Amino Trimethylene Phosphonic Acid

(AMP)

 

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: 

Properties: 

AMP 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. AMP 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.

AMP 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. AMP is used as metal ion chelating agent or metal surface treatment agent in the textile printing and dyeing industry.

The solid state of AMP 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:

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

AMP 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:

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

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

Storage for ten months in shady room and dry place.

Safety Protection:

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

Synonyms:

ATMP; ATMPA; ATMP(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