Nitrous Oxide

Nitrous oxide, commonly known as laughing gas or sweet air,[1] is a chemical compound with the formula N2O. It is an oxide of nitrogen. At room temperature, it is a colorless non-flammable gas, with a slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it, a property that has led to its recreational use as a dissociative anesthetic. It is also used as an oxidizer in rocketry and in motor racing to increase the power output of engines. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen.


Air is the natural atmosphere of the earth, a nonflammable, colorless, odorless gas that consists of a mixture of gaseous elements (with argon, water vapor, a small amount of carbon dioxide, and traces of many other constitutes).


Oxygen constitutes approximately by 21 % of the air. It is a colorless, odorless gas. Oxygen is supplied both as liquid and as compressed gas.


The principal uses of oxygen stems from its strong oxidizing and life sustaining properties. It is used in medicine for therapeutic purposes.
• Steel making
• Metal cutting
• Oxidation
• Production of Fuels and chemicals
• Glass making
• Breathing
• Bleaching