Tetra Sodium Salt of Aminotri (Methylene Phosphonic Acid)
(Passed REACH Pre-registration)
CAS Number: 20592-85-2
Molecular Formula: C3H8NO9P3Na4
Molecular Weight: 387
ATMP.4Na is the salt of ATMP, it can inhibit the scale formation, calcium carbonate in particular, in water system. ATMP.4Na can be used in circulating cool system in power plant, oil refinery plant and oilfield refill water system. ATMP.4Na has good synergistic effects with other additives, in neutral to acidic condition; no ammonia smell is let off.
ATMP.4Na 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.
Water white to pale yellow liquid
Active Acid (%)
29.4 - 32.4
Active Salt (%)
38.0 - 42.0
6.5 - 7.5
Density at 20°C, g/cm3
Iron, as Fe (ppm)
Package and Storage:
Normally in 200L HDPE drum and 1000L IBC.
Storage for 12 months in room shady and dry place.
Avoid contact with eye and skin, once contacted, flush with plenty water.