Dimethyl Oxalate (CAS 553-90-2)： Everything You Need to Know About This Chemical

Abstract

This article provides a comprehensive overview of Dimethyl Oxalate (CAS 553-90-2), a chemical compound widely used in various industries. It delves into the chemical properties, synthesis methods, applications, safety considerations, environmental impact, and regulatory aspects of Dimethyl Oxalate. By exploring these aspects, the article aims to offer a comprehensive understanding of this chemical and its significance in different sectors.

Introduction to Dimethyl Oxalate (CAS 553-90-2)

Dimethyl Oxalate, also known as ethanedioic acid dimethyl ester, is a colorless liquid with a sweet, fruity odor. It is classified as an organic compound and belongs to the oxalate ester family. Dimethyl Oxalate is widely used in the production of plastics, resins, and other chemicals. In this article, we will explore the various aspects of Dimethyl Oxalate, including its chemical properties, synthesis methods, applications, safety considerations, environmental impact, and regulatory aspects.

Chemical Properties of Dimethyl Oxalate

Dimethyl Oxalate has a molecular formula of C4H4O4 and a molecular weight of 116.07 g/mol. It is a polar compound with a boiling point of 169-170°C and a melting point of -60°C. The compound is soluble in organic solvents such as acetone, benzene, and chloroform but is insoluble in water. Dimethyl Oxalate is also highly reactive and can undergo various chemical reactions, including esterification, hydrolysis, and polymerization.

Synthesis of Dimethyl Oxalate

Dimethyl Oxalate can be synthesized through several methods, including the esterification of oxalic acid with methanol and the reaction of ethylene oxide with carbon monoxide. The most common industrial method involves the reaction of oxalic acid with methanol in the presence of a catalyst, such as sulfuric acid or hydrochloric acid. This process is typically carried out at elevated temperatures and pressures to ensure high yields of Dimethyl Oxalate.

Applications of Dimethyl Oxalate

Dimethyl Oxalate finds extensive use in various industries due to its versatile properties. It is primarily used in the production of polyesters, polyurethanes, and other plastics. These plastics are used in the manufacturing of automotive parts, construction materials, and consumer goods. Additionally, Dimethyl Oxalate is employed in the synthesis of resins, which are used in coatings, adhesives, and sealants. It is also used as a solvent in the pharmaceutical industry for the extraction of certain compounds.

Safety Considerations for Dimethyl Oxalate

Dimethyl Oxalate is considered a hazardous chemical due to its potential health and environmental risks. Exposure to the compound can cause irritation to the eyes, skin, and respiratory system. Ingestion or inhalation of Dimethyl Oxalate can lead to more severe health effects, including liver and kidney damage. Therefore, it is crucial to handle Dimethyl Oxalate with appropriate safety measures, such as wearing protective clothing, gloves, and respiratory protection. Proper ventilation and adherence to occupational health and safety regulations are also essential.

Environmental Impact of Dimethyl Oxalate

Dimethyl Oxalate is classified as a persistent, bioaccumulative, and toxic (PBT) chemical. It can persist in the environment for an extended period, bioaccumulate in organisms, and cause adverse effects on ecosystems. The compound can enter water bodies through industrial discharges and agricultural runoff, posing a risk to aquatic life. Additionally, Dimethyl Oxalate can contribute to air pollution and contribute to the formation of ground-level ozone. Proper waste management and environmental regulations are necessary to minimize the environmental impact of Dimethyl Oxalate.

Regulatory Aspects of Dimethyl Oxalate

Dimethyl Oxalate is subject to various regulations and standards to ensure its safe use and minimize environmental risks. The European Union has implemented the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) regulation, which requires the registration and evaluation of all chemicals produced or imported in the EU. In the United States, Dimethyl Oxalate is regulated under the Toxic Substances Control Act (TSCA) and the Occupational Safety and Health Administration (OSHA) standards. Compliance with these regulations is essential for the safe handling and use of Dimethyl Oxalate.

Conclusion

Dimethyl Oxalate (CAS 553-90-2) is a versatile chemical compound with significant applications in various industries. This article has provided a comprehensive overview of its chemical properties, synthesis methods, applications, safety considerations, environmental impact, and regulatory aspects. Understanding these aspects is crucial for the safe and responsible use of Dimethyl Oxalate in industrial processes and ensuring its minimal impact on human health and the environment.

Keywords: Dimethyl Oxalate, CAS 553-90-2, chemical properties, synthesis, applications, safety, environmental impact, regulatory aspects.