EDTA-4Na, also known as Tetrasodium Ethylenediaminetetraacetate, is a high-purity, highly effective chelating agent widely used across industrial, cosmetic, pharmaceutical, water-treatment, detergent, agricultural, and laboratory applications. With a minimum content of ≥99.0%, EDTA-4Na provides exceptional stability, superior chelating capacity, and consistent performance, making it one of the most reliable complexing agents available in the global chemical market.

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1. Chemical Identity and Characteristics

Chemical Name: Tetrasodium EDTA

Chemical Formula: C₁₀H₁₂N₂Na₄O₈

Purity: ≥99.0%

Appearance: White, free-flowing crystalline powder

Solubility: Easily soluble in water

pH (1% solution): Alkaline

Stability: High stability under temperature variations, UV exposure, and wide pH ranges

EDTA-4Na binds with multivalent metal ions—such as calcium (Ca²⁺), magnesium (Mg²⁺), iron (Fe²⁺/Fe³⁺), and copper (Cu²⁺)—forming stable, inactive complexes. This property ensures better product stability, enhanced cleaning efficiency, and prevention of unwanted reactions caused by free metal ions.

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2. Key Properties and Functional Advantages

(a) Superior Chelating Strength

The primary advantage of EDTA-4Na is its unparalleled chelating ability. It effectively traps metal ions, disables their catalytic activity, and prevents their interference in various chemical formulations. This improves clarity, stability, and functionality in a wide range of applications.

(b) High Water Softening Capability

EDTA-4Na neutralizes hardness-causing minerals in water. This makes detergents and cleaning agents much more efficient, especially in areas where hard water is common.

(c) Enhanced Stability in Formulations

The compound remains stable under:

High temperatures

Strong alkaline environments

Long-term storage

Light exposure

This stability ensures predictable and consistent performance across all industries.

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3. Major Industrial Applications

1. Water Treatment Industry

EDTA-4Na is widely used for industrial and environmental water treatment.
Its functions include:

Heavy metal removal (Pb, Fe, Cu, Hg, Cr, Ni)

Scale prevention in boilers and cooling towers

Maintaining stable water chemistry

Assisting in RO membrane protection

The ability to bind with toxic metals makes it a key component in effluent treatment plants (ETP) and industrial wastewater management systems.

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2. Household & Industrial Detergents

EDTA-4Na is an essential ingredient in high-performance detergents, including:

Laundry detergents

Dishwashing liquids

Floor cleaners

Industrial degreasers

Benefits include:

Enhanced cleaning efficiency

Reduced formation of soap scum

Improved foaming stability

Prevention of mineral deposits on fabrics and surfaces

 

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3. Cosmetics & Personal Care Products

Due to its ability to stabilize formulations, EDTA-4Na is widely used in:

Shampoo and conditioner

Facial cleansers

Body wash

Lotions and creams

Serums and gels

It preserves product texture, prevents discoloration or rancidity, and enhances the effectiveness of preservatives by neutralizing metal contaminants.

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4. Textile & Dyeing Industry

In textile processing, EDTA-4Na:

Prevents dye precipitation

Ensures uniform color brightness

Enhances dye fixation

Reduces metal-ion-induced stains

This improves both product quality and process efficiency in textile dye houses.

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5. Agriculture & Fertilizer Formulations

EDTA-4Na is used to produce chelated micronutrient fertilizers such as:

EDTA-Zn

EDTA-Fe

EDTA-Mn

EDTA-Cu

Chelated fertilizers improve nutrient uptake, promote healthier plant development, and help maintain soil balance.

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6. Pharmaceuticals & Laboratory Use

EDTA-4Na serves important roles in:

Blood anticoagulants

Buffering solutions

Drug stabilization

Diagnostic reagents

Its high purity makes it suitable for controlled laboratory conditions and sensitive pharmaceutical applications.

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7. Paint, Ink & Coating Industry

Metal ions can cause discoloration, viscosity changes, and instability in paints and coatings. EDTA-4Na prevents such reactions by:

Stabilizing pigments

Preventing precipitation

Enhancing shelf life

Maintaining uniform color consistency

 

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4. Key Benefits of EDTA-4Na (≥99% Pure)

Strong chelating properties

High solubility and fast action

Long-term formulation stability

Prevents discoloration and degradation

Reduces water hardness and scaling

Enhances cleaning and washing performance

Safe and consistent for industrial use

Effective heavy-metal neutralizer

 

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5. Storage & Handling

Store in a cool, dry, well-ventilated area

Keep container tightly sealed

Protect from moisture, as it is hygroscopic

Avoid inhalation; use protective gloves and masks

 

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Conclusion

EDTA-4Na (Content ≥99.0%) is a premium-grade, highly versatile, and strongly effective chelating agent trusted across a wide spectrum of industries. Its ability to stabilize formulations, improve product efficiency, neutralize metal ions, and enhance water quality makes it an indispensable chemical in modern manufacturing and processing. Whether in water treatment, detergents, cosmetics, agriculture, textiles, pharmaceuticals, or coatings—EDTA-4Na stands as a benchmark for purity, reliability, and performance.