Abstract

This article provides a comprehensive identification of Glycol Dimercaptoacetate (CAS No. 123-81-9), a chemical compound with significant applications in various industries. The article delves into the chemical structure, physical properties, synthesis methods, uses, safety considerations, and regulatory aspects of this compound, offering a detailed overview for readers seeking to understand its characteristics and applications.

Introduction to Glycol Dimercaptoacetate (CAS No. 123-81-9)

Glycol Dimercaptoacetate, also known as ethane-1,2-dithiol-1-acetate, is a chemical compound with the CAS number 123-81-9. It is a colorless to pale yellow liquid with a characteristic odor. This compound is widely used in the pharmaceutical, agricultural, and industrial sectors due to its unique properties. The following sections will provide an in-depth analysis of its identification, including its chemical structure, physical properties, synthesis, uses, safety, and regulatory aspects.

Chemical Structure

Glycol Dimercaptoacetate has a molecular formula of C3H6OS2. It consists of a glycol backbone with two thiol groups (-SH) attached to the first carbon atom. The structure of the compound can be represented as follows:

CH2OH-CH(SH)-COOCH3

This structure allows Glycol Dimercaptoacetate to participate in various chemical reactions, making it a versatile compound in industrial applications.

Physical Properties

Glycol Dimercaptoacetate is a colorless to pale yellow liquid with a boiling point of approximately 234°C. It has a melting point of around 15°C and a density of about 1.27 g/cm³ at 20°C. The compound is soluble in water, alcohol, and ether, which makes it easy to handle and process in various applications.

The odor of Glycol Dimercaptoacetate is described as resembling that of garlic or mustard. It is important to handle this compound with care due to its strong odor and potential health risks.

Synthesis Methods

Glycol Dimercaptoacetate can be synthesized through various methods, including the reaction of ethylene glycol with thioglycolic acid. This reaction produces the desired compound in high yields. Another method involves the reaction of ethyl mercaptan with chloroacetate, followed by hydrolysis to remove the chloride ion.

The synthesis of Glycol Dimercaptoacetate requires careful control of reaction conditions to ensure the desired product is obtained. The process involves several steps, including the preparation of starting materials, the reaction itself, and purification of the final product.

Uses

Glycol Dimercaptoacetate finds applications in various industries due to its unique properties. Some of the primary uses include:

1. **Pharmaceutical Industry**: It is used as a stabilizer in pharmaceutical formulations, particularly in the preparation of vaccines and antibiotics.
2. **Agricultural Industry**: It serves as a fungicide and herbicide, protecting crops from diseases and weeds.
3. **Industrial Applications**: It is used as a corrosion inhibitor in water treatment systems and as a catalyst in organic synthesis.

The versatility of Glycol Dimercaptoacetate makes it a valuable compound in multiple sectors.

Safety Considerations

Glycol Dimercaptoacetate is considered a hazardous substance due to its potential health risks. It can cause irritation to the skin, eyes, and respiratory system. Ingestion of the compound can lead to severe toxicity, including liver and kidney damage.

Proper handling, storage, and disposal of Glycol Dimercaptoacetate are crucial to minimize the risk of exposure. Workers handling this compound should wear appropriate personal protective equipment, such as gloves, goggles, and respirators.

Regulatory Aspects

Glycol Dimercaptoacetate is subject to regulations in various countries, including the United States, the European Union, and Japan. These regulations govern the production, use, and disposal of the compound to ensure the safety of workers and the environment.

The Environmental Protection Agency (EPA) in the United States has established guidelines for the handling and disposal of Glycol Dimercaptoacetate. Similarly, the European Chemicals Agency (ECHA) has classified the compound as a substance of very high concern (SVHC) and has imposed restrictions on its use.

Conclusion

Glycol Dimercaptoacetate (CAS No. 123-81-9) is a versatile chemical compound with significant applications in the pharmaceutical, agricultural, and industrial sectors. Its identification involves a detailed understanding of its chemical structure, physical properties, synthesis methods, uses, safety considerations, and regulatory aspects. By comprehensively analyzing these factors, this article provides a comprehensive overview of Glycol Dimercaptoacetate, aiding readers in understanding its characteristics and applications.

Keywords: Glycol Dimercaptoacetate, CAS No. 123-81-9, chemical structure, physical properties, synthesis, uses, safety, regulatory aspects.