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Aminotrimethylene phosphonic acid ATMP
Aminotrimethylene phosphonic acid ATMP
Aminotrimethylene phosphonic acid ATMP
Aminotrimethylene phosphonic acid ATMP

Aminotrimethylene phosphonic acid ATMP

Category:

Organophosphorus scale and corrosion inhibitor chelating agent

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Keywords:

Organophosphorus scale and corrosion inhibitor chelating agent

Detailed introduction

Amino Trimethylene Phosphonic Acid ( ATMP )

Alternative name: Aminotri(methylene phosphonic acid), ATMPA , Nitrilotris(methylene)triphosphonic acid, Nitrilotris(methylene)phosphonic acid

CAS No.6419-19-8

Molecular formula: N(CH₂PO₃H₂)₃                             

Relative molecular mass: 299.05

Structural formula ：

Performance and Applications:

ATMP It exhibits excellent chelating, scale‑inhibiting, and lattice‑distorting properties. It can prevent the formation of scale from scaling salts in water, particularly calcium carbonate scale.

     ATMP It exhibits chemical stability in water and is resistant to hydrolysis. At higher concentrations in water, it provides excellent corrosion inhibition.

     ATMP It is used in the circulating cooling water systems of thermal power plants and refineries, as well as in oilfield water‑reinjection systems. It helps reduce corrosion and scaling on metal equipment and pipelines.

     ATMP It is used as a metal ion chelating agent in industries such as textile printing and dyeing, and can also serve as a metal surface treatment agent.

ATMP The solid is a white granular form, readily soluble in water, hygroscopic, and easy to transport and handle, making it particularly suitable for regions with severe winter cold.

Technical Indicators:

Project

Indicator

Compliant with HG/T 2841-2005

Compliant with HG/T 2840-2010

Appearance

Colorless or pale yellow transparent liquid

White granular solid

Active ingredient (as ATMP)%

≥50

≥95.0

Aminotrimethylene phosphonic acid content %

≥40

≥88.0

Phosphorous acid (by PO 3 3- Accounting )%

≤3.5

≤3.0

Phosphoric acid (by PO 4 3- Accounting )%

≤0.8

≤0.8

pH (1% aqueous solution)

≤2.0

≤2.0

Density (20℃) g·cm³

≥1.30

——

Chloride (in CI - Accounting )%

≤2.0

≤1.0

Iron (Expressed as Fe²+) content/mg·L⁻¹

≤20.0

≤20.0

 

Instructions for use:

ATMP It is often compounded with other organic phosphonates, polycarboxylic acids, or their salts to form organic water treatment agents, which are used in recirculating cooling water systems under a variety of water quality conditions. The dosage is typically… 1 ~ 20mg/L It is preferable; when used as a corrosion inhibitor, the dosage is 20 ~ 60mg/L。

Packaging and Storage:

ATMP Liquid is packaged in plastic drums, with each drum… 25kg or 250kg , or as determined according to user requirements. Solids are packaged in polyethylene-lined plastic woven bags, with a net weight per bag of 25kg , or determined according to user requirements. Store in a cool, well-ventilated indoor location, protected from moisture, Strictly avoid prolonged exposure to the sun. , with a shelf life of twelve months.

Security Protection:

ATMP It is acidic; observe appropriate personal protective measures during handling, and avoid contact with skin, eyes, etc. If contact occurs, rinse immediately with plenty of water.

Application scenarios

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