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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, with the CAS number 65501-24-8. The molecular formula is Câ‚â‚€Hâ‚₃Nâ‚‚O₈K₃·2Hâ‚‚O, and its molecular weight is approximately 442.54 g/mol. This compound is available in ultra-pure grade, with a minimum purity of 99.0%.
The pH of a 0.1M aqueous solution at 25°C ranges from 7.0 to 9.0, making it suitable for various biological and analytical procedures. It is highly soluble in water, and the solubility test confirms its quality. The melting point is around 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 reactions. In medical testing, it serves as an anticoagulant in blood collection tubes, including vacuum-sealed anticoagulation tubes, and is essential for whole blood analyzers. Its stability and effectiveness make it a preferred choice in laboratory settings.
For storage, it should be kept at room temperature (RT), away from moisture and direct sunlight. Proper handling and storage ensure long-term stability and performance. Whether for research or clinical use, this compound plays a critical role in maintaining the accuracy and reliability of various scientific processes.