Basic Information

Other Names: Amino Trimethylene Phosphonic Acid              

Molecular Formula:  N(CH2PO3H2 ) 3C

Molecular Weight: 299.05.02

CAS NO.: 6419-19-8

UN NO.:3261

EINECS NO.: 243-900-0

Purity: 99.5% min.

Physicochemical Properties

1.Appearence: White crystalline powder

2.PH : 1.5-2.0  (10g/l @25℃)

3.Flash point::Non flammable crystals

4.Water solubility: completely miscible

Technical Specifications

Name of IndexIndex
AppearanceWhite Crystal Powder
Active Content( as ATMP)%95.0 Min.
Phosphorous Acid (as PO33-)%2.0 Max.
Phosphorous Acid (as PO43-)%0.8 Max.
PH (1% water solution)2.0 Max.
Chlorides (as CL-) %1.0 Max.
Iron ppm20 Max.

Packaging Types

  ATMP liquid: Normally In 30kg or 250kg net Plastic Drum;

    ATMP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients request.


ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. in water system ,it can prevent scale formation, particularly for calcium carbonate. in water, ATMP has good chemical stability and is hard to be hydrolyzed. At high concentration, it has good corrosion inhibition.

ATMP can be used in thermal power plant, recirculated cooling water of oil refinery, and recycle waterflood system of oilfield.. 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, easily soluble in water, easy moisture absorption,

particularly suitable for using in winter and freezing districts. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent.

Transport Information

ADR/RID Class: 8

Packing Group: III

Storage: Storage for ten months in room shady and dry place.