Description

Ethylenediaminetetraacetic Acid Tripotassium Salt Dihydrate is a highly water-soluble chelating agent, primarily valued for its ability to sequester di- and trivalent metal ions in aqueous solutions. This property is critical for stabilizing formulations, preventing unwanted catalytic reactions, and controlling metal ion concentrations across a wide pH range. It is an essential raw material for manufacturers in the pharmaceutical, biotechnology, food & beverage, and industrial cleaning sectors who require reliable, high-purity chelation.

Application

• Pharmaceutical & Biotechnology: Used as a stabilizer in injectable formulations, cell culture media, and diagnostic kits to chelate trace metals that can degrade active ingredients or interfere with biochemical processes.
• Molecular Biology & Biochemistry: A key component in lysis buffers, electrophoresis buffers (e.g., TE buffer), and enzyme reaction mixtures to inhibit metal-dependent nucleases and proteases.
• Food & Beverage Industry: Employed as a preservative and sequestrant (INS 452) to maintain color, flavor, and texture by chelating metal ions that catalyze oxidation and spoilage.
• Industrial Cleaning & Detergents: Enhances the efficacy of cleaning agents by softening water through the chelation of calcium and magnesium ions, preventing scale formation.
• Cosmetics & Personal Care: Acts as a stabilizer in creams, lotions, and shampoos to prevent rancidity and discoloration caused by metal ion contamination.
• Analytical Chemistry: Serves as a titrant in complexometric titrations and a masking agent in various analytical procedures to eliminate interference from specific metal ions.

Basic Information

Product Name	Ethylenediaminetetraacetic Acid Tripotassium Salt Dihydrate
CAS No.	65501-24-8
Molecular Formula	C10H12K3N2O8 · 2H2O
Molecular Weight	466.50 g/mol (Dihydrate)
Synonyms	Tripotassium EDTA Dihydrate; EDTA Tripotassium Salt Dihydrate; K3EDTA Dihydrate; Tripotassium Edetate Dihydrate; Edetate Tripotassium Salt Dihydrate; Tripotassium Ethylenediaminetetraacetate Dihydrate; N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine] tripotassium salt dihydrate; Sequestrene K3
EINECS	Contact for details

Quality Control

Our Ethylenediaminetetraacetic Acid Tripotassium Salt Dihydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metals, and loss on drying are available upon request to support your quality assurance protocols.

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) and must be kept in a low-humidity environment to prevent caking and maintain stability. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	98.0% - 102.0% (on anhydrous basis)
pH (5% Solution)	9.0 - 10.0
Loss on Drying	7.0% - 9.0%
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.05%
Sulfate (SO4)	≤ 0.05%

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