Na

Chemical Name : [nitrilotris(methylene)]trisphosphonic acid, sodium salt

CAS No : 20592-85-2

Details :

Sodium amino-tris(methylenesulphonate) (ATMPNa4)
CAS No. 20592-85-2
Molecular Formula:C3H8NO9P3Na4


Tetra sodium salt of Amino Trimethylene Phosphonic Acid (ATMPNa4)


ATMPNa4 is the salt of ATMP, it can inhibit the scale formation, calcium carbonate in particular, in water system. ATMPNa4 can be used in circulating cool system in power plant, oil refinery plant and oilfield refill water system. ATMPNa4 has good synergistic effects with other additives, in neutral to acidic condition, no ammonia smell is let off.


items index
Appearance Colorless or light yellow transparent liquid
Active content (ATMP)% 29.4-32.4
Active content (ATMP.Na4) % 38.0-42.0
PH (1% water solution) 6.5-7.5
Fe(Fe3+)ppm 35 max
Density (20°C) g/cm3 1.35-1.45


ATMP.Na4 is used together with other organophosphonic acid, polycarboxylic acid or salt to form organic alkaline agents, it is used in circulating cool water system for all water quality.

Package and Storage:

Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for ten months in room shady and dry place.

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