سدیم اگزالات

Sodium Oxalate is a high-purity, crystalline inorganic compound used as a primary standard and reducing agent in analytical and research laboratories, providing reliable and reproducible results for volumetric analysis and redox titrations.

🏭⚗️ Production
Sodium Oxalate is produced by neutralizing purified oxalic acid with sodium hydroxide in a 1:2 molar ratio under controlled conditions. The resulting sodium oxalate solution is concentrated, crystallized, and dried at moderate temperature to obtain highly pure, white crystals. The product is packaged in airtight, moisture-protected containers to preserve chemical stability and prevent hydration or contamination.

🔬 Properties
Sodium Oxalate (Na₂C₂O₄) is a white, odorless, crystalline solid with a molar mass of 134.00 g/mol and a density of approximately 2.34 g/cm³. It is sparingly soluble in water (around 3.7 g per 100 mL at 20 °C) and insoluble in alcohol. It decomposes upon heating above 250 °C, releasing carbon monoxide and carbon dioxide. Sodium Oxalate is a weakly basic salt, stable under normal laboratory conditions but reactive with strong oxidizing agents.

🧪 Applications
Sodium Oxalate is primarily used as a primary standard in volumetric analysis, especially for the standardization of potassium permanganate solutions, due to its high purity, stability, and predictable stoichiometry. It also serves as a reducing agent in analytical chemistry, as well as a reagent in textile processing, leather tanning, blueprinting, and various metal ion analyses. In pharmaceutical and academic laboratories, it provides a consistent benchmark for oxidation-reduction titrations and other analytical calibration procedures.

⚠️ Safety
Sodium Oxalate is harmful if swallowed and may cause irritation to the skin, eyes, and respiratory tract. It can form insoluble calcium oxalate in the body, which is toxic in high doses. Proper personal protective equipment, including gloves, goggles, and laboratory coats, must be worn when handling this compound. Work should be conducted in a well-ventilated area, and the material should be stored in tightly sealed containers away from moisture, acids, and oxidizing agents. Disposal should follow institutional and local hazardous waste regulations.