Ethylenediaminetetraacetate Edta
CAS Number: 60-00-4
HS Code: 2921219000
Physical state: Solid, crystalline
Color:white
EINECS:205-358-3
PACKING:25KG/BAG
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EDTA-ACID
EDTA (Ethylenediaminetetraacetic acid) is a chelating agent widely used in various fields such as medicine, food industry, and laboratory research. Its ability to form stable complexes with metal ions makes it useful for binding and removing metals like calcium and iron from solutions.
Chemical Properties and Structure
It is a polyamino carboxylic acid with the chemical formula C10H16N2O8. It appears as colorless, water-soluble crystals. it's structure includes multiple donor atoms (nitrogen and oxygen), which can form strong complexes with metal ions, preventing them from participating in unwanted chemical reactions.
|
Item |
SPECIFICATION |
RESULTS |
| CONTENT | 99.0%MIN | 99.4% |
| CHLORIDE |
0.01%MAX |
0.002% |
| PH ( 1%water solution) |
2.8-3.0 |
2.91 |
| Sulphate | 0.05% MAX | 0.1% |
| CHEI ATE VALUE(mg CaCo3/g) |
339min |
340 |
| IRON (Fe) CONTENT |
0.001%MAX | 0.0001% |
| HEAVY METAL (pb) |
0.001%MAX | - |
| APPEARANCE | WHITE POWDER | WHITE CRYSTAL POWDER |
Applications
Medical Use: EDTA is used in chelation therapy to treat heavy metal poisoning (like lead or mercury). It binds to the metals in the bloodstream, which are then excreted from the body.
Laboratory Use: In biochemistry and molecular biology, EDTA is used to sequester divalent metal ions such as Ca2+ and Mg2+, which are necessary cofactors for many enzymes. By binding these ions, EDTA can inhibit enzyme activity, which is useful in experiments where controlling enzymatic reactions is necessary.
Food Industry: EDTA is used as a preservative and stabilizer. It prevents discoloration, rancidity, and loss of texture in foods by binding metal ions that catalyze oxidative reactions. Common applications include salad dressings, mayonnaise, and canned seafood.
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