1 Gallon 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal
Chemical formula: h3po4 density: 98G/ml phosphoric acid is often used to acidify foods and beverages such as carious colas. It provides a tangy and sour taste. We use phosphoric acid to treat the by-product of diesel. After methanol Extraction, using phosphoric acid allows a clean separation of the Glycerin and soaps. If done correctly, it can yield 90 percent Pure Glycerin. May also be used as a rust remover/inhibitor. Dilute to a 25-50 percent concentration with water and soak rusted metal parts. Over time, rust will remove and the phosphoric acid reacts with the metal to create a rust inhibiting barrier on the metal. BE sure to use gloves! great for cleaning residue from metals.