How is Neon Collected?
Neon, a colorless, odorless, and non-flammable gas, is a member of the noble gases group in the periodic table. It is widely used in various applications, including advertising signs, lighting, and scientific research. The process of collecting neon involves several steps to ensure the purity and quality of the gas. This article will explore the methods used to collect neon and the significance of its applications.
The primary method used to collect neon is through the fractional distillation of liquid air. This process takes advantage of the different boiling points of the gases present in air. Here’s a step-by-step overview of how neon is collected:
1. Air Separation: The first step in collecting neon is to separate it from the other gases in the air. This is typically done in an air separation plant, where air is compressed and then cooled to -200 degrees Celsius (-328 degrees Fahrenheit). At this low temperature, the air begins to liquefy.
2. Liquefaction: Once the air is liquefied, it is stored in large containers. The liquefied air is then allowed to warm up slowly, causing the different gases to separate based on their boiling points.
3. Fractional Distillation: The gases are then passed through a series of distillation columns. Neon has a boiling point of -246 degrees Celsius (-410 degrees Fahrenheit), which is lower than that of oxygen and nitrogen but higher than that of argon. As the gases rise through the columns, neon vaporizes and is collected separately.
4. Purification: The collected neon is then purified to remove any impurities. This is achieved through a process called cryogenic distillation, where the neon is cooled to extremely low temperatures to remove any remaining contaminants.
5. Storage and Distribution: The purified neon is stored in high-pressure cylinders or liquid containers before being distributed to customers. It is important to handle neon with care due to its high pressure and potential for causing harm if released.
The collection of neon is crucial for various applications, including:
– Advertising: Neon signs are popular for their vibrant colors and energy efficiency. They are used in shopping centers, restaurants, and other businesses to attract customers.
– Lighting: Neon lighting is used in various settings, from streetlights to architectural lighting. It is known for its bright, colorful glow and is often used to create a festive atmosphere.
– Scientific Research: Neon is used in scientific research to study the properties of noble gases and to create plasma. It is also used in medical imaging and as a source of light in various instruments.
In conclusion, the collection of neon involves a series of steps to ensure its purity and quality. The gas is essential for various applications, from advertising to scientific research. As technology continues to advance, the methods for collecting neon may evolve, but its importance in various industries will remain unchanged.
