Description

Edta-2Naco Tetrahydrate is a high-purity, water-soluble chelating agent widely used in industrial and pharmaceutical 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 an essential component for manufacturers in sectors requiring precise metal ion control, such as pharmaceuticals, personal care, and water treatment. The compound is supplied as a stable tetrahydrate salt, ensuring consistent performance and ease of handling in formulation processes.

Application

• Pharmaceutical Manufacturing: Used as a stabilizing agent in injectable solutions, ophthalmic preparations, and topical products to chelate trace metals that can catalyze degradation.
• Personal Care & Cosmetics: Acts as a chelator in shampoos, lotions, and creams to improve shelf life by inactivating metal ions that can cause rancidity or color changes.
• Industrial Cleaning & Descaling: A key ingredient in industrial cleaners and boiler descaling agents for dissolving and removing limescale and rust deposits.
• Water Treatment: Employed to control water hardness by sequestering calcium and magnesium ions, preventing scale formation in cooling towers and industrial water systems.
• Laboratory & Analytical Chemistry: Serves as a standard reagent in complexometric titrations (EDTA titrations) for the quantitative analysis of metal ions.
• Textile Processing: Used in dyeing and finishing processes to complex with metal ions in water, ensuring consistent color quality and preventing fabric damage.
• Food Processing (where compliant): Functions as a preservative and color/ flavor stabilizer in certain food products by chelating pro-oxidant metals.
• Agrochemical Formulations: Enhances the stability and efficacy of certain pesticide and fertilizer solutions by chelating contaminant metals.

Basic Information

Product Name	Edta-2Naco Tetrahydrate
CAS No.	15137-09-4
Molecular Formula	C10H14N2Na2O8 • 4H2O
Molecular Weight	416.21 g/mol (Tetrahydrate)
Synonyms	Disodium EDTA Dihydrate (common misnomer for tetrahydrate), Edetate Disodium Salt Tetrahydrate, Disodium Edetate Tetrahydrate, EDTA Disodium Salt Tetrahydrate, (Ethylenedinitrilo)tetraacetic Acid Disodium Salt Tetrahydrate, Disodium Dihydrogen Ethylenediaminetetraacetate Tetrahydrate, Complexon III, Titriplex® III, Sequestrene® NA2
EINECS	Contact for details

Quality Control

Our Edta-2Naco Tetrahydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and heavy metal content. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, loss on drying, and residue on ignition. The product can be supplied to meet various industry standards, including USP-NF, Ph. Eur., and FCC grades, upon request.

Storage

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

Specification

Item	Specification
Appearance	White, crystalline powder
Identification (IR)	Conforms
Assay (Titration)	98.0% - 102.0% (on anhydrous basis)
pH (5% Solution)	4.0 - 5.0
Loss on Drying	19.0% - 22.0%
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 50 ppm
Water Insoluble Matter	≤ 0.1%

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