Nitrogen Dioxide

Definition: Nitrogen Dioxide

Nitrogen Dioxide

Noun

1. A highly poisonous brown gas (NO2).

Specialty Definitions: Nitrogen Dioxide

Domain	Definitions
Chemistry	A compound of nitrogen and ooxygen(NO sub 2)produced in low concentration in the combustion of aviation fuels. It is a toxic brown gas which contributes to the irritant properties of smog. Source: European Union. (references)
Energy	This compound of nitrogen and oxygen is formed by the oxidation of nitric oxide (NO) which is produced by the combustion of solid fuels. (references)
Environment	A gas (NO2) consisting of one nitrogen and two oxygen atoms. It absorbs blue light and therefore has a redidish-brown color associated with it. (references)
	The result of nitric oxide combining with oxygen in the atmosphere; major component of photochemical smog. (NO2). (references)
Health	Nitrogen oxide (NO2). A highly poisonous gas. Exposure produces inflammation of lungs that may only cause slight pain or pass unnoticed, but resulting edema several days later may cause death. (From Merck, 11th ed) It is a major atmospheric pollutant that is able to absorb UV light that does not reach the earth's surface. (references)
Science	A gas consisting of one atom of nitrogen and two atoms of oxygen. (references)
Source: compiled by the editor from various references; see credits.

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Specialty Definition: Nitrogen dioxide

(From Wikipedia, the free Encyclopedia)

**Properties**
General
Name	Nitrogen dioxide
Chemical formula	NO₂
Appearance	brown/orange gas
Physical
Formula weight	46.01 amu
Melting point	-263.85 K (9.3 °C)
Boiling point	-252.00 K (21.15 °C)
Density
Crystal structure
Solubility
Thermochemistry
Δ_fH⁰_gas	kJ/mol
Δ_fH⁰_liquid	kJ/mol
Δ_fH⁰_solid	kJ/mol
S⁰_{gas, 1 bar}	J/mol·K
S⁰_{liquid, 1 bar}	J/mol·K
S⁰_solid	J/mol·K
Safety
Ingestion
Inhalation
Skin
Eyes
More info
SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references

The chemical compound nitrogen dioxide is an orange/brown gas and smells rather disgustingly (biting), though characteristical. It is poisonous.

Nitric oxide (NO) spontaneously produces the dioxide when exposed to air:

2 NO + O₂ --> NO₂

It is also generated in various reactions by nitric acid, e.g. when metalls, such as Copper or Silver, are exposed to nitric acid.

It reacts, even at normal temperature & pressure, with water, where it disproportionates to nitric and nitrous acid. That reaction is used in the Ostwald process.

Vapor pressure, mmHg: 400 @ 80 oC
Vapor density (air=1): 1.58
Specific gravity/density: 1.4494 at 20°C
Solubility in water: Reacts
Odor threshold: 2.0 mg/m3
Heat of vaporization: 9.110 kcal/mole

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Nitrogen dioxide."

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Crosswords: Nitrogen Dioxide

English words defined with "nitrogen dioxide": acid precipitation, acid rain, afterdamp ♦ Organic analysis. (references)

Specialty definitions using "nitrogen dioxide": ARC CUTTER, arc-air operator ♦ burn-out-scarfing operator ♦ GAS UTILITY, guide values ♦ Hydrox, Hydrox steel tube ♦ low calorific value, low heat value, lower heating value ♦ mixed blast process, Moore light lamp, Moore light tube ♦ net calorific value, net heating value, net specific energy ♦ OXYGEN-PLANT OPERATOR ♦ semiwater gas, Silo Filler's Disease, simple explosives, strata gases ♦ trace gas. (references)

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Commercial Usage: Nitrogen Dioxide

Domain	Title
Books	Economic evaluation of air quality targets for sulphur dioxide, nitrogen dioxide, fine and suspended particulate matter and lead : final report (reference) Fundamentals of Extrapolation Modeling of Inhaled Toxicants: Ozone and Nitrogen Dioxide (reference) High Resolution Spectral Atlas of Nitrogen Dioxide 559-597Nm (Springer Series in Chemical Physics, Vol 41) (reference) IEH assessment on indoor air quality in the home : nitrogen dioxide, formaldehyde, volatile organic compounds, house dust mites, fung, and bacteria (reference) Spectral atlas of nitrogen dioxide, 5530 to 6480 �A (reference) (more book examples)
Source: compiled by the editor from various references; see credits.

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Non-Fiction Usage: Nitrogen Dioxide

Subject	Topic	Quote
Business		However, nitrogen dioxide (NO2) and ozone (O3) are reported to be increasing, indicating that the new regulations are not having a significant impact on automobile emissions. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

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Frequency of Internet Keywords: Nitrogen Dioxide

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Expression	Frequency per Day
nitrogen dioxide	26
Source: compiled by the editor from various references; see credits.

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Modern Translations: Nitrogen Dioxide

Language		Translations for "nitrogen dioxide"; alternative meanings/domain in parentheses.
Danish		nitrogendioxyd (nitric oxide), Nitrogendioxid (Dinitrogen tetroxide), kvælstofdioxyd, Dinitrogentetraoxid (Dinitrogen tetroxide). (various references)

Dutch		stikstofdioxyde (nitric oxide), Stikstofdioxide (Dinitrogen tetroxide), Distikstoftetroxide (Dinitrogen tetroxide). (various references)

Finnish		typpidioksidi (nitric oxide). (various references)

French		Peroxyde d'azote, dioxyde d'azote (nitric oxide). (various references)

German		Stickstoffdioxid \| Stickstoffdioxyd, Stickstoffdioxid (Dinitrogen tetroxide, nitric oxide), Distickstofftetroxid (Dinitrogen tetroxide). (various references)

Greek		διοξείδιο του αζώτου. (various references)

Italian		ipoazotide 2)Tetrossido di azoto (Dinitrogen tetroxide), Biossido di azoto (Dinitrogen tetroxide, nitric oxide), biossido d'azoto. (various references)

Japanese Kanji		二酸化�'� (N2O, nitrous oxide). (various references)

Japanese Katakana		にさ�"かちっそ. (various references)

Pig Latin		itrogennay ioxideday

Portuguese		dióxido de azoto (nitric oxide). (various references)

Spanish		dióxido de nitrógeno (nitric oxide). (various references)

Swedish		kvävedioxid (nitric oxide). (various references)
Source: compiled by the editor from various translation references.

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Anagrams: Nitrogen Dioxide

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "d-d-e-e-g-i-i-i-n-n-o-o-r-t-x"
	-5 letters: ingredient, reignition, reindexing.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

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