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Technical Specifications
GLDA-4NA 38% Specification
| Test Items | Standard |
|---|---|
| Content (%) | 38% Min. |
| pH (10g/L, 25℃) | 11.0 — 12.0 |
| NTA (%) | ≤ 0.1% Max. |
| Appearance | Light Yellow Transparent Liquid |
GLDA-4NA 47% Specification
| Test Items | Standard |
|---|---|
| Content (%) | 47% Min. |
| pH (10g/L, 25℃) | 11.0 — 12.0 |
| NTA (%) | ≤ 0.1% Max. |
| Appearance | Light Yellow Transparent Liquid |
Basic Info
| Projects | Description |
|---|---|
| Chemical Name | N,N-bis(carboxymethyl)-L-glutamic acid tetrasodium salt |
| English Name | Tetrasodium Glutamate Diacetate |
| Abbreviation | GLDA-4NA |
| CAS Number | 51981-21-6 |
| Molecular Formula | C9H9NO8Na4 |
| Molecular Weight | 351.1 |
| Appearance | Light Yellow Transparent Liquid |
| Biodegradability | Yes (OECD 301B test) |
Product Description
Product Overview
Tetrasodium Glutamate Diacetate (N,N-bis(carboxymethyl)-L-glutamate tetrasodium, abbreviated as GLDA-4NA) is a new biodegradable chelating agent. Product is a light yellow transparent liquid, available in GLDA-4NA content 38% and 47% specifications, pH (10g/L, 25℃) 11.0-12.0, NTA content ≤0.1%. Molecular formula C9H9NO8Na4, molecular weight 351.1, CAS 51981-21-6. GLDA is a derivative of the natural amino acid glutamic acid, with excellent chelating ability and complete biodegradability, an ideal replacement for traditional chelating agents such as EDTA and NTA.
Core Advantages
- BiodegradableGLDA is fully biodegradable in natural environments, aligning with green and eco-friendly trends
- High-efficiency ChelationExcellent chelating ability for Ca²⁺, Mg²⁺, Fe³⁺, Cu²⁺, Zn²⁺ and other metal ions
- Low NTA contentNTA content ≤0.1%, far lower than traditional products, safer and more eco-friendly
- Two specifications availableAvailable in 38% and 47% content grades to meet different application needs
- Good SolubilityPale yellow transparent liquid, easy to blend and use
- Moderate AlkalinitypH 11.0-12.0, suitable for various formulation systems
Product Advantage Comparison
| Features | GLDA-4NA | EDTA |
|---|---|---|
| Biodegradability | Fully Biodegradable | Hard to Degrade |
| Environmental Friendliness | Eco-Friendly | Poses environmental accumulation risk |
| Chelating capacity (pH range) | Effective Across Wide pH Range | Performance decreases when pH > 10 |
| Skin Irritation | Low Irritation | Moderate Irritation |
Applicable Scenarios
Application Guide
Laundry, dishwashing, and personal care
Used in laundry liquid, laundry powder, dishwashing liquid, dishwasher detergent, shampoo, body wash, hand soap and other cleaning and care products.
- Chelates Ca²⁺ and Mg²⁺ ions in water to soften water quality.
- Enhances the cleaning power of detergents
- Prevents scale deposition
- Gentle and low-irritation to skin
Recommended Dosage:Recommended addition of 0.5%-2% GLDA-4NA in laundry detergent
Home Cleaning
Used in multi-purpose cleaners, floor cleaners, and other household cleaning products.
- Remove hard water stains from hard surfaces
- Enhances Detergent Performance
- Suitable for multiple cleaning formulations
- Eco-friendly and safe formula design
Recommended Dosage:For household cleaners, a recommended dosage of 0.3%–1.5% GLDA-4NA
- Store in a dry, ventilated warehouse, away from direct sunlight.
- Stack lightly, handle with care, avoid packaging damage.
- 250 kg drum, 1250 kg IBC tote, or customized as per client requirements
- Avoid mixing with strong acids, strong oxidizers, and similar substances.
- Wear protective gloves during use and avoid prolonged skin contact.
- If it enters eyes, rinse immediately with plenty of water and seek medical attention.
FAQ
This product is available in two specifications:
- GLDA-4NA 38%Content 38% Min., suitable for general washing formulas.
- GLDA-4NA 47%Content ≥47% Min., high-concentration version, suitable for applications requiring higher active ingredients
Selection suggestion: Choose the appropriate specification based on your formulation needs and application scenario, high-concentration version can reduce shipping and storage costs.
This product supports export, and available export documents include:
- Commercial Invoice
- Packing List
- Certificate of Origin (CO)
- SDS/MSDS (multi-language version)
- Certificate of Analysis (COA)
Specific MOQ and packaging specifications can be discussed with our commercial team via the inquiry form
Store in sealed original packaging, in a cool, dry, well-ventilated area; shelf life is12 MonthsStorage precautions:
- Store in a dry and ventilated warehouse, protected from direct sunlight
- Stack lightly, handle with care, avoid packaging damage
- Recommended Storage Temperature 5-35°C
GLDA-4NA offers the following advantages over traditional EDTA:
- BiodegradableGLDA is completely biodegradable by microorganisms, aligning with green environmental trends, while EDTA is difficult to degrade
- Eco-friendlyNo environmental accumulation risk
- Low IrritationLower skin irritation, suitable for personal care products
- High pH adaptabilityMaintains effective chelating capacity across a wide pH range
Send Inquiry
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