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Commercial Fulfillment Snapshot
Buy Oxalic Acid ACS Grade with faster decisions and fewer back-and-forth emails.
Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.
Who Buys This
- Analytical chemistry laboratories
- Research & development facilities
- Quality control testing labs
- Pharmaceutical testing companies
- Academic research institutions
Purity / Grade Guide
- ACS reagent grade quality
- Analytical & research applications
- Laboratory grade purity standards
- COA included with shipment
Pack Sizes
- 2 lb: bench & testing
- 5 lb: shop & formulating
- 55 lb: bulk, best $/lb
SDS / COA / TDS
- UN 3261 Class 8 packaging
- SDS safety data sheet
- COA certificate of analysis
- ACS grade documentation
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.
Product Overview
Oxalic Acid ACS Grade (C₂H₂O₄), also known as Ethanedioic Acid, is a high-purity, colorless, crystalline organic compound. This product is manufactured to meet or exceed American Chemical Society (ACS) specifications, ensuring an assay of 99.5% or higher. With strict limits on impurities such as iron, heavy metals, and residue after evaporation, it is the standard choice for critical laboratory analysis and sensitive industrial processes.
Beyond the laboratory, Oxalic Acid is a potent reducing agent and chelator. It is extensively used in industrial metal finishing for rust and scale removal, as it effectively binds to iron oxide. In the wood processing industry, it serves as a bleaching agent to remove stains and lighten timber. Its high solubility in water and alcohol allows for easy integration into various chemical formulations and cleaning protocols.
Key Properties
- Appearance: White crystalline powder
- Grade: ACS Reagent Grade (≥99.5% Purity)
- Chemical Formula: C₂H₂O₄
- CAS Number: 144-62-7
- Molecular Weight: 90.03 g/mol
- Solubility: Soluble in water and alcohol
- Iron Content: ≤0.2 ppm (Typical 0.05 ppm)
- Residue After Evaporation: ≤0.001%
Common Applications
- Metal Surface Treatment: Highly effective at removing rust, mill scale, and iron stains from metal surfaces prior to finishing.
- Wood Processing: Acts as a bleaching agent to lighten wood and remove dark water stains or tannin discoloration.
- Analytical Chemistry: Used as a primary standard in titrations and for the precipitation of rare earth metals.
- Industrial Cleaning: Utilized in radiator cleaning compounds and laundry souring agents to neutralize alkalinity and remove iron deposits.
- Textile Industry: Functions as a mordant in dyeing processes and for removing ink or rust stains from fabrics.
Safety & Handling
Oxalic Acid is a corrosive solid and must be handled with appropriate safety precautions. Users should wear protective gear, including chemical-resistant gloves, eye protection, and a respirator to avoid inhalation of dust. Store in a cool, dry, well-ventilated area away from strong oxidizers and alkalis. This product is shipped as a hazardous material (UN 3261). Refer to the Safety Data Sheet (SDS) for detailed emergency and disposal information.
Related Products
| Property | Value |
|---|---|
| Molecular Weight | 90 g/mol |
| Formula | C2H2O4 |
| Assay | 99.6%% |
| Grade | ACS |
| Form | Solid |
| Solubility | Soluble in water, alcohol, and ether |
| Appearance | Colorless, crystalline solid |
| Melting Point | 101 °C |
| Boiling Point | 101 °C |
| Specific Gravity | 1.653 |
| Industry | Industrial, Healthcare, Environmental |
Frequently Asked Questions About Oxalic Acid ACS Grade
What is Oxalic Acid ACS Grade and what is its chemical formula?
Oxalic Acid ACS Grade is a chemical compound with the molecular formula C2H2O4, registered under CAS Number 144-62-7 by the Chemical Abstracts Service (PubChem), with a molecular weight of 90 g/mol. Alliance Chemical supplies Oxalic Acid ACS Grade in ACS grade for laboratory, industrial, and commercial applications.
What are the physical properties of Oxalic Acid ACS Grade?
According to the NIOSH Pocket Guide to Chemical Hazards, Oxalic Acid ACS Grade is supplied as a colorless, crystalline solid. It has a melting point of 101°C, a boiling point of 101°C. The specific gravity is 1.653 relative to water. Solubility: Soluble in water, alcohol, and ether.
What grade and purity of Oxalic Acid ACS Grade does Alliance Chemical offer?
Alliance Chemical offers Oxalic Acid ACS Grade in ACS grade with a purity assay of 99.6%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Oxalic Acid ACS Grade?
Oxalic Acid ACS Grade serves a wide range of sectors, including Industrial, Healthcare, and Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Oxalic Acid ACS Grade?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Oxalic Acid ACS Grade?
Store perOSHA 29 CFR 1910.1450: Dedicated corrosives cabinet with secondary containment (110% volume per EPA 40 CFR 264.175). Temperature range:15-25°C. Segregate from:bases, reactive metals, organic materials. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Oxalic Acid ACS Grade?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 50 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Carefully neutralize with sodium bicarbonate (5-10% solution), monitor exothermic reaction. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Oxalic Acid ACS Grade?
DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class6.1 (Toxic), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Oxalic Acid ACS Grade waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Oxalic Acid ACS Grade?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Oxalic Acid ACS Grade. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.
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