| Index | Specifications: |
| Oxalic Acid Content: | 99.6% Min |
| Sulphate (SO4-2) | 0.1% Max |
| Heavy Metals (Pb2+) | 0.0005% Max |
| Ferrous (Fe3+) | 0.0005% Max |
| Chloride (CL-) | 0.002% Max |
| Ignition Residue (850ºC) | 0.03% Max |
Oxalic Acid 99%
CAS Number:
144-62-7 (anhydrous)
6153-56-6 (dihydrate)
Other Trading Names:
- Wood Bleach
- Oxiric acid
Type of Packaging :
- 25kg woven bag
- 100 kg woven jumbo bags
HS Code:
291711
Oxalic Acid 99% Solution – Powerful Chelating & Cleaning Agent for Industrial Applications
We supply high-purity Oxalic Acid with a 99% assay. This strong organic acid is a highly effective chelating agent, reducing agent, and cleaning chemical. Consequently, industries actively utilize it for metal cleaning, textile bleaching, and as a precursor in chemical synthesis. Moreover, its ability to bind metal ions makes it indispensable for specialized purification and treatment processes.
Core Applications for Oxalic Acid in Industry & Processing
This versatile acid serves critical roles in surface treatment, manufacturing, and purification. Its functions are specialized yet impactful across several sectors.
First, the metal treatment and cleaning industry relies on oxalic acid 99% as a powerful agent for rust removal and surface brightening. It effectively cleans and passivates ferrous and non-ferrous metals like iron, aluminum, and brass. Therefore, manufacturers in automotive, construction, and metal finishing depend on it for restoring and preparing metal surfaces.
Second, the textile and wood pulp industry utilizes it as a bleaching and cleaning agent. It removes iron stains from fabrics and brightens wood pulp in paper production. Furthermore, it is used in rare earth element extraction, as a grinding agent in marble processing, and for cleaning brewery equipment.
Third, the chemical and pharmaceutical sectors employ it as a key intermediate and precipitating agent. It is a precursor for antibiotics, fine chemicals, and certain dyes. Additionally, beekeepers use it as a miticide, and it serves in radiator cleaner formulations.
Critical Specifications for Oxalic Acid 99% Solution
We produce our oxalic acid to stringent standards for purity and low heavy metal content. Thus, you can trust its predictable reactivity and performance in sensitive applications.
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Product: Oxalic Acid Dihydrate
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Assay (as C₂H₂O₄·2H₂O): ≥ 99%
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Appearance: White crystalline powder
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Solubility: Soluble in water and alcohol.
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Storage: Store in a cool, dry, well-ventilated area in tightly sealed, moisture-proof containers. Keep away from alkalis, strong oxidizers, and heat sources.
Your Strategic Oxalic Acid 99% Solution Supply Partner
As your dedicated global partner, we ensure a reliable and high-quality supply of this specialized industrial acid.
Firstly, we guarantee consistent high purity and controlled crystal size through precision crystallization and batch analysis.
Moreover, we offer secure bulk packaging for powdered chemicals. We supply in 25 kg bags, fiber drums, and larger quantities, all designed to prevent moisture absorption and caking.
We also provide highly competitive global pricing for oxalic acid 99% solution, delivering excellent value to metal treatment facilities, textile processors, chemical manufacturers, pharmaceutical suppliers, and international distributors.
Additionally, we manage efficient and compliant international logistics. Every shipment includes complete Safety Data Sheets (SDS), a Certificate of Analysis (COA), and all necessary shipping documentation.
Finally, we deliver expert technical and safety support to help you handle and apply oxalic acid effectively in your rust removal, bleaching, or synthesis processes.

















