Amino Trimethylene Phosphonic Acid (ATMP)
Tel: +86-632-5113066
Fax: +86-632-5112055

Contacted person:
ADD:  Xiwangzhuang town, Shizhong district, Zaozhuang city, Shandong Province, P. R. China

Tetra sodium salt of Amino Trimethylene
Phosphonic Acid

CAS No.  20592-85-2

Molecular Formula:   C3H8NO9P3Na4       Molecular weight: 387

Structural Formula:

Tetra sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na4)


ATMP•Na4 is the salt of ATMP, it can inhibit the scale formation, calcium carbonate in particular, in water system. ATMP•Na4 can be used in circulating cool system in power plant, oil refinery plant and oilfield refill water system. ATMP•Na4 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,mg/L 35 max
Density (20℃) 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:

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

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