Citric acid: an eco-friendly and safe rust removal agent
Citric acid is emerging as a sustainable and effective alternative to traditional mineral acids for rust removal in both industrial and household applications. Unlike commonly used harsh mineral acids such as phosphoric or hydrochloric acid, citric acid offers comparable derusting performance while significantly reducing health and environmental risks. Its fermentation-based production from renewable resources and non-toxic, biodegradable nature make Jungbunzlauer citric acid ideal for eco-friendly formulations.
Moreover, xanthan gum ‘acid stable’ grade (TNAS-CS) can be combined with citric acid to create easy-to-apply, readily biodegradable, and microplastic-free gel formulations that remain physically and chemically stable over time. This combination enables the development of targeted rust removal applications, enhancing user convenience and formulation versatility.
Key values of citric acid in rust removers:
- Effective derusting performance: Comparable to phosphoric acid, especially at 5-10% concentrations, resulting in a shiny, silver finish.
- Non-toxic and safe to handle: No harsh fumes, ideal for household use.
- Eco-friendly and biodegradable: Safe for disposal and less harmful to the environment.
- Formulation flexibility: Compatible with xanthan gum ‘acid stable’ grade for stable, easy-to-apply gel-based applications.