Oxalic Acid Dihydrate (CAS 6153-56-6) is a fascinating chemical compound with a simple molecular structure that belies its extensive utility across a multitude of industries. As the simplest dicarboxylic acid, its chemical properties are well-defined and form the basis of its diverse applications. NINGBO INNO PHARMCHEM CO.,LTD. highlights the key chemical characteristics that make Oxalic Acid Dihydrate a valuable industrial material.

Chemically, Oxalic Acid Dihydrate is characterized by its two carboxyl groups, which impart strong acidic properties. It readily dissolves in water, forming acidic solutions. This acidity is fundamental to its role as a cleaning agent, where it can effectively neutralize alkaline deposits and react with metal oxides. Its pKa values (approximately 1.27 and 4.27) indicate it is a stronger acid than acetic acid, contributing to its effectiveness in challenging cleaning tasks and its utility in various chemical reactions.

A significant property of oxalic acid is its reducing ability. It can readily donate electrons in redox reactions, making it useful in applications where reduction is required. For instance, it acts as a reducing agent in photography and in certain chemical syntheses. This reducing power, combined with its acidity, makes it a versatile reagent in organic chemistry.

Furthermore, oxalic acid and its salts, oxalates, are known for their chelating abilities. They can form stable complexes with metal ions, effectively sequestering them. This chelating property is particularly important in rust removal, where oxalic acid forms water-soluble complexes with iron ions, allowing the rust to be easily washed away. In the textile industry, this property also aids in mordant dyeing, ensuring dye molecules bind firmly to fibers by forming complexes with both the dye and the fabric.

The dihydrate form, H2C2O4·2H2O, is the most common commercially available form. It crystallizes as white solid powder and is stable under normal storage conditions. Proper handling and storage are essential, as oxalic acid can be toxic if ingested or if it comes into prolonged contact with skin. NINGBO INNO PHARMCHEM CO.,LTD. emphasizes the importance of consulting safety data sheets (SDS) and adhering to recommended handling procedures to ensure safe use.

The industrial significance of Oxalic Acid Dihydrate stems directly from these chemical properties. Its ability to act as an acid, a reducing agent, and a chelating agent makes it indispensable for tasks like metal cleaning, textile processing, leather tanning, and as a key intermediate in the synthesis of various organic compounds. Companies looking to leverage these properties can find a reliable partner in NINGBO INNO PHARMCHEM CO.,LTD. for their supply of high-quality Oxalic Acid Dihydrate.