Amino Trimethylene Phoshonic Acid, Nitrilo Trimethylene Triphosphonic Acid, Dequest 2000, ATMP ,6419-19-8

Amino Trimethylene Phoshonic Acid, Nitrilo Trimethylene Triphosphonic Acid, Dequest 2000, ATMP ,6419-19-8

Amino Trimethylene Phosphonic Acid (ATMP) 

Chemical Identity:

• Formula: C₃H₁₂NO₉P₃

• Molecular Weight: 299.05 g/mol

• CAS Number: 6419-19-8

• Physical Form: Available both as a liquid and as a crystalline powder. The solid form is highly soluble in water and suitable for use in cold climates or freezing conditions.

• Packaging: Typically supplied in barrels.

Key Properties:

• Strong chelating ability – binds metal ions effectively.

• Excellent scale inhibition – prevents calcium carbonate (CaCO₃) deposits in water systems.

• Functions as a corrosion inhibitor – protects pipelines and metal equipment.

• High chemical stability – resistant to hydrolysis, making it durable in water treatment applications.

• Exhibits threshold inhibition and lattice distortion properties, enhancing its effectiveness in preventing scale formation.

Industrial Applications:

• Water Treatment Systems:

  • Used in circulating cooling water systems in thermal power plants and petroleum refineries.

  • Applied in oilfield water pipelines to prevent scale and corrosion.

• Petroleum Industry:

  • Helps reduce erosion around oil wells.

• Textile Industry:

  • Acts as a sequestering agent in dyeing and bleaching processes.

• Metal Processing:

  • Serves as a rust inhibitor and surface treatment agent.

• Detergents:

  • Functions as a cleaning agent.

• Paper and Pulp Industry:

  • Used as a precipitation inhibitor and pH regulator.

Production Process:

1. Oxidation of Formaldehyde: Formaldehyde reacts with hydrogen peroxide to form formic acid.

2. Reaction with Phosphoric Acid: Formic acid reacts with phosphoric acid under controlled conditions (high temperature, low pH), producing Trimethylene Phosphonic Acid (TMPO) as an intermediate.

3. Amidation with Ammonia: TMPO reacts with ammonia, replacing a hydrogen atom and yielding the final product, ATMP.

Alternative route: Direct reaction of phosphoric acid with ammonia, though less commonly used.

Advantages:

• Versatile applications across multiple industries (water treatment, petroleum, textiles, metals, detergents, paper).

• Environmentally safe – does not pose significant harm when used in water systems.

• Improves water quality by preventing precipitation of calcium and magnesium salts.

• Solid crystalline form offers logistical and seasonal advantages.

In summary: ATMP is a phosphonic acid derivative widely recognized for its chelating, scale-inhibiting, and corrosion-preventing properties. Its stability and versatility make it indispensable in industrial water treatment, petroleum refining, textiles, metal processing, detergents, and pulp & paper production.

🔹 Chemical Identity

• Name: Amino Trimethylene Phosphonic Acid (ATMP)

• Formula: C₃H₁₂NO₉P₃

• Molecular Weight: 299.05 g/mol

• CAS Number: 6419-19-8

• EINECS Number: 229-146-5

• MDL Number: MFCD00002138

🔹 Synonyms & Trade Names

• ATMP

• ATMPA

• AMP

• AminoTri (Methylene Phosphonic Acid)

• Tris (Methylene Phosphonic Acid) Amine

• Nitrilotrimethylphosphonic Acid (NTP)

• Nitrilotris (methylene) triphosphonic acid

• Aminotris (methylenephosphonic acid)

• Dequest 2000 / Dequest 2001 (commercial names)

• Ferrofos 509 / Ferrofos 59

• Dowell L-37

• Briquest 301-50A

• UNII-1Y702GD0FG

🔹 Sectoral Suitability Table

🔹 Alternatives to ATMP

• EDTA (Ethylenediaminetetraacetic Acid): Strong chelating agent, widely used in detergents and water treatment.

• DTPA (Diethylenetriaminepentaacetic Acid): More powerful chelator than EDTA, used in pulp & paper and textile industries.

• HEDP (1-Hydroxyethylidene-1,1-Diphosphonic Acid): Common phosphonate alternative, effective scale inhibitor with good stability.

• PBTC (Phosphonobutane Tricarboxylic Acid): Excellent threshold scale inhibitor, often used in cooling water systems.

• Polyacrylic Acid & Copolymers: Used as dispersants and scale inhibitors in water treatment.

Summary: ATMP is a versatile organophosphonic acid derivative with strong chelating, scale-inhibiting, and corrosion-preventing properties. It is widely applied across water treatment, petroleum refining, textiles, metal processing, detergents, and pulp & paper industries. Its commercial synonyms (Dequest, Ferrofos, Briquest) and alternatives (EDTA, DTPA, HEDP, PBTC) make it a central chemical in industrial water management and cleaning formulations.