Tetrasodium ethylenediaminetetraacetate

Tetrasodium ethylenediaminetetraacetate (EDTA-4Na) is an important organic chelating agent, a white powder, highly soluble in water, and capable of forming stable water-soluble complexes with various metal ions. It is mainly used as a water softener, detergent auxiliaries, textile printing and dyeing auxiliaries, fixing solutions for photographic materials, styrene-butadiene rubber activators, cosmetic additives, food additives, and anticoagulants in pharmaceuticals. It improves washing performance, prevents metal interference, and treats water quality through chelation (locking in metal ions).

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Key features

Density (×20), g/cm³ 0.83 g/cm³ Molecular Weight 380.17 Solubility Easily soluble in water

Product Application

This product is a widely used metal ion chelating agent. It can be used in textile dyeing, water treatment, color photosensitive materials, pharmaceuticals, daily chemicals, papermaking, and other industries as an additive, activator, water purifier, metal ion masking agent, and activator in the styrene-butadiene rubber industry. In the dry-process acrylic fiber industry, it counteracts metal interference, improving the color and brightness of dyed fabrics. It can also be used in liquid detergents to improve washing quality and enhance washing effects.

Storage Instructions

Store in its original sealed container in a cool, dry, and well-ventilated place, away from food and incompatible substances, and avoid direct sunlight and high temperatures to maintain its performance stability and prevent moisture absorption and clumping. Generally, room temperature storage is required, but specific conditions may vary depending on the product batch. However, following the principles of sealing, avoiding light, dryness, and ventilation is a universal approach.

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Chemical Name	Tetrasodium Ethylenediaminetetraacetate (EDTA 4Na)
Chemical Formula	C₁₄H₂₃N₃O10
CAS Number	64-02-8
Appearance	White Powder
Melting Point	>300 °C
Boiling Point	>300 °C

Tetrasodium ethylenediaminetetraacetate

EDTA (ethylenediaminetetraacetic acid)

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