**Product Name:** HEDTA; HEEDTA; N-Carboxymethyl-N’-(2-hydroxyethyl)-N,N’-ethylenediglycine; N-(2-Hydroxyethyl)ethylenediaminetriacetic Acid
**Alternative Names:** Aminoethylethanolamine triacetic acid; N-hydroxyl Ethylenediaminetriacetic acid; N-(2-hydroxyethyl)ethylenediaminetriacetic acid; N-(2-hydroxyethyl)ethylenediamine-N,N,N-triacetic acid; Hydroxyethylethylenediamine Triacetic acid; N-di-hydroxyethyl-ethylenediaminetriacetic acid
**CAS Number:** 150-39-0
**Molecular Formula:** Câ‚â‚€Hâ‚₈Nâ‚‚O₇
**Molecular Weight:** 278.26 g/mol
**Grade:** BR (Bench Reagent)
**Purity:** ≥98.0%
**Water Solubility Test:** Qualified
**Iron Content:** ≤0.001%
**Ash Residue:** ≤0.1%
**Description:**
This is a white crystalline powder with good solubility in hot water and ethanol, as well as in caustic solutions. It is only slightly soluble in cold water. The melting point is approximately 212°C.
**Safety Information:**
There is potential for carcinogenicity, so proper handling and safety precautions are recommended. This compound is irritating to the skin and eyes, so protective gloves and goggles should be used during handling.
**Applications:**
HEDTA is primarily used in biochemical research as an aminocarboxylate chelating agent. It can form stable complexes with various metals, especially in alkaline conditions (pH 8–11), and is effective in forming complexes with rare earth elements. It is commonly used in complexometric titrations for calcium determination and as a metal masking agent. Additionally, it plays a role in the purification of rare earth elements and is utilized in the textile and pharmaceutical industries for preservation purposes.
**Storage:**
Store in a cool, dry place, away from direct sunlight and incompatible substances. Keep container tightly closed when not in use.
**Usage Note:**
This product is intended for laboratory and industrial applications. Always follow local regulations and safety guidelines when handling chemicals.
**Note:** This information is provided for general reference and may not cover all safety or regulatory requirements. Please consult the latest material safety data sheet (MSDS) for complete details.
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