EDTMPA.Na5 CAS 7651-99-2
As a premier global chemical provider, we supply high-performance EDTMPA.Na5 (Pentasodium Salt of Ethylene Diamine Tetra Methylene Phosphonic Acid) to major industrial sectors across the Middle East, Russia, South America, and Africa. Backed by strict quality controls and seamless international logistics, we deliver reliable, cost-effective water treatment and surface finishing chemical solutions.
EDTMPA.Na5 is a neutral, nitrogen-containing organic polyphosphonic acid salt that functions as an exceptional cathodic corrosion inhibitor and scale preventer.
- High-Temperature Stability: Maintains highly efficient scale inhibition and molecular integrity under thermal stress up to 200℃.
- Excellent Metal Chelating Efficacy: Exhibits powerful chelating capacity for multi-valent metal ions, with extraordinary performance specifically for Copper (Cu2+) and Calcium (Ca2+).
- Eco-Friendly & Non-Toxic: Fully water-soluble, non-hazardous to operators, and safe for modern environmentally regulated industrial processes.
Pentasodium Ethylenediamine Tetramethylene Phosphonate Description
NAME: Pentasodium Salt of Ethylene Diamine Tetramethylene Phosphonic Acid (EDTMPA.Na)
Synonyms: Pentasodium Ethylenediamine Tetramethylene Phosphonate / Ethylenediamine tetra(methylenephosphonic acid) pentasodium
Molecular Formula: C6H15N2Na5O12P4
Molecular weight: 546.13
CAS NO.: 7651-99-2
Density: N/A
Boiling point: N/A
Melting point: N/A
Flashing point: N/A
Package: Liquid: 200L plastic drum, IBC(1000L),customers’ requirement.
Storage: Store in a cool, shaded, and dry indoor warehouse. Keep the container tightly closed when not in use. The standard shelf life is ten months under recommended storage conditions.
Safety protection: This product should avoid contact with eyes, skin or clothes. Once splashed on the body, rinse immediately with plenty of water.
About Us: With over many years as a certified EDTMPA.Na5 & Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
Hot tags: Dequest 2046; Briquest 301-50A; Mayoquest 2046
EDTMPA.Na5 Technical
Every batch of our product is strictly tested to guarantee optimal active content, low chloride impurities, and precise pH control.
| Item | Index |
| Appearance | Amber transparent liquid |
| Active content (as EDTMPA)% | 24.0-26.0 |
| Active content (as EDTMPA•Na5)% | 30.0-32.6 |
| Chloride (Cl-) % | 2.0 max |
| Density (20°C), g/cm3 | 1.25 min |
| Fe, mg/L | 20.0 max |
| PH(1% water solution) | 6.0～8.0 |
As a certified EDTMPA.Na5 & Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
EDTMPA.Na5 Applications
When dissolved, EDTMPA.Na5 dissociates into eight positive and negative ions, allowing a single molecule to chelate with multiple metal ions. This forms highly stable, multi-ring polymer reticulation complexes, effectively disrupting the normal crystallization of mineral scales—particularly calcium scale, calcium sulfate, and barium sulfate.
1. Cooling Water Systems & Boiler Water Treatment
- Scale & Corrosion Inhibition: Extensively utilized in circulating cooling water towers, low-pressure boilers, and cooling water loops in power generation plants.
- Synergistic Formulation (Usage Guide): When used as a standalone treatment, a dosage of 2 – 10 mg/L is recommended. For enhanced multi-functional performance, it can be optimally co-formulated with Polymaleic acid(PMA) (at an EDTMPA:HPMA ratio of 1:3), Benzotriazole(BTA), Sodium Polyacrylate(PAAS), or zinc salts.
2. Textile Printing & Dyeing Industry
- Functions as a high-efficiency water-softening agent and sequestering agent.
- It binds free heavy metal ions in process water that could otherwise interfere with dye consistency, preventing spotting, uneven coloration, and fabric degradation.
3. Cyanide-Free Electroplating
- Acts as an advanced complexing agent in modern, eco-friendly metal finishing lines.
- Replaces toxic cyanides while ensuring uniform metal ion deposition and high-quality plating thickness.
Q1: What makes EDTMPA.Na5 superior to traditional phosphonate scale inhibitors?
A: Unlike basic phosphonates, EDTMPA.Na5 possesses multiple nitrogen-organic polyphosphonic acid groups that dissociate into 8 ions in water. This allows it to form highly stable, multi-dentate chelate complexes with metal ions. Furthermore, it offers exceptional thermal tolerance up to 200℃, making it perfect for high-temperature boilers where other inhibitors fail.
Q2: Can EDTMPA.Na5 be combined with other water treatment polymers?
A: Yes, absolutely. EDTMPA.Na5 displays excellent synergistic effects when built with other polymers. Blending it with HPMA (Hydrolyzed Polymaleic Anhydride) at a 1:3 ratio is a highly effective industry standard for low-pressure boilers. It also compounds seamlessly with PAAS, zinc salts, and BTA (Benzotriazole).
Q3: How does EDTMPA.Na5 help prevent pipeline corrosion?
A: It acts primarily as a cathodic corrosion inhibitor. By chelating with metal ions in the water, it forms a dense, protective molecular film on the metal surfaces of pipelines and heat exchangers, effectively blocking oxygen and corrosive agents from reaching the metal substrate.
Q4: Is the liquid grade convenient for low-temperature shipping and storage?
A: Our liquid EDTMPA.Na5 has a high density (≥ 1.25 g/cm3) and excellent stability. For regions experiencing extreme winter conditions, we ensure stable formulations to prevent crystallization. (Note: A solid version is also available for specific export markets requiring moisture-proof solid handling).
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