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ATMPA

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ATMPA is used in circulating cooling water of thermal power plants and oil refineries, also in oil field water injection system, to play a role in reducing the corrosion and scaling of metal equipment or piping. ATMPA is used as metal ion chelating agent or metal surface treatment agent in the textile printing and dyeing industry.

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  • ATMPA
  • ThFine
  • CAS No. 6419-19-8
  • Amino Trimethylene Phosphonic Acid

Amino Trimethylene Phosphonic Acid

(ATMPA)

 

CAS No.: 6419-19-8                                               EINECS No.: 229-146-5

Molecular Formula: N(CH2PO3H2)3                           Molecular Weight: 299.05

RIDADR: UN 3265 8/PG III

Structural Formula: 


ATMP


Properties: 

ATMPA has good chelating, low limit inhibition and lattice distortion ability. It can prevent the formation of scale salts in water, especially the formation of calcium carbonate scale. ATMPA has good chemical stability and is hard to be hydrolyzed in water. When the water concentration is high, it shows a good corrosion inhibition effect.

ATMPA is used in circulating cooling water of thermal power plants and oil refineries, also in oil field water injection system, to play a role in reducing the corrosion and scaling of metal equipment or piping. ATMPA is used as metal ion chelating agent or metal surface treatment agent in the textile printing and dyeing industry.

The solid state of ATMPA is crystalline powder, easily soluble in water, easy to absorb moisture, and easy to be transport and used, especially suitable for cold winter areas.


 

Specification:

Items

Index

Standard

Solid

Appearance

Clear, Colorless to pale yellow aqueous solution

White crystal powder

Active acid %

50.0 min

95.0 min

Chloride (as Cl-)%

1.0 max

1.0 max

pH (1% water solution)

2.0 max

2.0 max

Fe, mg/L

10.0 max

20.0 max

Density (20℃)g/cm3

1.30 min

-

Colour APHA (Hazen)

30.0 max

-


Usage:

ATMPA is usually used together with organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. 

ATMPA can be used in many different circulating cool water system. The dosage of 1-20mg/L is recommended. As corrosion inhibitor, the dosage of 20-60mg/L is preferred.


Package and Storage:

ATMPA Liquid: Normally in 200L HDPE drum, 1000L IBC, or customers’ requirement.

ATMPA Solid: 25kg inner liner PE bag, 1000kg woven bag, or customers’ requirement.

Storage for ten months in shady room and dry place.

Package


Safety Protection:

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


Synonyms:

ATMPATMPAATMP(A)AMP;

Amino Trimethylene Phosphonic Acid;

Amino Tri(Methylene Phosphonic Acid);

Tris(Methylene Phosphonic Acid) Amine;

Nitrilotrimethylphosphonic Acid(NTP);

Nitrilotrimethylenetris(Phosphonic Acid);



Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents

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