Oxalic Acid ACS Grade

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.

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