EDTA
Tetrasodium Salt
EDTA Tetrasodium Salt is the tetrasodium salt form of
ethylenediaminetetraacetic acid, with the chemical formula C??H??N?Na?O?.
It is a white, water-soluble, crystalline powder or granule widely used as a chelating
agent to sequester metal ions like calcium, magnesium, and iron. Its
ability to form stable complexes with metal ions makes it highly valuable in
industrial, pharmaceutical, cosmetic, and cleaning formulations. It helps
improve product stability, prevent discoloration, soften water, and control
metal-catalyzed degradation.
Applications
of EDTA Tetrasodium Salt
Industry |
Application |
Water Treatment |
|
Detergents & Cleaners |
Enhances cleaning power by softening water |
Cosmetics & Personal Care |
Prevents metal-induced spoilage in creams, shampoos,
lotions |
Textile & Dyeing |
Controls metal ion interference during dyeing processes |
Pharmaceuticals |
Stabilizer in formulations; used in ophthalmic and
injectable solutions |
Food Industry |
Chelating agent to preserve color, flavor, and texture
(when food grade) |
Laboratory Chemicals |
Used in buffers, analytical chemistry, and titrations |
Agriculture |
Stabilizes metal micronutrients in foliar sprays and
fertilizers |
Features
with Practical Uses
Feature |
Use / Benefit |
Strong chelating power |
Sequesters metal ions (Ca²?, Mg²?, Fe³?) to prevent scale or degradation |
High water solubility |
Easily blends into aqueous solutions and formulations |
Alkaline nature (pH ~11–12) |
Suitable for use in alkaline formulations (e.g.,
industrial cleaners) |
Non-toxic in controlled amounts |
Safe for use in cosmetics and pharmaceuticals (check
regulatory standards) |
Improves product stability |
Prevents oxidation, discoloration, and viscosity change in
formulations |
White crystalline or powder form |
Easy to handle, store, and measure |
Compatible with surfactants |
Enhances detergent and personal care product effectiveness |
Biodegradable (slowly) |
Lower environmental persistence compared to phosphates |
Top 10
FAQs About EDTA Tetrasodium Salt
Key
Points Summary
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