Tetrasodium Glutamate Diacetate (GLDA) is a 100% biodegradable, high-performance chelating agent (sequestrant) derived from sustainable, renewable raw materials. Synthesized from L-glutamic acid—a food-approved amino acid produced via the biochemical conversion of vegetable matter—it represents the next generation of “green” chemistry. As a powerful alternative to synthetic phosphonates and EDTA, it offers a superior environmental profile without compromising on technical performance in personal care, home care, and industrial applications.
Key Benefits and Performance
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The “Eco-Safe” Chelator: Unlike EDTA, which is persistent in the environment, GLDA is readily biodegradable. It allows formulators to meet strict “Green” and “Eco-label” standards while maintaining high product stability.
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Preservative Synergy: By binding to the metal ions (Ca2+, Mg2+) that microorganisms use to strengthen their cell walls, GLDA effectively “weakens” bacteria. This makes them significantly more susceptible to preservatives, often allowing for a reduction in total preservative concentration.
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Oxidative Stability: It sequesters transition metals like Iron (Fe3+) and Copper (Cu2+), which act as catalysts for oxidation. This prevents the rancidity of natural oils and the discoloration (yellowing) of fragrance components.
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High Solubility & Efficiency: GLDA remains highly effective and soluble even at extreme pH values and in high-electrolyte environments, preventing the formation of insoluble “soap scum” in hard water.
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Non-Toxic Profile: Derived from a food-grade amino acid, it possesses a very low toxicity profile and is non-sensitizing to the skin.
