望“二氧化氮”个源码

'''二氧化氮'''（化學式：NO<sub>2</sub>）是黄棕色或红棕色个[[气体]]，是[[化学工业]]里向合成[[硝酸]]个中间产物，每年有大约摸几百万吨畀排放到[[大气]]里向，乃歇是第一大气污染源。

== 制备 ==
工业上用氧气氧化[[一氧化氮]]获得二氧化氮：
: <math>\mathrm{2NO} + \mathrm{O}_2 \longrightarrow \mathrm{2NO}_2</math>

也可以通过[[五氧化二氮]]个热分解来制备NO<sub>2</sub>。五氧化二氮是通过[[硝酸]]脱水得到个。
: <math>\rm 2HNO_3 \longrightarrow N_2O_5+H_2O\,</math>
: <math>\rm 2N_2O_5 \longrightarrow 4NO_2+O_2\uparrow\,</math>
拿产生个气体冷凝来除脱硝酸，再通过[[五氧化二磷]]干燥，就得到著比较纯净个二氧化氮。

== 外部链接 ==
* [http://www.ilo.org/public/english/protection/safework/cis/products/icsc/dtasht/_icsc09/icsc0930.htm International Chemical Safety Card 0930]
* [http://www.npi.gov.au/database/substance-info/profiles/67.html National Pollutant Inventory - Oxides of nitrogen fact sheet]
* [http://www.cdc.gov/niosh/npg/npgd0454.html NIOSH Pocket Guide to Chemical Hazards]
* WHO-Europe reports: [http://www.euro.who.int/document/e79097.pdf Health Aspects of Air Pollution (2003)] {{Wayback|url=http://www.euro.who.int/document/e79097.pdf |date=20030506051653 }} (PDF) and "[http://www.euro.who.int/document/E82790.pdf Answer to follow-up questions from CAFE (2004)] {{Wayback|url=http://www.euro.who.int/document/E82790.pdf |date=20040626201154 }} (PDF)
* [http://www.greenfacts.org/air-pollution/nitrogen-dioxide-no2/index.htm Nitrogen Dioxide Air Pollution] {{Wayback|url=http://www.greenfacts.org/air-pollution/nitrogen-dioxide-no2/index.htm |date=20080910045543 }}
* [http://esamultimedia.esa.int/images/EarthObservation/pollution_global_hires.jpg Nitrogen dioxide pollution in the world (image)]
* [http://www.compchemwiki.org/index.php?title=Nitrogen_dioxide Computational Chemistry Wiki]

{{氧化物}}
[[Category:氮氧化物]]