Description

Ethylenediaminetetraacetic Acid Dipotassium Salt Dihydrate is a high-purity, water-soluble chelating agent widely used in analytical chemistry and life sciences. Its primary value lies in its ability to sequester di- and trivalent metal ions with high affinity, preventing interference in sensitive reactions and processes. This product is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and diagnostic industries who require precise control over metal ion concentrations.

Application

• Analytical Chemistry: Used as a primary standard and complexometric titrant for the determination of metal ions via EDTA titration.
• Molecular Biology & Biochemistry: A key component in buffer solutions (e.g., TE buffer) to inactivate metal-dependent nucleases and protect DNA/RNA integrity during extraction and storage.
• Pharmaceutical Formulations: Acts as a stabilizer and sequestering agent in injectable and ophthalmic solutions to enhance shelf-life and compatibility.
• Clinical Diagnostics: Employed as an anticoagulant in blood collection tubes (K2EDTA) for hematological testing, preserving cell morphology.
• Industrial Processes: Serves as a chelating agent in cleaning formulations, water treatment, and textile processing to control scale and metal ion contamination.
• Cell Culture & Microbiology: Incorporated into media and solutions to chelate trace metals that may inhibit microbial growth or cell proliferation.

Basic Information

Product Name	Ethylenediaminetetraacetic Acid Dipotassium Salt Dihydrate
CAS No.	25102-12-9
Molecular Formula	C10H14K2N2O8 • 2H2O
Molecular Weight	404.46 g/mol
Synonyms	Dipotassium EDTA Dihydrate; K2EDTA Dihydrate; Edetate Dipotassium Dihydrate; Dipotassium Edetate Dihydrate; Ethylenediaminetetraacetic Acid Potassium Salt Dihydrate; (Ethylenedinitrilo)tetraacetic Acid Dipotassium Salt Dihydrate; Sequestrene K2; Komplexon II
EINECS	Contact for details

Quality Control

Our Ethylenediaminetetraacetic Acid Dipotassium Salt Dihydrate is manufactured under a quality management system and undergoes rigorous analytical testing to ensure batch-to-batch consistency and compliance with relevant standards. Each lot is supplied with a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We can supply material suitable for research, diagnostic, and pharmaceutical applications, with specifications aligned to in-house or compendial standards (e.g., USP, EP) upon request.

Storage

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

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	98.5 - 101.0 %
pH (5% Solution)	4.0 - 5.0
Water (Karl Fischer)	8.0 - 9.5 %
Heavy Metals (as Pb)	≤ 10 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.