Amino tris(methylene phosphonic acid)

Product Details

CasNo： 6419-19-8

MF： C3H12NO9P3

Appearance： Solid

Delivery Time： 15 days

Packing： 25kg/bag

Purity： 95%

• Basic Information
  • Chemical Formula: N(CH₂PO₃H₂)₃
  • Molecular Weight: 299.05
  • CAS No.: 6419 - 19 - 8
  • English Name: Amino Trimethylene Phosphonic Acid
  • Aliases: Amino Trimethylene Phosphonic Acid, ATMPA, Nitrilotrimethylene Triphosphonic Acid, etc.
• Physical and Chemical Properties
  • Appearance: It exists in both solid and liquid forms. The solid is a white crystalline powder, and the liquid is a colorless or light - yellow transparent liquid.
  • Density: The density of the solid is about 1.3 - 1.34g/cm³, and the density of the liquid (20℃) is ≥1.28g/cm³.
  • Solubility: It is easily soluble in water and insoluble in organic solvents such as ethanol.
  • Stability: It has stable chemical properties and is not easy to hydrolyze. It can stably exist in a relatively wide pH range of 4 - 9, and its performance will not decrease significantly at high temperatures (50 - 80°C).
• Quality Indicators
  • Active Component (Calculated as ATMP): Liquid ≥50.0%, Solid ≥95.0%.
  • Amino Trimethylene Phosphonic Acid Content: Liquid ≥40.0%, Solid ≥80.0%.
  • Phosphorous Acid (Calculated as PO₃³⁻): ≤3.5%.
  • Phosphoric Acid (Calculated as PO₄³⁻): ≤0.8%.
  • pH Value of 1% Aqueous Solution: 1.5 - 2.5.
• Product Uses
  • Water Treatment Field: Often compounded with other organic phosphonic acids, polycarboxylic acids or salts into organic alkaline water treatment agents, which are used in the circulating cooling water of thermal power plants, refineries and the reinjection water systems of oil fields. It can reduce the corrosion and scaling of metal equipment or pipelines. The optimal dosage is 1 - 20mg/L, and when used as a corrosion inhibitor, the dosage is 20 - 60mg/L.
  • Textile and Dyeing Industry: Used as a metal - ion chelating agent to prevent the color change of dyes due to combination with metal ions.
  • Metal Surface Treatment: Can be used for metal cleaning, electroplating pretreatment, etc., to help remove surface impurities.
• Packaging and Storage
  • Packaging: The liquid is packed in plastic drums, 30kg or 250kg per drum. The solid is packed in plastic - woven bags with polyethylene - lined inner bags, 25kg net per bag, and can also be determined according to user needs.
  • Storage: Store in a cool place indoors, pay attention to moisture - proof and prevent exposure to the sun. The storage period is generally twelve months.
• Safety Precautions: It is acidic. Avoid contact with eyes, skin or clothes. Once splashed on the body, immediately rinse with a large amount of water.