Description

Ethylenediaminetetraacetic Acid Trisodium Salt Trihydrate is a high-purity, water-soluble chelating agent widely used in industrial and laboratory applications. Its primary value lies in its exceptional ability to sequester di- and trivalent metal ions, preventing unwanted precipitation and catalytic activity. This makes it a critical component for manufacturers and researchers in sectors requiring precise metal ion control, such as pharmaceuticals, cosmetics, and analytical chemistry.

Application

• Pharmaceutical Manufacturing: Used as a stabilizing agent in injectable formulations and ophthalmic solutions to chelate trace metals that can catalyze degradation.
• Cosmetics & Personal Care: Acts as a preservative enhancer and sequestrant in creams, lotions, and shampoos to improve shelf-life and product stability.
• Analytical Chemistry & Laboratory Reagent: Serves as a key component in buffer solutions, complexometric titrations, and as a masking agent in various spectroscopic techniques.
• Industrial Cleaning & Descaling: Effective in boiler and cooling water treatment formulations to control scale formation by binding calcium and magnesium ions.
• Textile Processing: Utilized to prevent metal-ion interference during dyeing and finishing processes, ensuring consistent color quality.
• Food Processing (where compliant): Employed as a sequestrant to maintain color, flavor, and texture stability in certain food products.

Basic Information

Product Name	Ethylenediaminetetraacetic Acid Trisodium Salt Trihydrate
CAS No.	65501-25-9
Molecular Formula	C10H13N2Na3O8 • 3H2O
Molecular Weight	442.21 g/mol (Trihydrate)
Synonyms	EDTA Trisodium Salt Trihydrate; Trisodium EDTA Trihydrate; Edetate Trisodium Trihydrate; Trihydrated Trisodium Ethylenediaminetetraacetate; N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine] trisodium salt trihydrate; Titriplex® III; Sequestrene® NA3; (Ethylenedinitrilo)tetraacetic acid trisodium salt trihydrate
EINECS	Contact for details

Quality Control

Our Ethylenediaminetetraacetic Acid Trisodium Salt Trihydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for demanding applications. Certificates of Analysis (COA) documenting identity, assay, purity, and other critical parameters are available 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); ensure the original container is securely sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking and reduced effectiveness.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (5% Solution)	4.0 - 5.5
Water (Karl Fischer)	11.0 - 14.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.05 %

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