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[Chemical Knowledge]：Properties and Uses of Oxalic Acid

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Oxalic acid in the chemical production of raw materials in the field of the nature and use of

1. Introduction

Oxalic acid as an important organic acid, widely exists in nature, with a variety of unique chemical properties. In the field of chemical production raw materials, oxalic acid plays an important role and is widely used in various industries. This article will detail the nature and use of oxalic acid.

2. the nature of oxalic acid

1. physical properties: oxalic acid is colorless crystals, with a strong pungent odor. It is soluble in organic solvents such as water, ethanol and ether, but insoluble in non-polar solvents such as benzene, chloroform and petroleum ether. The melting point of oxalic acid is low, easy to sublimate.
2. Chemical properties: Oxalic acid is acidic and can react with alkali to generate oxalate and water. In addition, oxalic acid is also reductive and can be oxidized to carbon dioxide and water. Oxalic acid can also form stable complexes with metal ions, which is of great significance in chemical production.

3. the use of oxalic acid

1. Chemical production: In chemical production, oxalic acid is widely used as a reducing agent and bleaching agent. For example, oxalic acid can be used to produce ferrous oxalate, cobalt oxalate and other chemical raw materials. In addition, oxalic acid can also be used to prepare products such as plastics, fibers and rubber.
2. Pharmaceutical manufacturing: Oxalic acid plays an important role in the field of pharmaceutical manufacturing. It can be used as a drug intermediate for the production of antibacterial drugs, antipyretic analgesics and other drugs. In addition, oxalic acid can also be used to prepare nutritional supplements such as vitamin C.
3. Food industry: In the food industry, oxalic acid is mainly used as a preservative, antioxidant and acidity regulator. It can be used to extend the shelf life of food and improve the taste and quality of food.
4. Analytical Chemistry: In analytical chemistry, oxalic acid is commonly used as a titrant and masking agent. It can be used to determine the content of metal ions, as well as masking interference ions, improve the accuracy of analysis.

4. conclusion

In short, oxalic acid has a wide range of uses in the field of chemical production raw materials, plays an important role. Understanding and mastering the nature and use of oxalic acid will help to improve the efficiency and quality of chemical production and promote the sustainable development of the chemical industry.

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