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Detergent Auxiliary

Glutamic Acid,N,N-diacetic Acid, Tetra Sodium Salt (GLDA.Na4)

CAS No. 51981-21-6 EINECS No. 257-573-7
Molecular Formula C9H9NO8Na4 Molecular Weight 351.1
Structural Formula


Product Features

GLDA.Na4 is mainly prepared from plant-based raw material,L-glutamate.

GLDA.Na4 is environmental friendly, safe and reliable in utilization, easily biodegradable.

GLDA.Na4 is a metal ion chelation agent, and can form stable water soluble complexes with metal ion. It has good solubility in wide pH range with powerful decontamination ability and can achieve synergistic effect with biocides in systems.

GLDA.Na4 can be widely used as substitute for chelation agent (e.g. NTA, EDTA, etc.) in high polymer chemistry industry, household chemical industry, pulp & paper industry, pharmaceuticals industry, aquaculture, textile dyeing and printing industry, oil field, water treatment industry, boiler cleaning, etc.

Technical Specification

Items Index
Appearance Amber transparent liquid White powder
Content, % 38.0 min 47.0 min 75.0 min
Chloride (as Cl-) % 3.0 max 3.0 max -
pH(1% water solution) 11.0~12.0 11.0~12.0 11.0~12.0
Density (20℃) g/cm3 1.30 min 1.40 min -

Applications & Usage

GLDA.Na4 shows excellent chelating ability, and can replace the traditional chelating agent.

Typical chelation value to several kinds of metal ion:

45 mg Ca2+/g GLDA.Na4

72mg Cu2+/g GLDA.Na4

75 mg Zn2+/g GLDA.Na4

Package & Storage

GLDA.Na4 Liquid GLDA.Na4 Solid
25L Drum 200L Drum 1000L IBC 25kg Bag Bulk Bag
25kg Bag 200L Drum packaging 1000L IBC packaging
Storage for 10 months in shady room and dry place.

Hazard & Safety Precaution

Hazard Information Satety Precaution

Corrosive, Class 8, UN 3265 Liquid: Corrosive, Class 8, UN 3267
Solid: Non-hazardous chemical

Wear protective gloves Wear protective goggles Wear protective clothing

Once contacted with eye and skin, flush with plenty of clean water.