Buy Amino tris(methylene phosphonic acid) | ATMP

Buy Amino tris(methylene phosphonic acid) | ATMP


  • CAS Number: 6419-19-8
  • Appearance:liquid, solid
  • Purity:50%
  • Made in: China 
  • Phone Num : +86-2150591759    
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  • Description
  • Analysis


Amino tris(methylene phosphonic acid) or  ATMP  with C3H12NO9P3 Chemical formula has excellent chelation properties that uses in industries.

When ATMP dissolve in water it will dissociate to six positive and negative ions and can make stable chelate with metal ions. it can chelate with metal ions such as iron, copper, aluminum, zinc, calcium, magnesium, etc.

ATMP is usable in petrochemicals, power plants, improving high water hardness, industrial cleaners, electroplating, corrosion inhibitor, is an effective scale inhibitor that uses in water treatment industries. ATMP also uses as a corrosion inhibitor for zinc and other phosphates.


Formula C3H12NO9P3
Appearance Clear colorless to light yellow liquid
Molar mass 299.07 g/mol
Density 1.33 g/cm3
Melting point 200 °C (392 °F; 473 K) decomposes
solubility in water 61 g/100 mL
PH of 1% solution <2
chemical structure chemical structure


For producing ATMP phosphorous acid and ammonium chloride are poured into the reactor and heated during stirring to will be dissolved, after that formaldehyde will be added dropwise and ATMP is formed.

Applications of Amino tris(methylene phosphonic acid)

This material has many applications in industry, including circulating cooling systems and water pipelines in oil refineries and thermal power plants, and metal equipment to reduce damage from corrosion and sediment.

Some of the most applications of ATMP in industries include:

  • industrial water treatment
  • oil field injection water system
  • industrial detergents
  • paper& pulp
  • textile industry as Sequestering agent
  • metal treatment
  • electroplating
  • inks & construction chemicals as a scale inhibitor
  • complexing agent
  • power plants
  • refineries
  • petrochemicals,
  • fertilizer plant cooling water
  • suitable for hard high-calcium
  • low concentration multiple systems
  • decrease the risk of corrosion and scaling of metal equipment and pipeline
  • textile printing
  • dyeing industry
  • metal ion chelating agent

The most uses of Amino tris (methylene phosphonic acid) is in water treatment. This matter is a crystalline solid that is soluble in water and is one of the best chelators. ATMP has high thermal stability and low toxicity.

Cooling water systems

This matter is mostly useful in water treatment when mix with Polycarboxylic acid, organophosphorus acid and salt.

ATMP has excellent chelating properties, has a low inhibitory threshold and reticular distortion capability. It can prevent scale formation, especially calcium carbonate deposition in aqueous systems. It is a well-stable chemical compound that is difficult to hydrolyze in hydrogen systems and acts as an excellent corrosion inhibitor at high concentrations.

What is Antiscalant?

Antiscalant is a substance that prevents the formation of sulfate and carbonate. It has more antiscalant ability on carbonate than other materials and works well with polyphosphate, polycarboxylate and nitrite.

In addition to reducing scale formation, this material also prevents corrosion of metal equipment and pipelines.

Amino trimethylene phosphonic acid as an Antiscalant that has application in dyeing industry and is of the main materials in recirculated cooling water systems.

Safety and hazard of ATMP

This acidic substance should be avoided in case of contact with eyes and skin, and in case of contact with washing water.

Read MSDS before using it.

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