编辑“︁氮”︁（章节）

===氮气===
氮气主要用作保护气体，避免氧气导致火灾、爆炸或氧化。氮气的用途包括：{{sfn|Greenwood|Earnshaw|1997|pp=409–11}}
*填充到包装食品中避免[[酸败]]和其它[[氧化]]过程，使其新鲜。氮气是食品添加剂，[[E编码]] E941。<ref>{{Cite book | url = https://books.google.com/books?id=Fvm-sqd90-oC&pg=PA591 | page = 591 | title = Food Additives in Europe 2000 | isbn = 978-92-893-0829-8 | year = 2002 | last1 = Ministers | first1 = Nordic Council of | access-date = 2015-12-20 | archive-date = 2016-02-05 | archive-url = https://web.archive.org/web/20160205191759/https://books.google.com/books?id=Fvm-sqd90-oC&pg=PA591 | url-status = live }}</ref>
*成为[[白炽灯]]里[[氩气]]便宜的替代品。<ref>{{Cite book|url=https://books.google.com/books?id=W0HW8wgmQQsC&pg=PA90|isbn=978-0-85404-690-4|editor=Harding, Charlie|date=2002|publisher=Royal Society of Chemistry|location=Cambridge|title=Elements of the p Block|access-date=2020-08-24|archive-date=2021-10-01|archive-url=https://web.archive.org/web/20211001035604/https://books.google.com/books?id=W0HW8wgmQQsC&pg=PA90|url-status=live}}</ref>
*用于[[气体灭火|灭火]]。{{sfn|Greenwood|Earnshaw|1997|pp=409–11}}
*制造[[不锈钢]]。<ref>{{Cite book|title=High nitrogen steels: structure, properties, manufacture, applications|author=Gavriliuk, V. G.|author2=Berns, Hans|url=https://books.google.com/books?id=6eF4AfEwF4YC&pg=PA338|publisher=Springer|date=1999|isbn=978-3-540-66411-6|access-date=2020-08-24|archive-date=2021-10-01|archive-url=https://web.archive.org/web/20211001035605/https://books.google.com/books?id=6eF4AfEwF4YC&pg=PA338|url-status=live}}</ref>
*通过[[渗氮]]对钢[[表面硬化]]。<ref name="Duplex">{{cite journal|doi=10.1179/1743284715Y.0000000098|last1=Meka|first1=S. R.|last2=Chauhan|first2=A.|last3=Steiner|first3=T.|last4=Bischoff|first4=E.|last5=Ghosh|first5=P. K.|last6=Mittemeijer|first6=E. J.|year=2015|title=Generating duplex microstructures by nitriding; nitriding of iron based Fe–Mn alloy|page=1743284715Y.000|journal=Materials Science and Technology|volume=32 |issue=9 |doi-access=free}}</ref>
*由于空气中的水蒸气和氧气的[[氧化]]会导致不均匀的涨缩，{{sfn|Greenwood|Earnshaw|1997|pp=409–11}}所以氮气成为了赛车和飞机[[轮胎]]的填充气体。<ref>{{cite web|url=http://auto.howstuffworks.com/question594.htm|title=Why don't they use normal air in race car tires?|publisher=Howstuffworks|access-date=2006-07-22|date=2001-03-16|archive-date=2011-07-12|archive-url=https://web.archive.org/web/20110712225925/http://auto.howstuffworks.com/question594.htm|url-status=live}}</ref>