Product Description

Product Name: HexaMethylene Diaminetetra Methylene Phosphonic Acid (HMDTMPA)

CAS Number: 23783-26-8

Molecular Formula: C10h28n2o12p4

Appearance: Clear to slightly yellow liquid or crystalline solid

pH: Typically neutral to slightly acidic in aqueous solution

Solubility: Highly soluble in water

Product Description:

HMDTMPA is a high-performance chelating agent with a unique structure that provides exceptional stability and effectiveness in sequestering metal ions. It is designed for use in applications where control of metal ions is critical to prevent scale formation, corrosion, and other issues related to water quality.

Key Features:

• Superior Chelating Capacity: HMDTMPA forms stable complexes with a wide range of metal ions, preventing scale formation and corrosion.
• Broad pH Stability: Effective over a wide pH range, making it suitable for various water treatment applications.
• High Solubility: Easily soluble in water, facilitating easy dosing and application in aqueous systems.
• Low Toxicity: Environmentally friendly with a low toxicity profile, reducing ecological impact.

Applications:

• Water Treatment: Used in industrial, commercial, and municipal water treatment to prevent scale and corrosion.
• Cooling Tower Systems: Effective in controlling scale and corrosion in closed-loop cooling systems.
• Boiler Water Treatment: Provides protection against scale formation and corrosion in boiler systems.
• Oil and Gas Industry: Utilized in enhanced oil recovery processes and as a corrosion inhibitor in drilling operations.

Safety Information:

Handle HMDTMPA with appropriate personal protective equipment (PPE), including gloves, safety goggles, and a mask.
Avoid contact with skin and eyes. In case of contact, flush immediately with plenty of water and seek medical advice if necessary.
Storage Conditions:

Store in a cool, dry, and well-ventilated area away from direct sunlight and heat sources.
Keep containers tightly sealed to maintain product integrity and prevent contamination.

Storage Conditions:

Packed in kraft paper or PE bags with inner plastic flim bags.
25kgs/bag,1000kg/palllet,40bags/pallet.

Company Profile:
 
Hunan Fortune Technology Co., Ltd., established in 2004 and officially registered in 2016 with a 30 million RMB capital, is a leading provider of fine chemicals with nearly two decades of industry experience. Based in Zhuzhou, our company specializes in research and production of high-quality chemical agents, including mining chemicals, for environmental solutions and metallurgical processes.

Our team of chemical engineers, with over 20 years of metallurgical expertise, ensures we offer customized solutions and premium products to meet diverse client needs. We have expanded our services to include mining chemicals, enhancing efficiency and sustainability in the mining sector.

With a strong commitment to innovation and sustainability, Hunan Fortune Technology Co., Ltd. is dedicated to providing effective and reliable environmental solutions, contributing to a greener future.

Technical Support:

Hexamethylene Triamine Phosphonic Acid (HDTMPA) is an advanced organic phosphonic acid compound known for its excellent chelating, scale inhibition, and corrosion resistance properties. Chemically represented as C10H28N6O12P4, HDTMPA is a nitrogen-containing polyphosphonic acid with multiple phosphonic acid groups that can form stable complexes with metal ions such as calcium, magnesium, and iron. This unique molecular structure allows it to perform effectively in harsh industrial environments, making it a crucial component in water treatment, oilfield operations, and detergent formulations.

1. Chemical Structure and Properties

HDTMPA has a molecular weight of approximately 492.3 and is typically available as a colorless to pale-yellow aqueous solution. It exhibits strong resistance to hydrolysis under acidic and alkaline conditions, ensuring long-term stability in various applications. Its structure contains multiple phosphonic acid groups attached to a hexamethylene triamine backbone, which gives it superior metal ion chelating ability. This enables HDTMPA to effectively prevent the precipitation of metal salts and maintain system cleanliness in high-temperature and high-hardness water environments.

The compound is soluble in water and ethanol but insoluble in most organic solvents. HDTMPA’s high thermal stability makes it suitable for use in systems that operate under extreme conditions, such as boilers, cooling towers, and oilfield injection water systems. It also exhibits low volatility and minimal environmental toxicity compared to conventional phosphonate inhibitors, providing a more sustainable and eco-friendly option for industrial applications.

2. Key Functions and Mechanisms

HDTMPA works through two primary mechanisms—chelating and threshold inhibition. As a chelating agent, it binds with divalent and trivalent metal ions to form soluble complexes, effectively reducing scaling caused by calcium carbonate, calcium sulfate, and iron oxides. The threshold effect prevents the formation of crystals even at concentrations below stoichiometric levels, ensuring efficient scale control with minimal dosage.

1. Scale inhibition: HDTMPA’s phosphonic groups interfere with crystal growth, altering crystal morphology and reducing scale adhesion on equipment surfaces.

2. Corrosion prevention: It forms protective complexes with metal surfaces, creating a thin film that isolates the metal from corrosive agents such as oxygen and chloride ions.

3. Chelation of heavy metals: HDTMPA binds effectively with toxic metal ions like copper, zinc, and lead, aiding in wastewater purification and metal recovery processes.

4. Synergistic effect: It can be combined with polycarboxylic acids, zinc salts, and azoles to enhance corrosion inhibition in composite formulations.

3. Industrial Applications

(1) Water Treatment Industry
HDTMPA is widely used as a scale and corrosion inhibitor in circulating cooling water systems, oilfield water injection systems, and industrial boiler systems. Its high chelating capacity allows for efficient control of hardness ions and prevents scale formation that could reduce heat exchange efficiency.

(2) Detergent and Cleaning Agents
In detergent formulations, HDTMPA acts as a sequestrant, preventing the deposition of insoluble metal salts and improving the cleaning performance of surfactants. It enhances detergent stability and prevents fabric discoloration caused by metal ion interference.

(3) Textile and Dyeing Industry
In textile processing, HDTMPA is applied to stabilize peroxide bleaching baths and control metal ion contamination that affects color uniformity. Its ability to chelate metal ions ensures consistent dyeing results and fabric quality.

(4) Oilfield Chemicals
In oilfield operations, HDTMPA plays a vital role in scale control for water flooding systems and downhole equipment. It minimizes scale accumulation in pipelines and enhances production efficiency by maintaining optimal flow rates.

(5) Pulp and Paper Industry
It is also used as a scale control agent in paper production processes, preventing calcium and magnesium deposits in paper machines and ensuring consistent paper quality and brightness.

4. Advantages over Conventional Inhibitors

Compared to traditional scale inhibitors like EDTA and ATMP, HDTMPA offers several notable advantages:

1. Higher thermal stability, making it suitable for high-temperature environments such as power plants.

2. Better calcium tolerance, reducing precipitation in hard water systems.

3. Improved corrosion resistance, protecting metallic surfaces for longer operational life.

4. Environmental safety, with lower phosphorus release and better biodegradability profiles than older phosphonates.

5. Storage and Handling Precautions

HDTMPA should be stored in a cool, dry, and well-ventilated area away from oxidizing agents. The product is mildly acidic; direct contact with skin or eyes should be avoided. Containers should be tightly sealed to prevent moisture absorption. When diluted for industrial use, stainless steel or polyethylene tanks are recommended for storage to prevent chemical reactions with metal surfaces.

6. Future Prospects and Research Directions

As industries shift toward greener and more efficient water treatment solutions, HDTMPA’s role as a next-generation phosphonate compound is becoming increasingly significant. Current research focuses on enhancing its biodegradability through structural modification and combining it with eco-friendly polymers for advanced performance. The compound’s application is expected to expand into new fields such as desalination systems, renewable energy plants, and sustainable industrial wastewater recycling.

Conclusion
Hexamethylene Triamine Phosphonic Acid is a high-efficiency, multi-functional chelating and anti-scaling agent that has proven indispensable in modern industrial water treatment and corrosion control. With its superior stability, wide compatibility, and low environmental impact, HDTMPA continues to drive innovation in sustainable chemical engineering and industrial maintenance solutions.