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Home » Products » Water Treatment Chemicals and Boicides » Tetrasodium Glutamate Diacetate /GLDA.4Na CAS 51981-21-6



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Tetrasodium Glutamate Diacetate /GLDA.4Na CAS 51981-21-6

  • GLDA.4Na; Tetrasodium Dicarboxymethyl Glutamate

  • 20MT for 250kgs drum or 25MT for 1250kgs IBC



Content: 38%, 47%


Tetrasodium Glutamate Diacetate, also known as Tetrasodium Dicarboxymethyl

Glutamate, GLDA-Na4 for short. GLDA-Na4 is a new type of green degradable chelating agent, can replace traditional phosphonates, EDTA, NTA. The product is suit for a wide pH range, with high solubility, high temperature resistance, strong detergency, no ecological toxicity, has synergistic

effect with fungicides, and no irritation to skin and eyes.





Light yellow   viscous liquid

Active matter   content

47%, 38%

PH value




Density (@20℃),



It is suitable for cleaning agents, detergents, textile auxiliaries, daily chemicals, oilfield water treatment, pulp and paper auxiliaries, metal surface treatment, etc.

Property & Advantage

1. High solubility under wide pH

GLDA has good solubility in strong acid to high alkali systems, and has better advantages for formulating high active ingredients and low water content formulation systems. For example, in the high-alkali system in industrial cleaning, the acid cleaning system and the high-concentration system have very good solubility.

2. Good high temperature stability

By thermogravimetric analysis, GLDA is tested at 170°C for 6 hours or at 150°C for a week. GLDA has no decomposition and is extremely stable. Compared with other chelating agent products at 100°C, it has the best performance.

3. Strong chelating ability

For the formulation, it is very important to choose a chelating agent with sufficient chelating ability. The chelating ability is related to different metal ions and the pH value of the system. For the binding force of a specific metal, we can see it from the stability equilibrium constant. GLDA has a good effect on all kinds of difficult-to-clean calcium scales or difficult-to-clean equipment.

4 Has the effect of antiseptic and synergistic

Because GLDA has natural amino acid components, it has a stronger binding ability with animal cell walls, which can effectively destroy the electrolyte balance of cells, inhibit cell activity, and thus play a role in antiseptic and synergistic. After experiments, we found that GLDA has obvious antiseptic and sterilization synergies in many fungicides, which can save 20%-80% of the usage. For example, we use the preservative-imidazolidinyl urea and GLDA compound to observe its bactericidal effect on Pseudomonas aeruginosa, and it turns out that after compounding with GLDA, the usage can be reduced by 50%.

Packing and Storage

Packing    In 25kgs, 250kgs, 1250kgs drums.

Storage    Store in cool place. Sealed and stored in a dry and ventilated warehouse, avoid mixed storage with acidic and odorous items, prevent exposure to the sun and rain.


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