Amino Trimethylene Phosphonic Acid (ATMP)

CAS No.: 6419-19-8

Molecular Formula: N(CH2PO3H2)3

Molecular weight: 299.05

Structural Formula:

Amino Trimethylene Phosphonic Acid

Properties:

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

ATMP is used in industrial circulating cool water systems and oilfield water pipelines in fields of thermal power plants and oil refinery plants. ATMP can decrease scale formation and inhibit corrosion of metal equipment and pipeline. In addition, ATMP can be used as a chelating agent in woven and dyeing industries and as a metal surface treatment agent.

The solid state of ATMP is crystal powder, soluble in water, easily deliquescence, and suitable for usage in winter and freezing districts. Because of its high purity can be used in woven & dyeing industries and as a metal surface treatment agent.

Specifications:

Items Index
Appearance Colorless or light yellow transparent liquid White crystal powder
Active acid % 48.0~52.0 95 Min.
Chloride (as Cl-)% 2.0 (or 1.0) Min. 1.0 Min.
pH value（1％ solution） 2.0 Max. 2.0 Max.
Fe (as Fe3+) (ppm) 20 20
Density （20℃）g/cm 3 1.33 Min. —
Colour APHA (Hazen) 40 Max. —

Use:

ATMP is usually used with organophosphorus acid, polycarboxylic acid, and salt to build all organic alkaline water treatment agents. ATMP can be used in many different circulating cool water systems. A dosage of 1~20mg/L is recommended. As a corrosion inhibitor, the dosage of 20~60mg/L is preferred.

Packing and Storage::

ATMP liquid: Normally, in a 250kg net Plastic Drum, an IBC drum can also be used as required.

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

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

Safety Protection:

Acidity. Avoid contact with eyes and skin, once contacted, flush with water.

-: Product Range :-
EDTA ACID || EDTA-Na2 || EDTA-Na4 || EDTA-CaNa2 || EDTA-CuNa2 || EDTA-MgNa2 || EDTA-MnNa2 || EDTA-ZnNa2 || EDTA-FeNa
ATMP || BHMTPMPA || DTPMPA || EDTMPA || HEDP || HMDTMPA || HPAA || PBTCA || DTPA || NTA.3Na || DTPA.5Na || EDDHA-FE6
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