What is Oxalic Acid?

Oxalic Acid (C₂H₂O₄) is the simplest dicarboxylic acid and one of the strongest organic acids. As a leading high-purity Oxalic Acid supplier, Sinopeakchem ensures that this versatile chemical meets the stringent requirements of global industrial buyers. It occurs naturally in many plants and is supplied industrially for numerous applications.

Key Industrial Applications

1. Metal Cleaning and Rust Removal

Oxalic acid is highly effective at dissolving iron oxide (rust) and is widely used for:

• Cleaning metal surfaces before coating
• Removing rust stains from concrete and stone
• Brightening aluminum and stainless steel

2. Marble and Stone Polishing

In the stone industry, oxalic acid is used to:

• Polish marble and granite surfaces
• Remove stains from natural stone
• Restore shine to weathered stone

3. Textile and Leather Industry

Applications include:

• Bleaching cotton and linen fabrics
• Removing iron stains from textiles
• Leather processing and tanning

4. Rare Earth Element Extraction

Oxalic acid plays a crucial role in:

• Precipitating rare earth oxalates from solution
• Purifying rare earth concentrates
• Producing high-purity rare earth oxides

5. Pharmaceutical Industry

Used as an intermediate in:

• Antibiotic synthesis
• Vitamin C supply
• Various pharmaceutical compounds

Safety Guidelines

Handling Precautions

• Wear appropriate PPE (gloves, goggles, respirator)
• Work in well-ventilated areas
• Avoid contact with skin and eyes
• Do not ingest

Storage Requirements

• Store in cool, dry, well-ventilated area
• Keep away from heat sources and incompatible materials
• Use tightly sealed containers
• Keep away from strong oxidizers and bases

Conclusion

As a trusted Oxalic Acid supplier from China, Sinopeakchem supplies high-purity oxalic acid (≥99.6%) with complete safety documentation and global logistics support. Whether you need bulk quantities for rare earth extraction or specialized industrial cleaning, contact us for pricing and availability.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💡 Innovate with SinoPeakChem: Your Partner for Sustainable Oxalic Acid Solutions!

SinoPeakChem is at the forefront of providing high-quality chemical solutions, including Oxalic Acid, produced with an emphasis on sustainability and efficiency. Partner with us for your advanced chemical needs.

Discover Our Sustainable Production Practices → Contact Our Innovation Team →

📧 Email: [email protected]

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

References

[1] "Oxalic Acid: Properties, Production, and Industrial Uses." Chemical Reviews, 2024. [2] "Rare Earth Element Extraction and Purification Using Oxalic Acid." Journal of Rare Earths, 2025. [3] "Technical Guidelines for Metal Cleaning and Rust Removal with Oxalic Acid." SinoPeakChem Technical Series, 2026. [4] "Safety Data Sheet (SDS) for Oxalic Acid." China Ministry of Emergency Management, 2024.