ATMP/Amino Trimethylene Phosphonic Acid
ATMP chemical - Effective water treatment agent for scale inhibition.
Amino Trimethylene Phosphonic Acid
- Chemical Name: Amino Trimethylene Phosphonic Acid
- Abbreviation: ATMP
- CAS Number: 6419-19-8
- Molecular Formula: C3H12NO9P3
- Available Grades: ATMP 50% Liquid / ATMP 95% Powder / ATMP·Na5
- Liquid Packing: 250 kg drum / 1.25 MT IBC
- Powder Packing: 25 kg bag
- Other Name: NTMP; Nitrilotrimethylphosphonic acid;
- Documentation: COA / TDS / SDS available on request
ATMP Specifications
ATMP (Amino Tris(methylene) Phosphonic Acid), also known as Amino Trimethylene Phosphonic Acid, CAS 6419-19-8, is a phosphonate used primarily as a scale and corrosion inhibitor in industrial water treatment. HOO CHEMTEC supplies ATMP in 50% liquid, 95% powder and ATMP·Na5 grades for cooling water, boiler water, oilfield and other industrial applications. Bulk packaging and COA, TDS and SDS documentation are available on request.
ATMP Specifications
| ITEMS | SPECIFICATIONS |
| Active acid(ATMP) % | MIN 50 |
| PHOSPHOROUS ACID(AS PO33-)% | 0.5max |
| PHOSPHORIC ACID(AS PO43-)% | 0.2max |
| PH(1% SOLUTION) | 1.5-2.0 |
| DENSITY(20℃)g/cm³ | 1.27min |
| Color Hazen | 30max |
| Ca Chelating Value mg/g | 450min |
| ITEMS | SPECIFICATIONS |
| Active acid % | MIN 95 |
| ATMP % | MIN 85 |
| PHOSPHOROUS ACID(AS PO33-)% | 4.0 max |
| PHOSPHORIC ACID(AS PO43-)% | 0.8 max |
| PH(1% SOLUTION) | 2.0 max |
| Chloride (as Cl-)% | 1.0max |
| ITEMS | SPECIFICATIONS |
| Active content (ATMP)% | 27.8-30.7 |
| ATMP•Na5 % | 38.0-42.0 |
| Total phosphoric acid(PO43-) % | 26.6-28.6 |
| Chloride (as Cl-) % | 1.0 max |
| PH(1% SOLUTION) | 10.0-11.0 |
| Density (20℃) g/cm3 | 1.38-1.48 |
Which ATMP Grade Should You Choose?
Choose ATMP 50% Liquid when the product will be used directly in automatic dosing systems and conventional industrial water treatment.
Choose ATMP 95% Powder when transportation cost, storage efficiency or high active concentration is a priority.
Choose ATMP·Na5 when a sodium salt form with an alkaline 1% solution pH is better suited to your formulation or operating conditions.
The suitable grade depends on water chemistry, dosing equipment, storage conditions and application requirements. Contact HOO CHEMTEC for a product specification and recommendation based on your application.
Types of Amino Trimethylene Phosphonic Acid
ATMP Grades: Liquid, Powder and ATMP·Na5
HOO CHEMTEC supplies three ATMP grades for different industrial water treatment and logistics requirements.
| Grade | Form | Typical Specification | Recommended When |
|---|---|---|---|
| ATMP 50% Liquid | Clear liquid | ≥50% active acid | You need a ready-to-dose phosphonate for conventional water treatment systems |
| ATMP 95% Powder | White crystalline powder | ≥95% active acid | You prioritize high concentration, storage efficiency and long-distance shipping |
| ATMP·Na5 | Sodium salt solution | 38–42% ATMP·Na5 | Your formulation or system requires a neutral-to-alkaline phosphonate salt |
Amino Trimethylene Phosphonic Acid Uses
ATMP is mainly used as a phosphonate scale and corrosion inhibitor in industrial water treatment and related chemical formulations.
Cooling Water Treatment
ATMP helps control mineral scale and corrosion in industrial circulating and cooling water systems.
Boiler Water Treatment
ATMP can be used in boiler water treatment programs where scale control and metal protection are required.
Reverse Osmosis and Membrane Systems
ATMP can help control mineral scaling in membrane-based water treatment systems. Product selection and dosage should be based on feed-water chemistry and the membrane manufacturer’s requirements.
Oilfield Water Treatment
ATMP is used in oilfield water systems where mineral scale and corrosion can affect pipelines, production equipment and water injection systems.
Industrial Cleaning
ATMP can be used in cleaning and descaling formulations to help control metal ions and mineral deposits.
Textile and Metalworking
ATMP can be used as a chelating and scale-control component in selected textile processing and metalworking formulations.
FAQ of Amino Trimethylene Phosphonic Acid
HOO CHEMTEC supplies ATMP 50% liquid, ATMP 95% powder and ATMP·Na5. The suitable grade depends on the application, dosing system, storage conditions and logistics requirements.
Yes. TDS, SDS and COA can be provided according to the product and shipment requirements. For bulk orders, buyers can confirm the required specification and documentation before ordering.
ATMP is considered safe for industrial applications when used according to recommended guidelines. Proper handling includes wearing protective equipment and storing the product in cool, well-ventilated areas. For detailed safety information, users should always refer to the ATMP Safety Data Sheet (SDS) provided by the manufacturer.
ATMP works by chelating metal ions such as calcium, magnesium, and iron, preventing scale formation on metal surfaces. Its strong threshold inhibition effect allows effective performance at low dosages, while its molecular structure forms a protective film on metal surfaces, helping to reduce corrosion in industrial water systems.
Compared with other phosphonate water treatment chemicals, ATMP offers superior thermal stability, strong chelation ability, and long-term scale control. It remains effective at high temperatures and across a wide pH range, making it suitable for harsh industrial operating conditions such as oilfield and high-alkalinity systems.
ATMP packaging must be leak-proof and resistant to its acidic corrosion.
Packing:
liquid: 250kg/drum, 1.25mt/IBC, or as customers’ requirement.
Solid: 25kg/bag, or as customers’ requirement.
Proper storage ensures the chemical stability of ATMP and extends its shelf life. Environmental requirements: Cool and well-ventilated: Store in a dry, well-ventilated warehouse, away from direct sunlight.
ATMP Supplier & Exporter – HOO CHEMTEC
HOO CHEMTEC supplies ATMP for industrial water treatment and chemical formulation applications. We support bulk orders with product specifications, quality documentation and export packaging.
Consistent Product Specifications
We control key ATMP parameters including active content, pH, density and specified impurity limits. A Certificate of Analysis (COA) can be provided for shipment batches.
Multiple ATMP Grades
We supply ATMP 50% liquid, ATMP 95% powder and ATMP·Na5, allowing buyers to select the appropriate form based on application, dosing system and logistics requirements.
Export Packaging
Standard packaging includes 250 kg drums and 1.25 MT IBCs for liquid ATMP, and 25 kg bags for ATMP powder. Other packaging options can be discussed according to order requirements.
Technical & Export Documentation
We can provide TDS, SDS, COA and standard export documents according to the product and shipment requirements.
Support for Bulk Procurement
For bulk ATMP sourcing, send us your required grade, quantity, packing preference and destination. Our team can confirm the applicable specification and quotation.
