Oxalic Acid
Chemical Name: Ethanedioic Acid
Abbreviation: OA
CAS No.: 144-62-7
HS Code: 29171100
1. Product Overview
Oxalic acid is a widely used organic acid with strong acidity and reducing properties. It appears as white crystal or crystalline powder, odorless, soluble in water, ethanol, It is widely used in textile, marble polishing, metal cleaning, leather processing, pharmaceuticals, and other industrial fields. We supply both Oxalic Acid Dihydrate and Oxalic Acid Anhydrous with high purity and stable quality for global markets.
2. Product Specifications
Oxalic Acid Dihydrate
| Item |
Standard |
| Appearance |
White crystal or crystalline powder |
| Purity |
≥99.6% |
| Loss on Drying |
≤1.0% |
| Insoluble Matter |
≤0.10% |
| Sulphate (SO₄²⁻) |
≤0.08% |
| Chloride (Cl⁻) |
≤0.01% |
| Iron (Fe) |
≤0.001% |
Oxalic Acid Anhydrous
| Item |
Standard |
| Appearance |
White crystal or crystalline powder |
| Purity |
≥99.8% |
| Loss on Drying |
≤0.05% |
| Insoluble Matter |
≤0.05% |
| Sulphate (SO₄²⁻) |
≤0.05% |
| Chloride (Cl⁻) |
≤0.005% |
| Iron (Fe) |
≤0.0005% |
3. Main Applications
1) Textile & Leather Industry
- Used as a bleaching agent for cotton, linen, and other natural fibers.
- Used for leather tanning and dyeing auxiliary.
- Helps remove impurities and improve color brightness.
2) Marble & Stone Industry
- Ideal for marble cleaning, rust removal, and polishing.
- Effectively removes yellowing, water stains, and mineral deposits on stone surfaces.
- Widely used in stone maintenance and restoration.
3) Metal Treatment & Surface Cleaning
- Used for metal derusting, decontamination, and surface activation.
- Suitable for steel, aluminum, and other metal surface treatment.
- Removes oxide layers and improves coating adhesion.
4) Dyeing & Printing Industry
- Used as a reducing agent and developer in dyeing processes.
- Helps improve dye uptake and color uniformity.
5) Pharmaceutical & Chemical Industry
- Used as an intermediate for organic synthesis.
- Used in manufacturing various chemicals, medicines, and reagents.
6) Other Applications
- Used in wastewater treatment as a reducing agent.
- Used in rare earth mineral processing and catalyst preparation.
- Used in daily chemical and cleaning products.
4. Packaging
- 25kg PP woven bag with PE liner
- 25kg fiber drum
- 1000kg jumbo bag
- Custom packaging available upon request
5. Storage & Handling
- Store in a cool, dry, and ventilated area.
- Keep away from moisture, heat, and incompatible substances.
- Avoid contact with strong alkalis, oxidizing agents, and food.
- Use proper personal protection during handling.
6. Our Advantages
- High purity, stable quality, and consistent performance
- Competitive factory price with large stock
- Professional export experience and fast delivery
- Full quality inspection before shipment
- Flexible payment terms and reliable after-sales service
