Description

Edta Tetrasodium Salt: Hydrate CAS NO 194491-31-1 is a highly effective chelating agent and sequestrant, widely recognized for its superior ability to bind and deactivate di- and trivalent metal ions. This property is critical for preventing unwanted metal-catalyzed reactions, stabilizing formulations, and enhancing process efficiency across numerous industries. It is an essential raw material for manufacturers in the detergent, personal care, textile processing, and water treatment sectors who require reliable control over water hardness and metal ion interference.

Application

• Detergent & Cleaning Formulations: Acts as a primary builder to sequester calcium and magnesium ions, enhancing surfactant efficiency and preventing scale formation.
• Personal Care & Cosmetics: Used as a stabilizer and chelating agent in shampoos, liquid soaps, and creams to improve shelf life and product clarity.
• Textile Processing: Employed in dyeing and bleaching baths to complex with metal ions, ensuring consistent color quality and preventing fabric degradation.
• Industrial Water Treatment: Serves as a scale and corrosion inhibitor in boiler and cooling water systems by chelating scale-forming cations.
• Pulp & Paper Industry: Enhances bleaching processes and improves pulp brightness by chelating transition metals like iron and manganese.
• Agriculture & Micronutrient Fertilizers: Used in formulations to improve the stability and bioavailability of micronutrient chelates for plant uptake.
• Laboratory & Analytical Chemistry: Functions as a key component in buffer solutions and as a titrant in complexometric titrations for water hardness testing.

Basic Information

Product Name	Edta Tetrasodium Salt: Hydrate
CAS No.	194491-31-1
Molecular Formula	C10H12N2Na4O8·xH2O
Molecular Weight	380.17 g/mol (Anhydrous basis)
Synonyms	Ethylenediaminetetraacetic Acid Tetrasodium Salt Hydrate; EDTA-4Na Hydrate; Tetrasodium EDTA Hydrate; Edetate Sodium; (Ethylenedinitrilo)tetraacetic Acid Tetrasodium Salt; N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine] Tetrasodium Salt; Sequestrene NA4; Versene 100
EINECS	Contact for details

Quality Control

Our Edta Tetrasodium Salt Hydrate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and specialty applications. While we offer various grades, including technical and purified forms, a comprehensive Certificate of Analysis (COA) detailing assay, purity, and impurity profiles is available for every shipment upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); therefore, the original container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0%
pH (1% Solution)	10.5 - 11.5
Water Content (KF)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.