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Nitrous Oxide


Chemical symbol



In the atmosphere

Boiling point:

- 90.86 °C

Freezing point:

- 88.48 °C

Chemical properties:

Colorless, non-flammable, with a slight metallic and scent. At high temperatures, dinitrogen monoxide is a powerful oxidizer similar to oxygen, soluble in water.


In the laboratory, people prepare N2O by pyrolysis of ammonium nitrate salt.

N2O has many applications in the industrial and medical sectors. In industry, N2O is used to produce semiconductors, dinitrogen monoxide gas is the oxygen source for chemical vapor deposition (CVD) of silicon oxynitride (doped or undoped) or silicon. In addition, N2O is used to monitor environmental waste in industry, analyze trace impurities, is used in ASS machines, heavy metal analyzers, and is used as an oxidant in rockets. In medicine, N2O is a gas that has the function of analgesic and anesthetic, or combined with other gases to form an anesthetic. N2O acts on GABA (Gamma Aminobutyric Acid) cells, which has the function of inhibiting nerve cells that cause drowsiness. During that time, this gas also interferes with the production of endogenous nerve messengers such as opioid peptides and serotonin - a hormone capable of creating feelings of excitement and happiness. It is the release of endogenous nerve contact cells that inhibits the emission of pain sensation in the brain and activates the ability to reduce pain.

N2O gas was first discovered in 1772 by Joseph Priestley. An important step towards this was in the design of an experimental apparatus for collecting gases on water, by Stephen Hales in the early 1700s.

Nowadays, Dinitrogen monoxide has the effect of freezing and making fresh cream in whipped cream spray bottles or used in cafes.

See more applications of Dinitrogen Monoxide gas here:

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