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Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
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Polycarboxylic Antiscalant and Dispersant
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Surfactant & Others

KR-GCA Green Chelating Agent
(L-glutamic Acid,N,N-diacetic Acid, Tetrasodium Salt)

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


Product Features

KR-GCA Green Chelating Agent is mainly prepared from plant-based raw material,L-glutamate.

KR-GCA Green Chelating Agent is environmental friendly, safe and reliable in utilization, easily biodegradable.

KR-GCA Green Chelating Agent 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.

KR-GCA Green Chelating Agent 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

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

Applications & Usage

KR-GCA Green Chelating Agent shows excellent chelating ability, and can replace the traditional chelating agent.

Typical chelation value to several kinds of metal ion:

45 mg Ca2+/g KR-GCA Green Chelating Agent

72mg Cu2+/g KR-GCA Green Chelating Agent

75 mg Zn2+/g KR-GCA Green Chelating Agent

Package & Storage

25L Drum 200L Drum 1000L IBC
200L Drum packaging
Storage for ten months in shady room and dry place.

Hazard & Safety Precaution

Hazard Information Satety Precaution

Corrosive, Class 8, UN 3265 Corrosive, Class 8, UN 3267

Wear protective gloves Wear protective goggles Wear protective clothing

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