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Abstract
This paper is mainly about the CAS No. 1165-53-3, which is a compound used in the chemical and engineering industry. This paper will provide an introduction to the CAS No. 1165-53-3, including its chemical name, molecular structure, physical and chemical properties, uses, safety and health considerations, environmental effects, and regulations. Through this research, it will be found that CAS No. 1165-53-3 is a useful compound for the chemical and engineering industry and can be used in many applications. However, it is important to be aware of the potential health and environmental risks associated with the compound and to take the necessary precautions when handling or storing the compound.
1 Introduction
CAS No. 1165-53-3 is a chemical compound used in various industrial applications. It is an organosulfur compound with the chemical name 2-thiophenecarboxaldehyde. It is a colorless, crystalline solid with a melting point of 24°C and a boiling point of 153°C. It is soluble in water, methanol, and ethanol.
2 Chemical properties
CAS No. 1165-53-3 is composed of the elements carbon, hydrogen, sulfur, and oxygen. It has a molecular weight of 140.19 g/mol and a molecular formula of C6H4SCHO. Its structural formula is shown in Figure 1.
Figure 1: Structural formula of CAS No. 1165-53-3
3 Physical properties
CAS No. 1165-53-3 is a colorless, crystalline solid with a melting point of 24°C and a boiling point of 153°C. It has a density of 1.12 g/cm3 and a refractive index of 1.542. It has a flash point of 90°C and a vapor pressure of 0.064 mmHg at 25°C.
4 Uses
CAS No. 1165-53-3 is mainly used in the chemical and engineering industry. It is used as a raw material in the production of various chemicals, such as thiophene, thiophene derivatives, and polythiophenes. It is also used in the production of pharmaceuticals, dyes, and pigments.
5 Safety and health considerations
CAS No. 1165-53-3 is a hazardous chemical and should be handled with care. It may irritate the skin and eyes and should not be ingested or inhaled. It should be stored in a cool, dry place and away from any sources of ignition.
6 Environmental effects
CAS No. 1165-53-3 is not known to be toxic to the environment, but it can be hazardous to aquatic organisms. It can also cause air pollution when released into the atmosphere.
7 Regulations
CAS No. 1165-53-3 is regulated by various government agencies in different countries. In the United States, it is regulated by the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA). The EPA has set a limit of 0.5 parts per million (ppm) for the compound in drinking water. OSHA has set an exposure limit of 0.2 ppm for the compound in workplace air.
Conclusion
CAS No. 1165-53-3 is a compound used in the chemical and engineering industry. It has various physical and chemical properties, uses, and safety and health considerations. It is important to be aware of the potential health and environmental risks associated with the compound and to take the necessary precautions when handling or storing the compound.