Nitrilotrimethylene Triphosphonic Acid

For Research Use Only.

Category

Corrosion and Scale Inhibitor

Cat.No.

WTA-029

CAS

6419-19-8

Product Name

Nitrilotrimethylene Triphosphonic Acid

Structure

Product Details

Catalog Water Technology

WTA-029

Synonyms

ATMP; ATMPA; Dequest 2000; BRIQUEST 301-50A; TRIS(PHOSPHONOMETHYL)AMINE; NITRILOTRIMETHANEPHOSPHONIC ACID; Aminotrimethylene Phoshonic Acid

IUPAC Name

[bis(phosphonomethyl)amino]methylphosphonic acid

Molecular Weight

299.05

Molecular Formula

N(CH2PO3H2)3

Canonical SMILES

C(N(CP(=O)(O)O)CP(=O)(O)O)P(=O)(O)O

InChI

InChI=1S/C3H12NO9P3/c5-14(6,7)1-4(2-15(8,9)10)3-16(11,12)13/h1-3H2,(H2,5,6,7)(H2,8,9,10)(H2,11,12,13)

InChIKey

YDONNITUKPKTIG-UHFFFAOYSA-N

Boiling Point

746.2±70.0°C(Predicted)

Melting Point

~215°C (dec.)

Flash Point

405.1°C

Purity

95 %

Density

1.3 g/mL at 25°C

EINECS

229-146-5

Properties

ATMP 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. ATMP 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. ATMP 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. ATMP is used as metal ion chelating agent or metal surface treatment agent in the textile printing and dyeing industry. The solid state of ATMP is crystalline powder, easily soluble in water, easy to absorb moisture, and easy to be transport and used, especially suitable for cold winter areas.

Storage

Storage in shady room and dry place.

pH of 1% solution

Standard: 2.0 max; Solid: 2.0 max

Application

ATMP is usually used together with organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. ATMP can be used in many different circulating cool water system. The dosage of 1-20 mg/L is recommended. As corrosion inhibitor, the dosage of 20-60 mg/L is preferred.

Appearance

Clear, Colorless to pale yellow aqueous solution

Description

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

LogP

-1.30600

Safety Protection

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

Standard: 10.0 max; Solid: 20.0 max

Active Content

Standard: 50.0 min; Solid: 95.0 min

Chloride

Standard: 1.0 max; Solid: 1.0 max

RIDADR

UN 3265 8/PG III

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