Ethylenediamine Tetra(methylene Phosphonic Acid) (EDTMPA)

Synonyms: Ethylenediamine Tetramethylene Phosphonic Acid, Ethylenediamine Tetra(methylene Phosphonic Acid)

CAS No.: 1429-50-1
Molecular Formula: C₆H₂₀O₁₂N₂P₄
Molecular Weight: 436

Key Features

High purity suitable for demanding industrial and specialty applications

Excellent metal-chelating capability

White crystalline powder with good thermal stability

Suitable for electronic and semiconductor cleaning applications

Applicable to specialized pharmaceutical and medical applications

Low chloride and iron content for applications with stringent purity requirements

Product Description

EDTMPA is a high-purity organophosphonic acid with excellent metal-chelating properties. At room temperature, EDTMPA is a white crystalline powder with a melting point of approximately 215–217°C.

EDTMPA is slightly soluble in water, with a solubility of less than 5% at room temperature, and is readily soluble in aqueous ammonia.

As a high-purity reagent, EDTMPA offers strong chelating capability toward a wide range of metal ions. Due to its high purity and excellent complexing properties, it is suitable for applications requiring effective control of metal ions.

In the electronics industry, EDTMPA can be used as a cleaning agent in semiconductor chip and integrated circuit manufacturing processes.

In the pharmaceutical and medical fields, EDTMPA can be used as a carrier or complexing agent for radioactive elements in applications involving the diagnosis and treatment of certain diseases.

Ethylenediamine Tetra(methylene Phosphonic Acid) (EDTMPA)

Product Parameters

ItemSpecification
AppearanceWhite crystalline powder
Active Component (as EDTMPA), %≥95.0
Organophosphonate (as PO₄³⁻), %≥82.0
pH (1% aqueous solution)≤2.0
Chloride (as Cl⁻), %≤0.1
Loss on Drying, %≤2.0
Iron (as Fe), mg/L≤5.0

Packaging and Storage

EDTMPA is packed in composite woven bags with an inner liner or other export-compliant environmentally friendly packaging.

Standard net weight: 25 kg per bag.

Store in a cool, dry indoor area, protected from moisture, heat, and direct sunlight. Keep the package tightly sealed when not in use.

Recommended storage period: 10 months.

Safety and Handling

EDTMPA is an acidic solid. Appropriate personal protective equipment should be worn during handling.

Avoid contact with the skin and eyes. In case of contact, rinse immediately and thoroughly with plenty of clean water.

For detailed information on safe handling, storage, transportation, and emergency procedures, please refer to the product's Safety Data Sheet (SDS).

Application Scenarios

EDTMPA is particularly suitable for high-purity applications where effective metal-ion chelation and low impurity levels are required.

Electronics & Semiconductor Industry

EDTMPA can be used as a metal-ion chelating and cleaning agent in semiconductor and integrated circuit manufacturing, helping control metal-ion contamination during processing.

Pharmaceutical & Medical Applications

EDTMPA can be used as a carrier or complexing agent for radioactive elements in specialized applications related to medical diagnosis and treatment.

EDTMPA

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