Oxalic acid

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• NIOSH: Oxalic Acid — calcium chelation; calcium oxalate nephrolithiasis; hypocalcemia; rhubarb leaf toxicity; industrial cleaner hazard; primary hyperoxaluria; ethylene glycol metabolism (2019) REGULATORY · 2019
• CDC/ATSDR: Oxalic Acid Toxicological Profile — plant sources; dietary intake; renal tubular deposition; acute poisoning treatment; industrial uses; calcium oxalate crystals; pediatric rhubarb exposure (2020) REGULATORY · 2020
• § 1910.1000 Air contaminants. REGULATORY
• CDC - NIOSH Pocket Guide to Chemical Hazards - Oxalic acid REGULATORY
• Subpart D—Occupational Health and Environmental Controls REGULATORY
• identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
• L_2006038EN.01003601.xml REGULATORY
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• EPA CompTox CTX API: predicted properties for DTXSID0025816 (Oxalic acid) REFERENCE
• ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) REGULATORY

Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.