Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
Salts of Phosphonates
Polycarboxylic antiscalant and dispersant
Biodegradable antiscalant and dispersant
Bactericide and Algicide
Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
Corrosion Inhibitor
Reverse Osmosis Chemicals
Oxygen Scavenger
New Product

TEL: +86-632-5366998

FAX: +86-632-5366900


ADD: Lunan high-tech Chemical Industrial Park
Tengzhou, Zaozhuang , Shandong ,China

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

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 ofATMP, 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 10.0 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.