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GLDA-NA4

GLDA-Na4 is a 'chelating agent'. 
GLDA-Na4 usually appears as an odourless white powder that is soluble in water and is used as a multi-purpose, clear, liquid chelating agent and preservative booster. 
GLDA-Na4 inactivates metallic ions (charged particles) in product formulations, acting as a chelating agent. 

CAS:    51981-21-6
MF:    C9H14NNaO8
MW:    287.2
EINECS:    257-573-7

Synonyms
tetrasodium N,N-bis(carboxylatomethyl)-L-glutamate;TETRASODIUM GLUTAMATE DIACETATE;TETRASODIUM N,N-BIS(CARBOXYMETHYL)-L-GLUTAMATE;N,N-BIS(CARBOXYMETHYL)-L-GLUTAMIC ACID TETRASODIUM SALT;N,N-BIS-(CARBOXYMETHYL)-L-GLUTAMIC ACID TETRASODIUMN SALT;Glutamic acid diacetic acid, tetrasodium salt;N,N-Bis(carboxymethyl)glutamate, tetrasodium salt;L-Glutamic acid, N,N-bis(carboxymethyl)-, tetrasodium salt

Free-roaming iron and copper ions in formulations can lead to rapid oxidation. 
Using a chelating agent helps to slow this process, allowing for the creation of products with improved stability and appearance. 
GLDA-Na4 is often found in sunscreen, facial cleanser, shampoo, makeup, lotion, cleansing wipes, bar soap, and other cleaning products.
GLDA-Na4 is a high purity, versatile and readily biodegradable chelating agent based upon L-glutamic acid, a natural and renewable raw material. 

Actives: 47-50%. 
Excellent chelating effectiveness controlling metal-catalyzed decomposition. 
Reduces water hardness and prevents precipitations. 
Boosts performance of preservatives improving shelf life. 
Stabilizes the pH value and is effective in a wide pH range. 
Does not sensitize human skin. 
Completely biodegradable as compared to phosphates and phosphonates. 
Effective alternative to EDTA.

GLDA-Na4 is a liquid biodegradable chelating agent widely used in various industries, including water treatment, detergents, and personal care products. 
This tetrasodium salt of the aminopolycarboxylic acid GLDA-Na4 is highly soluble in water and exhibits excellent chelating properties, making it an effective alternative to phosphates and other environmentally concerning chelants. 
GLDA-Na4 is particularly useful in applications that require efficient sequestration of hard water ions like calcium and magnesium, preventing scale formation and enhancing cleaning performance.

GLDA-Na4 Chemical Properties
Density: 1.466[at 20℃]
Vapor pressure: 80Pa at 20℃
Storage temp.: Refrigerator
Solubility: Water
Form: Colourless Solution
Color: Light orange to Yellow to Green
Water Solubility: 650g/L at 21℃
Stability: Hygroscopic
InChI: InChI=1/C9H13NO8.Na.H/c11-6(12)2-1-5(9(17)18)10(3-7(13)14)4-8(15)16;;/h5H,1-4H2,(H,11,12)(H,13,14)(H,15,16)(H,17,18);;/t5-;;/s3
InChIKey: VWDYINKBFDHFPJ-WHWWGIJDNA-N
CAS DataBase Reference: 51981-21-6
EPA Substance Registry System: GLDA-Na4 (1:4) (51981-21-6)

Uses    
GLDA-Na4 is a cationic surfactant that has been used in the production of personal care products and industrial cleaners. 
GLDA-Na4 is soluble in water and can be used as a post-treatment to reduce the redox potential of hydrochloric acid.
 

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