GLDA 4 NA

CAS Number:

519242-59-0 (for the active substance). It is often supplied as an aqueous solution

Chemical / INCI Name:

Tetrasodium Glutamate Diacetate

Molecular Formula:

C9H9NO8Na4

Molecular Weight:

351.14 g/mol

Common Form:

Clear to light yellow liquid, typically at 40-50% concentration in commercial solutions

Uses:

Primary Applications: (Its uses are similar to EDTA but with significantly higher biodegradability)

· Detergents & Cleaning Products: A primary chelating agent in household and industrial cleaners (e.g., dishwashing detergents, laundry detergents, surface cleaners) to control water hardness and enhance the effectiveness of cleaning agents.

· Personal Care & Cosmetics: Used in skincare products and shampoos to prevent limescale (water hardness) and stabilize formulations. Considered gentle on the skin.

· Water Treatment: To remove or deactivate heavy metal ions in water systems.

· Agriculture: As a chelating agent in liquid fertilizers to improve the availability of micronutrients to plants.

· Textile & Paper Industries: In bleaching and processing to control metals.

What does Tetrasodium GLDA do in a formulation?

• Highly Effective Chelating Agent: Forms stable complexes with di- and trivalent metal ions (especially Ca²?, Mg²?, Fe³?)
• Builder & Water Softener: Improves detergent performance by removing calcium and magnesium ions that interfere with cleaning agents
• Stabilizer: Protects formulations from metal-catalyzed degradation (e.g., oxidation, discoloration).
• Potentiator for Preservatives: Can enhance the effectiveness of preservatives in personal care products.
• Key Differentiator: Biodegradable up to 80-100% according to standard tests (e.g., OECD 301), making it an environmentally preferred choice compared to non-biodegradable EDTA.

Safety Profile:

· Hazard Classification: Generally considered non-irritating or mildly irritating. It is typically classified as non-hazardous under GHS at common commercial concentrations. Always refer to the specific product SDS.

· Skin/Eye Exposure: A 50% solution may cause mild eye irritation. Rinse with water. May cause mild skin irritation upon prolonged contact.

· Ecotoxicity: Low toxicity to aquatic organisms. Its high biodegradability prevents environmental accumulation.

· Required PPE: Protective gloves and safety glasses for routine handling. Eye wash/shower facilities for handling large quantities.

· Storage: Store in sealed containers in a cool, well-ventilated place. Stable under normal storage conditions.

Technical profile: