Abstract:
The CAS Registry Number 287-92-3 is a unique identifier assigned to cyclopentane, a cyclic hydrocarbon with the molecular formula C₅H₁₀. This article explores the significance of CAS Registry Numbers, the structure and properties of cyclopentane, and the process by which CAS numbers are assigned. Additionally, it highlights the practical applications of cyclopentane in various industries, such as refrigeration and organic synthesis. Understanding CAS numbers is crucial for accurate chemical identification and communication in scientific research and industrial applications.
Keywords:
– CAS Registry Number
– Cyclopentane
– Chemical Identification
– Hydrocarbons
– Organic Chemistry
– Refrigerants
– Foaming Agents
Article:
#Introduction
In the world of chemistry, precise identification of chemical substances is paramount. The CAS Registry Number, a unique numerical identifier assigned by the Chemical Abstracts Service (CAS), serves this purpose. One such number, 287-92-3, is assigned to cyclopentane, a simple yet significant cyclic hydrocarbon. This article delves into the importance of CAS Registry Numbers, the characteristics of cyclopentane, and the process behind the assignment of these numbers.
#The Role of CAS Registry Numbers
CAS Registry Numbers are essential for the unambiguous identification of chemical substances. With millions of known chemicals, each with potentially multiple names and synonyms, CAS numbers provide a standardized way to reference substances. This is particularly important in scientific research, regulatory compliance, and industrial applications.
#Cyclopentane: Structure and Properties
Cyclopentane is a five-membered ring hydrocarbon with the molecular formula C₅H₁₀. It is a saturated hydrocarbon, meaning it contains only single bonds between carbon atoms. The structure of cyclopentane is characterized by its ring shape, which imparts unique physical and chemical properties. For instance, cyclopentane has a boiling point of 49.2°C and is relatively volatile, making it useful in various applications.
#Assignment of CAS Registry Number 287-92-3
The CAS Registry Number 287-92-3 is assigned to cyclopentane through a systematic process. The number is divided into three parts:
1. First Part (287): Represents the sequential order in which the substance was registered in the CAS database.
2. Second Part (92): Serves as an internal checksum to help verify the number’s validity.
3. Third Part (3): A single digit that acts as a check digit, ensuring the overall accuracy of the CAS number.
This structured approach ensures that each chemical substance has a unique and verifiable identifier.
#Applications of Cyclopentane
Cyclopentane is utilized in several industrial applications due to its favorable properties:
– Refrigerants: Cyclopentane is used as a blowing agent in the production of polyurethane foams, which are widely used in refrigeration and insulation.
– Foaming Agents: Its volatility makes it an effective foaming agent in the manufacture of various foam products.
– Organic Synthesis: Cyclopentane serves as an intermediate in the synthesis of more complex organic compounds.
#Conclusion
The CAS Registry Number 287-92-3 uniquely identifies cyclopentane, a cyclic hydrocarbon with significant industrial applications. Understanding the role of CAS numbers and the properties of cyclopentane is essential for accurate chemical identification and effective communication in scientific and industrial contexts. As chemistry continues to advance, the importance of standardized identifiers like CAS numbers will only grow, ensuring clarity and precision in the global chemical community.
By exploring the significance of CAS Registry Number 287-92-3 and the properties of cyclopentane, we gain a deeper appreciation for the intricate systems that underpin modern chemistry.