Home » Products » Other chemicals » Industrial grade Daily chemical grade 38% 47% 90% Tetrasodium glutamate diacetate CAS 51981-21-6 GLDA-Na₄

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Industrial grade Daily chemical grade 38% 47% 90% Tetrasodium glutamate diacetate CAS 51981-21-6 GLDA-Na₄

Synonyms：GLDA
Tetrasodium N,N-Bis(2-Carboxymethyl) Glutamate
Glutamic Acid Diacetic Acid Tetrasodium Salt
Formula:C9H14NNaO8
Weight:287.2
HS Code:2922429000
Grade:Industrial grade，Daily chemical grade
38%，47%，90%
Hazard Class:General Chemical

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Model:
51981-21-6
Brand:
futurechemical
Code:
51981-21-6

Product Description

Certificate of Analysis-COA

liquid

Items	GLDA-Na4 solution
Appearance	Light yellow transparent liquid
Active Content /%	38%; 47%
pH value	10.0 -12.0
Density(20℃) g/cm³	≥1.2

Powder

Inspection Item	Indication Range	Check Result
Appearance	White to light yellow powder	Light yellow powder
Solid %	≥90.0	95.0
Purity %	≥75.0	77.0
Bulk density (g.cm³)	≥0.5	0.62
Moisture %	≤10.0	5.0
pH(10g/L)	11.0-12.0	11.5

Applications

1.Biodegradable Chelating Agent: Built on renewable L-glutamic acid (CAS 51981-21-6), it is a readily biodegradable chelator that holds calcium, magnesium, iron and copper ions in solution and keeps working from acidic to alkaline pH, so formulators gain greener metal ion control.

2.Green Replacement For EDTA: It substitutes for EDTA and NTA in many formulations at comparable use levels, pairing strong chelation strength with lower environmental persistence so brands can meet tighter regulations and rising buyer demand for eco-friendly chemistry.

3.Detergent And Cleaning Formulations: Used in laundry liquids and powders, dishwashing liquids, automatic dishwasher detergents, all-purpose cleaners, degreasers and CIP systems, where it softens wash water, frees surfactants to work at full strength and prevents mineral scale on surfaces and machine parts.

4.Personal Care Stabilizer: In shampoos, body washes and liquid soaps it chelates trace metal ions that would otherwise degrade active ingredients or shift colour, while supporting preservative efficacy, formula clarity and stable pH in aqueous systems.

5.Industrial Process Chelation: Also applied in textile bleach stabilizing, dyeing metal ion control, pulp bleaching, metal cleaning and plating pretreatment, boiler and cooling water treatment, oilfield scale inhibition and chelated micronutrient fertilizer production.

Production Line

We operate 10+ production lines, backed by a well-stocked raw material warehouse.

Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.

Every order follows a standardized workflow. Key quality control points are set at every stage.

Factory Area

Standardized Process Flow

Production Capacity

Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.

Tetrasodium glutamate diacetate 51981-21-6 GLDA-Na₄ C9H14NNaO8 GLDA Tetrasodium N N-Bis(2-Carboxymethyl) Glutamate Glutamic Acid Diacetic Acid Tetrasodium Salt tetrasodium glutamate diacetate cleaning tetrasodium glutamate diacetate cosmetic tetrasodium glutamate diacetate water treatment

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

Send the water analysis, the system type and the operating conditions. Our sales team replies with the product selection, dosing recommendation and commercial details.

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