Description
What is Oxygen Gas?
What is O2 gas? Oxygen is one of the basic chemical elements, in its most common gaseous form, colorless, odorless, and tasteless in the air. Oxygen gas is a chemical element with the symbol O and belongs to group 16 of the elements. Its atomic number is 8 in the periodic table of chemical elements (Mendeleev).
This is one of the factors that determine and sustain life on Earth. Oxygen is also used in many industries, commerce, medicine, and scientific research.
It is used in blast furnaces for steel production. And oxygen is also an important component in the production of many different synthetic chemicals, including ammonia, alcohols, and plastics…
Oxygen and acetylene are also burned to create the high temperatures required for welding and cutting metals. When oxygen is cooled below -297°F (-183°C), it becomes a pale blue liquid used as rocket fuel.
What are the properties of Oxygen gas?
Oxygen gas is also called “air of life” because it sustains life for humans. It is the third most abundant element in the universe (by mass) and in the Earth’s crust.
It makes up 21% of the air and liquefies at -183 degrees Celsius, while it solidifies at -218.9 degrees Celsius.
Oxygen is a highly active nonmetal element that can easily form compounds with almost all other elements.
Under standard pressure and temperature conditions, two oxygen atoms bond together to form a colorless, odorless, and tasteless oxygen molecule, with the formula O2.
At room temperature and standard pressure levels, oxygen gas has strong oxidizing properties.
It can react with most metals to form oxides. Oxygen has various allotropes: O2, O3, O4, and O8, the latter two being recently discovered forms.
Applications of pure oxygen gas
Applications of medical oxygen in healthcare
Medical Oxygen Gas
- In medical facilities such as hospitals, liquid oxygen is used to provide oxygen gas to patients with breathing difficulties.
- Medical oxygen cylinders are used by astronauts to be able to walk in space.
- Oxygen cylinders for divers and mountaineers.
- Oxygen gas is used as a method to kill bacteria.
- Oxygen gas is used to treat carbon monoxide poisoning victims effectively.
Respiration
- Oxygen is a very necessary requirement for all living organisms. Through the process of aerobic respiration, energy is generated from food, allowing humans and animals to perform daily activities and survive.
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Applications of pure oxygen gas in analysis and experiments
- Running analyzers
- Chemical analysis
- Food analysis
- Used in laboratories at universities, research centers, research institutes, etc.
Applications of oxygen cylinders in industry
- Using oxygen gas cylinders in water and environmental treatment
- Applications in metallurgy and glassmaking (Enhancing combustion)
- One of the most reactive variants of oxygen is ozone O3, which is applied in many chemical reactions. The purpose of use is to accelerate chemical reaction rates and oxidize unwanted compounds.
- Oxygen gas is a necessity for the production of iron and steel in blast furnaces. Some mining companies use this gas to break down rocks.
Use of oxygen cylinders in industry
- Industries use oxygen gas to cut and weld molten metals, generating high temperatures of 3000°C and 2800°C.
- This is necessary for the oxy-hydrogen and oxy-acetylene torches. A typical welding process for metal parts being joined together.
Other applications of pure oxygen
- Oxygen gas is used effectively in water treatment and incineration.
- Scientists have used oxygen-18 and oxygen-16 isotopes in fossil research to determine the Earth’s climate thousands of years ago.
- Oxygen gas is also used in polyester polymers and the production of antifreeze. These polymers will be used to produce various fabrics and plastics.
- Used to produce paper and pulp, ceramics, glass, petroleum, pharmaceuticals, metallurgy, etc.
- Oxygen gas is used extensively in various industrial chemical sectors. It is used to produce acids, sulfuric acid, nitric acid, and other compounds.
Pure oxygen gas can be said to be a necessary gas with many applications in life, medicine, and science. So, what is pure oxygen, and how is it different from industrial oxygen? Let’s refer to this article from Migco to get a more comprehensive view of this type of gas.
Differences between medical and industrial oxygen gas
- Pure oxygen gas with medical-grade standards for breathing, life support, and aquaculture has a purity of 99.995% to 99.999%.
- Industrial oxygen gas used for welding and cutting has a lower purity of approximately 99.8%.
See more : Differences between medical oxygen and industrial oxygen gas
Refining oxygen gas
In 1895, Carl Paul Gottfried von Linde of Germany and British scientist William Hampson independently developed a method by reducing the temperature of air until it was liquefied.
By carefully distilling the liquid air, the different gas components can be separated. This air liquefaction process quickly became the primary source for producing high-quality, efficient oxygen, nitrogen, and argon gas.
At what temperature does oxygen liquefy?
Oxygen gas liquefies at a temperature of -183oC, with a pale blue color. Molecular oxygen (O2, commonly known as free oxygen) on Earth is thermodynamically unstable.
- Boiling point: 90.20 K (-182.95 °C, -297.31 °F)…
- Melting point: 54.36 K (-218.79 °C, -…
- Density: 1.429 g·cm−3 (at 0 °C, 101.325 kPa)
- Speed of sound: (gas, 27°C) 330 m·s−1
Things to note when using oxygen gas
Oxygen is a non-toxic gas, but when using oxygen gas, you also need to pay attention to avoid unwanted situations such as oxygen toxicity.
Oxygen toxicity occurs when someone inhales excessive pure oxygen.
Oxygen is a necessary condition for life, but only at a suitable level. That is, humans can only breathe air containing 21 percent oxygen. Other gaseous elements are inhaled simultaneously, including nitrogen and other elements.
When you inhale too much oxygen, humans experience shortness of breath and discomfort. Other symptoms are not obvious, including respiratory tract inflammation, convulsions, dizziness, or nausea.
In extreme cases, seizures or death can occur. Because toxicity can occur under normal atmospheric pressure conditions when the oxygen in the air is higher than 21%, and at a level of 50%, oxygen toxicity will occur.
Therefore, you need to be careful when using oxygen gas as well as other types of gases.
If you do not clearly understand whether the gas you are using is toxic or has any effects, please follow the articles or seek advice from MIGCO.
