CAS No.: [6419-19-8]

Chemical name: Amino tri(methylene phosphonic acid)

Molecular formula: C3H12NO9P3

Molecular weight: 299

Specification:

Appearance: colorless to light yellow clear liquid

Active content (as ATMP): 48-52%

Phosphorous acid (as PO3): 4.5% max.

Fe: 35 ppm max.

Chloride (as Cl): 1.0% max.

PH (1% aqueous solution): 2 max.

Density (20¡ãC): 1.28 g/ml min.

Calcium complexing power: 350 mg CaCO3/g min.

Color (APHA): 45 max.

Packing: 250 kg drum

Usage:Used in cooling water circulation system to prevent the water pipe and boiler tube free from scaling.

Aliases: Amidotriacetic acid, ATMPA, Secondary amidotriacetic acid, Secondary amidotriacetic acid
CAS No.6419-19-8
Molecular formula: C₂H₈O₇P₂

Relative molecular mass: 299.05

Property and Uses

ATMP has good chelating, low limiting lattice effects. It can prevent the formation of water scale, especially the formation of calcium carbonate. This product is chemically stable in water and is not easily hydrolyzed. At a higher concentration in water, it has a good corrosion inhibition effect.
ATMP is used in thermal power plants, oil refineries' circulating cooling water, oilfield return water systems. It can play a role in reducing the corrosion and scaling of metal equipment or pipelines. It is also used as a metal ion chelating agent in the textile printing and dyeing industry and can also be used as a metal surface treatment agent, etc.
ATMP is a crystalline powder solid, solu...

Formula: C3H12NO9P3N.W.: 299.05Item specification test resultsAppearance: transparent sticky liquid in colorlesslight yellow or colorlessActive acid: 50%min 50.5%Phosphorous acid: 3% max 1.77%Phosphoric acid: 0.8% max 0.65%PH at 20¡æ(1% water solution) 1.5-2.5 1.65 Specific gravity at 20¡æ 1.28-1.45 1.40Fe: 20ppm max 3ppmCl: 1.0% max 0.72%Color(Pt-Co): 40 max 20Use: ATMP is a phosphonate widely used in treating cooling or boiler water systems as scale and corrosion inhibitor. Many of water treatment chemical formulations contain ATMP as an important ingredient due to following advantages:Multifunctional performance from a single raw material Superior cost/performance in scale inhibitionSynergistic performance from formulated mixturesReplacement of sequestration levels of other chelants with threshold levels of phosphonateUsed in oil field as Antiscale dispersant.