•Cleaning Purposes:Oxalic acid is effective for removing rust and stains from metal surfaces. You can make a solution by dissolving oxalic powder in warm water and then apply it to the affected areas. Scrub gently and rinse thoroughly.It can also be used to clean and brighten wooden decks or furniture that have been discolored by mildew or weathering. Again, dissolve oxalic powder in water and apply it to the wood surface, then scrub and rinse well.
•Removing Stains:Oxalic acid can remove stains from fabrics, carpets, and upholstery caused by rust, ink, or food. However, it's essential to test it on a small, inconspicuous area first to ensure it doesn't damage the material. Mix oxalic powder with water to create a paste and apply it to the stained area. Allow it to sit for a short time before rinsing thoroughly.
•Wood Bleaching:In woodworking, oxalic acid is sometimes used as a wood bleach to lighten dark stains or discolorations on hardwoods like oak and mahogany. Mix oxalic powder with water to create a solution and apply it to the wood surface. Allow it to dry completely before sanding and refinishing the wood.
•Removing Mineral Deposits:Oxalic acid can dissolve mineral deposits like lime scale and calcium carbonate found in toilets, sinks, and other plumbing fixtures. Use caution when using it in these areas, as it can be corrosive to certain materials. Always wear gloves and eye protection, and ensure adequate ventilation when working with oxalic acid.