oxalic acid(CAS: 144-62-7)

Oxalic acid, with the chemical formula C2H2O4, is a naturally occurring dicarboxylic acid. It is a white, crystalline solid that is soluble in water and has a sharp, sour odor. Oxalic acid is known for its strong acidic properties and ability to form insoluble salts with many cations. It is commonly found in plants and is used in various industrial and chemical applications due to its reactivity and chelating abilities.

Oxalic acid has diverse applications, including as a cleaning agent, a reducing agent in chemical synthesis, and a component in some pharmaceuticals. It is used in the textile industry for dyeing and in metal processing for removing rust. In food, it is present in small amounts in certain fruits and vegetables. Researchers also use it in analytical chemistry for its ability to complex metal ions and in the preparation of other compounds.

Oxalic acid is toxic if ingested or inhaled and can cause severe health effects. It should be handled with care, using appropriate personal protective equipment. Safety data sheets recommend avoiding prolonged exposure and ensuring proper ventilation. Oxalic acid is classified as a hazardous substance, and its use should comply with safety regulations to minimize risks.

Oxalic acid should be stored in a cool, dry, and well-ventilated place away from light. It is typically kept in airtight containers to prevent moisture absorption. Due to its hygroscopic nature, it should be protected from humidity. Storage conditions should maintain a temperature below 25°C and avoid exposure to incompatible materials to ensure stability and safety.