Analysis of the Chemical Composition and Structural Characteristics of Oxalic Acid
As an important organic dicarboxylic acid, oxalic acid owes its unique properties and wide range of applications to its chemical composition and molecular structure. Chemically, oxalic acid is the common name for ethanedioic acid, the simplest dicarboxylic acid compound, which plays an important role in both nature and industrial production.
The molecular formula of oxalic acid is H₂C₂O₄, with a molecular weight of 90.03 g/mol. Its systematic IUPAC name is ethanedioic acid. In the Chemical Abstracts Service registry, its CAS number is 144-62-7, which serves as a universal, unique identifier for the substance.
From an elemental composition perspective, an oxalic acid molecule contains 2 carbon atoms, 2 hydrogen atoms, and 4 oxygen atoms. The mass percentages of its constituent elements are: 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen. This elemental ratio contributes to oxalic acid’s strong acidic properties. Notably, oxalic acid most commonly exists as a dihydrate, with the formula H₂C₂O₄·2H₂O, which has a molecular weight of 126.07 g/mol.
Oxalic Acid – Zibo Anhao Chemical Co., Ltd.
Zibo Anhao Chemical Co., Ltd. is a reliable supplier of high-purity oxalic acid (ethanedioic acid, CAS 144-62-7 anhydrous / 6153-56-6 dihydrate), with the molecular formula C₂H₂O₄ (anhydrous) or C₂H₂O₄·2H₂O (dihydrate). As the simplest dicarboxylic acid, our oxalic acid is a white, odorless crystalline solid with exceptional solubility in water and ethanol, featuring strong acidity and excellent metal-chelating and reducing properties.
Our oxalic acid is manufactured via advanced, eco-friendly synthesis routes, adhering to strict ISO and industrial grade standards. With a minimum purity of 99.6%, low impurity content, and stable crystalline structure, it delivers consistent performance across diverse industrial applications. Key uses include: a high-efficiency rust remover and industrial cleaner for boilers, metals, and textiles; a bleaching agent for pulp, straw, and fabrics; a critical intermediate for producing oxalate salts, pharmaceuticals, and agrochemicals; and a chelating agent in water treatment and metal processing.
At Zibo Anhao Chemical, we prioritize quality control and customer-centric service. Our in-house laboratory conducts rigorous testing at every production stage to ensure batch-to-batch consistency. We offer flexible packaging options—25kg woven bags with inner film, 50kg drums, and bulk shipments—to meet varied order scales. Strategically located in Zibo, Shandong, we leverage robust logistics networks to ensure timely delivery and competitive pricing.
Backed by years of expertise in fine chemical production and international trade, Zibo Anhao Chemical is committed to providing premium oxalic acid and tailored technical support to global partners. We aim to build long-term cooperation based on integrity, quality, and mutual benefit.
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