An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Inert Reassessment Document for Oxalic Acid - CAS No. 144-62-7

Oxalic acid is used as an analytical regent. It is also used in textile finishing; in metal, wood or equipment cleaning; in bleaching straw (hats) and leather; in removing  paint, varnish, rust or ink stains; in dye manufacturing; in chemical synthesis; and in the paper, ceramics, photographic and rubber industries.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.