Various Acids were used in the past such as Phosphoric acid as used in Calcium Lime Rust Remover (CLR) and Hydrofluoric acid as used in the Australian Product made in Queensland called "Rustiban".
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Hydrogen peroxide is also a bleaching agent that can be used to treat stains.
Love Removal Machine | Indian removal | Indian Removal Act | The Human Stain | The Adventure of the Second Stain | Penis removal | Port-wine stain | naevus flammeus aka "port-wine stain" variety | Mountaintop removal mining | '''Masson's trichrome''' stain of rat airway. Connective tissue | Masson's trichrome stain | Jurisdiction and Removal Act of 1875 | Indian Removal | Hoechst stain | Grocott's methenamine silver stain | Cherokee removal |
Her latest book, Stainless (Co-Written with Trent Hayes) was released in 2010 and serves as a how-to book in understanding Shannon's stain removal techniques.