This Oxalic Acid is applied or rubbed onto marble sculptures for sealing its surface and producing a shiny surface finish. Also, the offered acid is used to remove magnesium and iron from quartz crystals. As well as, this acid is perfect to be used as a bleach for removing black stains bind onto the wood during penetration of water or stone. This acid is processed using accurate composition of chemical compounds and advanced methodologies. Available in net 50kgs weight, the provided Oxalic Acid is free from impurities, safe to use at a moderate level and highly effective.