EDTA-4Na (Tetrasodium EDTA) – Chelating Agent Supplier from China

EDTA-4Na (Tetrasodium EDTA), also known as Tetrasodium Ethylenediaminetetraacetate, is a powerful chelating agent widely used in water treatment, detergents, industrial cleaning, cosmetics, textile processing, pulp and paper, and other industrial applications.

EDTA-4Na has excellent metal ion binding ability and can form stable complexes with calcium, magnesium, iron, copper, and other metal ions. Due to its strong chelating performance, it is commonly used to control hardness ions, improve cleaning efficiency, and enhance the stability of industrial formulations.

We supply EDTA-4Na (Tetrasodium EDTA) from China for international customers, distributors, and industrial users. COA, SDS, TDS, and product specifications can be provided according to customer requirements.

EDTA-4Na Product Information


Product Name	Tetrasodium EDTA
Chemical Name	Ethylenediaminetetraacetic Acid Tetrasodium Salt
Abbreviation	EDTA-4Na / Tetrasodium EDTA
CAS Number	64-02-8
Molecular Formula	C₁₀H₁₂N₂Na₄O₈
Molecular Weight	380.17
Appearance	White crystalline powder
Chemical Type	Chelating Agent

EDTA-4Na is usually supplied as an anhydrous or hydrated powder depending on the manufacturing specification. It has good water solubility and provides effective metal ion control in aqueous systems.

What Is EDTA-4Na?

EDTA-4Na is the tetrasodium salt of ethylenediaminetetraacetic acid (EDTA).

EDTA compounds are widely used as chelating agents because they can bind metal ions through multiple coordination sites. This ability allows EDTA-4Na to remove or control unwanted metal ions that may affect product performance, chemical reactions, or formulation stability.

Common metal ions controlled by EDTA-4Na include:

Calcium (Ca²⁺)
Magnesium (Mg²⁺)
Iron (Fe³⁺ / Fe²⁺)
Copper (Cu²⁺)
Other trace metal ions

EDTA-4Na as a Chelating Agent

The main function of EDTA-4Na is its strong chelating ability.

In industrial applications, EDTA-4Na can help:

Control hardness ions
Prevent metal ion interference
Improve cleaning performance
Stabilize formulations
Reduce scale-related problems
Enhance processing efficiency

Its alkaline salt form makes EDTA-4Na especially suitable for industrial and detergent applications.

EDTA-4Na for Water Treatment

One of the important applications of EDTA-4Na is water treatment and water conditioning.

In water systems, metal ions such as calcium, magnesium, iron, and copper can cause problems including scale formation, deposits, and unwanted chemical reactions.

EDTA-4Na can be used as a chelating agent to bind these metal ions and control their effects.

Potential applications include:

Industrial water treatment
Boiler water systems
Cooling water systems
Metal ion control
Scale prevention formulations

However, EDTA-4Na is different from traditional coagulants and flocculants such as PAC and PAM. It does not remove suspended solids through coagulation; instead, it works mainly through metal ion complexation.

EDTA-4Na for Detergents and Cleaning Products

EDTA-4Na is widely used in detergent and cleaning formulations.

As a chelating agent, it helps improve cleaning efficiency by binding calcium and magnesium ions present in hard water.

Benefits in detergent formulations include:

Improved surfactant performance
Reduced effects of hard water
Better cleaning efficiency
Enhanced product stability

Applications include:

Laundry detergents
Liquid detergents
Industrial cleaners
Household cleaning products
Specialty cleaning formulations

EDTA-4Na is often combined with surfactants such as SLES, SLS, AEO, and other detergent ingredients.

EDTA-4Na in Industrial Applications

Because of its metal ion control properties, EDTA-4Na is used in various industrial processes.

Applications may include:

Textile Industry

EDTA-4Na can help control metal ions in textile processing and improve the stability of dyeing systems.

Pulp and Paper Industry

It can be used to control metal ions that may affect bleaching and processing performance.

Electroplating Industry

EDTA-4Na can act as a complexing agent in metal-related processes.

Chemical Manufacturing

It is used in formulations where metal ion control and chemical stability are required.

EDTA-4Na vs EDTA-2Na

Although EDTA-4Na and EDTA-2Na are both EDTA salts, their applications are different.

EDTA-4Na (Tetrasodium EDTA)

Four sodium ions
Strong alkaline salt form
Commonly used in detergents and industrial applications
Suitable for water treatment and cleaning formulations
CAS No. 64-02-8

EDTA-2Na (Disodium EDTA)

Two sodium ions
Commonly used in cosmetics, food, pharmaceuticals, and specialty applications
CAS No. 6381-92-6

The appropriate EDTA type should be selected according to the required pH, formulation system, and final application.

Key Properties of EDTA-4Na

EDTA-4Na provides several advantages:

Strong chelating ability
Effective metal ion control
Good water solubility
Suitable for alkaline formulations
Improves detergent performance
Helps control hardness ions
Suitable for industrial water treatment
Suitable for cleaning formulations
Widely used industrial additive

Storage and Handling of EDTA-4Na

EDTA-4Na should be stored in a dry and well-ventilated area. The product should be protected from moisture to maintain good powder flow and product quality.

Customers should confirm compatibility with other formulation ingredients before large-scale production.

Why Choose Our EDTA-4Na?

We supply EDTA-4Na (Tetrasodium EDTA) for international customers requiring reliable chelating agents from China.

Our EDTA-4Na is suitable for:

Water treatment companies
Detergent manufacturers
Industrial cleaning producers
Chemical formulators
Textile manufacturers
Distributors and importers

Technical documents including COA, SDS, and TDS can be provided according to customer requirements.

We support customers with product information, export documentation, and reliable chemical supply solutions.

EDTA-4Na Supplier from China

If you are looking for a reliable EDTA-4Na supplier from China, we can provide Tetrasodium EDTA for water treatment, detergent, cleaning, and industrial applications.

Please provide your required grade, quantity, application, and destination. We can provide specifications, COA, SDS, TDS, quotation, and export information.

Frequently Asked Questions About EDTA-4Na

What is EDTA-4Na?

EDTA-4Na is Tetrasodium EDTA, a chelating agent used to bind metal ions in industrial and chemical formulations.

What is the CAS number of EDTA-4Na?

The CAS number of EDTA-4Na is 64-02-8.

What is EDTA-4Na used for?

EDTA-4Na is used in water treatment, detergents, cleaning products, textile processing, chemical manufacturing, and other industrial applications.

Is EDTA-4Na a surfactant?

No. EDTA-4Na is not a surfactant. It is a chelating agent used mainly for controlling metal ions.

Is EDTA-4Na used in detergents?

Yes. EDTA-4Na is widely used in detergent formulations to improve cleaning performance by controlling hardness ions.

What is the difference between EDTA-2Na and EDTA-4Na?

EDTA-4Na is mainly used for industrial, detergent, and water treatment applications, while EDTA-2Na is more common in cosmetics, food, and specialty formulations.

Request an EDTA-4Na Quotation

Looking for a reliable EDTA-4Na (Tetrasodium EDTA) supplier from China?

We provide Tetrasodium EDTA for water treatment, detergent, cleaning, and industrial applications.