Oxalic Acid comes in a powder form and can be mixed with water to perform several purposes. In the washing industry we typically use it for:
Wood Brightening, Rust Removal, Neutralizing after using Sodium Hypochlorite & also for Concrete Brightening.
We sell this product in a sealed plastic container with all the mix ratios on the label. Save a 10% when you order a case at a time (2 Pack) by simply adding multiples of 2 into your cart.