Amino Tri (Methylene Phosphonic Acid)
(Certified by NSF STANDARD 60 and Passed REACH Registration)
CAS Number: 6419-19-8
Molecular Formula: C3H12NO9P3
Molecular Weight: 299.05
ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation, calcium carbonate in particular, in water system. ATMP has good chemical stability and is hard to be hydrolyzed in water system. At high concentration, it has good corrosion inhibition.
ATMP is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant and oil refinery plant. ATMP can decrease scale formation and inhibit corrosion of metal equipment and pipeline. ATMP can be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.
The solid state of ATMP is crystal powder, soluble in water, easily deliquescence, suitable for usage in winter and freezing districts. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent.
Water white to pale yellow liquid
White crystalline powder
Active Acid (%)
48.0 - 52.0
48.0 - 52.0
Phosphorous acid as PO33- (%)
Phosphoric acid as PO43- (%)
Chloride (as Cl-, %)
Specific Gravity @20/20°C
1.28 – 1.38
Iron, as Fe (ppm)
Ammonia content (ppm)
Package and Storage:
ATMP Liquid: normally in 200L HDPE drum 1000L IBC and ISO TANK.
ATMP Powder: 25kg inner liner polyethylene (PE) bag and 1000kg woven bag ,
Storage for 12 months in room shady and dry place.
Acidity, avoid contact with eye and skin, once contacted, flush with plenty water.