Amino Trimethylene Phosphonic Acid

(ATMP)

CAS No. 6419-19-8

Molecular Formula: N(CH2PO3H2)3

Molecular weight: 299.05

Synonyms:Nitrilo trimethane phosphonic acid, Dequest 2000

Structural Formula:

Properties:

ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation,

calcium carbonate in particular, in water system. It has good chemical stability and is hard to be hydrolyzed in

water system. At high concentration, it has good corrosion inhibition.

ATMP is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant

and oil refinery plant. It can decrease scale formation and inhibit corrosion of metal equipment and pipeline. It can

be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.

Solid ATMP is crystal powder, soluble in water, easily deliquescence, suitable for usage in winter and freezing

districts. Due to its high purity, it can be used in woven dyeing industries and as metal surface treatment agent.

Specification:

Items                                                                                                                                                 Index                                                                             

Standard                                                                                      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 min

pH value (1%solution)                                                                2.0 max                                                                                       2.0 max

Fe,mg/L                                                                                       10.0 max                                                                                      20.0 max

Density (20℃)g/cm3                                                               1.31-1.35                                                                                             -

Color APHA(Hazen)                                                                  30.0 max                                                                                              -

Ca Sequestration(CaCO3/g)                                                   450.0 min

Usage:

ATMP is usually used together with organophosphoric acid, polycarboxylic acid and salt to buid all organic alkaline

water treatment agent. It can be used in many different circulating cool water systems. The dosage of 1-20mg/L is

recommended. As corrosion inhibitor, the dosage of 20-60mg/L is preferred.

Package and Storage:

Liquid:200L plastic drum, IBC(1000L), customers’ requirement.

Solid:25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.

Storage for ten monthsin room shady and dry place.

Safety Protection:

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