Number

045-EN

Section

General Section

Use

Abstract

Glutamic acid diacetic acid (GLDA) is a new generation of chelating agent that can be used as alternative to EDTA (ethylenediaminetetraacetate) and phosphonates, especially in cleaning applications.

Substituted substances

Alternative Substances

Reliability of information

Evidence of assessment: there is evidence of an official (positive) assessment of the substitution
Internet information: data are from an internet document and only a basic and partial evaluation could be performed

Reason substitution

other toxic effects
ecotoxicity
physical hazards

Hazard Assessment

The alternative is not included in the database of hazardous substances according to SUBSPORT screening criteria (SDSC). » Check the Substance Database according to SUBSPORT Screening Criteria (SDSC)

Description of Substitution

Introduction Chelates are chemical agents that interact or complex with metal ions as well as hard water ions such as Ca2+, Mg2+. Some common chelating agents used in industrial cleaning compounds include EDTA (ethylenediaminetetraacetate) or phosphates. Unfortunately, EDTA is not readily biodegradable and phosphates can cause pollution via eutrophication and are therefore not environmentally friendly. L-GLDA (glutamic acid diacetic acid) is an easily biodegradable chelating agent (>60 percent degrades within 28 days), that fulfills the performance of traditional chelating agents such as EDTA. It is made of the naturally occurring L-glutamic acid coming from sugar, molasses, corn or rice. It has very good ecological and toxicological properties. According to the Swedish Society for Nature Conservation it is based on 86 percent natural and renewable materials. It has high water solubility over a wide pH range and retains its high chelating value at elevated temperatures more than other chelating agents. In cleaning formulations and under harsh washing conditions, GLDA complexes hard water ions very well and shows good stain removing properties with tea, starch, meat and burnt milk stains. GLDA is produced by Akzo Nobel and denoted as Dissolvine® GL. Description of procedure or technology (including pre-/post-processing) Way of application: e.g. spraying, dipping, open/closed system etc. Risk management measures (technical, organizational and personal) Risk reduction by alternative: Human health: e.g. more/less safety measures e.g. technical/operational/personal protection measures Risk reduction by alternative: Environment: e.g. waste reduced/increased

Case/substitution evaluation

Kommentar GLDA ist eine gute Alternative zu EDTA für alle industriellen Reinigungsanwendungen und kann auch in stark alkalischen Reinigungsmitteln für harte Oberflächen eingesetzt werden, die in der Lebensmittelherstellung, der Küchenreinigung und in Spülwasserprodukten angewendet werden. Es kann EDTA ersetzen, ohne dass erhebliche Änderungen in der Formulierung des Reinigers vorgenommen werden müssen. GLDA Chelate wurden von der Umweltbehörde der Vereinigten Staaten (United States Environmental Protection Agency (EPA) für den Gebrauch in Pestizid-Formulierungen zugelassen, die nicht mit Lebensmitteln in Berührung kommen. Advantage or Disadvantage of alternative

Aspect	Advantage/disadvantage to conventional process
Technical requirements
Implementation	Verglichen mit EDTA • Bessere ökologische und toxikologische Eigenschaften • Bessere Förderung der bioziden Aktivität • Bessere Leistung bei der Reinigung harter Oberflächen Verglichen mit Phosphaten und Phosphonaten • Trägt nicht zur Eutrophierung bei • Stärkere chelatisierende Wirkung • Bessere Fleckenentfernung
Operational expenses
etc.

State of implementation

Full capacity

Availability ofAlternative

On the market

Producer/Provider

www.akzonobel.com

https://www.nouryon.com/document-search/?q=Dissolvine%20GL

Type of information supplier

Producer / distributor

Further information

You can find the Technical Brochure of Dissolvine GL and the Safety Data Sheet here.

Date, reviewed

February 27, 2020