ATMP details


Amino Trimethylene Phosphonic Acid


Brief introduction

Chemical formula: N(CH2PO3H2)3

Molecular weight: 299.05

CAS: 6419-19-8

EINECS: 2931900090



It can be used as retarder for CSA cement

ATMP has good chelation, low limit inhibition and lattice distortion effects. It can prevent the formation of scale from scale-forming salts in water, especially the formation of calcium carbonate scale. ATMP has stable chemical properties in water and is not easily hydrolyzed. When the concentration in the water is high, it has a good corrosion inhibition effect.

Industry standard: HG/T2841-2005


Index range

Appearance: colorless or light yellow transparent liquid

Active component (as ATMP)%: 50.0 min

Amino Trimethylene Phosphonic Acid Content%: 40.0min

Phosphorous acid (as PO33-)% :3.5 max

Phosphoric acid (as PO43-)% : 0.8 max

Chloride (as Cl-)%: 2.0max

Iron (calculated as Fe2+) content ppm 20.0

Density (20C)g/cm3: 1.30min

pH (1% aqueous solution): 1.5-2.5



25KG/barrel; 250KG/barrel

ATMP as retarder for CSA cement

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