Product Details


ATMP•Na4(Tetra Sodium Salt of Amino Trimethylene Phosphonic Acid)

ATMP•Na4(Tetra Sodium Salt of Amino Trimethylene Phosphonic Acid) is a colorless to light yellow liquid soluble in water. This product can be used as a corrosion inhibitor, scale inhibitor, and detergent builder in industrial circulating excellent water systems, boiler feed water, textile mills effluent treatment system, food & beverage processing plants, dyeing houses, and paper mills. It meets the requirements of FCC (Food Chemical Codex), EEC (European Economic Community), JIS (Japanese Industrial Standard), and GB (Chinese National Standard). Welcome to contact us for more information.

Product Description

CAS No.  20592-85-2

Molecular Formula: C3H8NO9P3Na4

Molecular weight: 387

Structural Formula:


ATMP•Na4 Properties:

ATMP•Na4 is the salt of ATMP and an effective calcium carbonate inhibitor in water systems. It can be used for circulating cooling systems in power plants, oil refinery plants, and oilfield refill water systems due to its sound synergistic effects with other additives. Additionally, under neutral to acidic conditions, no ammonia smell is released.


AppearanceColorless 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,mg/L     ≤35
Density (20℃) g/cm31.35-1.45

ATMP•Na4 Usage:

ATMP•Na4 can be combined with another organophosphorus acid, polycarboxylic acid, and salt to create organic alkaline agents, providing suitable water quality for circulating excellent water systems. It is effective in all types of applications.

Package and Storage:

200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in a shady room and dry place.

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