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Technical Analysis of EDTA Tripotassium Salt Dihydrate
EDTA Tripotassium Salt Dihydrate, also known as Ethylenediaminetetraacetic acid tripotassium salt dihydrate, is a widely used chelating agent in biochemical and medical applications. Its chemical name is EDTA-3K, and the CAS number is 65501-24-8. The molecular formula is Câ‚â‚€Hâ‚₃Nâ‚‚O₈K₃·2Hâ‚‚O, with a molecular weight of 442.54 g/mol. This product is available in ultra-pure grade, ensuring high purity with a content of at least 99.0%.
The pH of a 0.1M aqueous solution at 25°C ranges between 7.0 and 9.0, making it suitable for various biological and analytical procedures. It is highly soluble in water, and its solubility test results are qualified. The melting point of this compound is approximately 182°C, and it appears as a white crystalline powder.
EDTA Tripotassium Salt Dihydrate is commonly used in biochemical research to remove trace metal ions that may interfere with enzyme-catalyzed reactions. In medical laboratories, it serves as an essential component in the preparation of anticoagulants, including anticoagulant tubes and vacuum collection tubes. It is also used in conjunction with whole blood analyzers to ensure accurate and reliable test results.
For storage, it should be kept at room temperature (RT) in a dry and cool place, away from direct sunlight. This ensures long-term stability and maintains its effectiveness for various applications. Whether for research or clinical use, this compound is a key reagent in maintaining the integrity of biological samples and improving the accuracy of diagnostic tests.