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295582

Sigma-Aldrich

Nitrogen dioxide

≥99.5%

Synonym(s):

Dinitrogen tetroxide, Nitrogen peroxide, Nitrogen tetroxide

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About This Item

Empirical Formula (Hill Notation):
NO2
CAS Number:
Molecular Weight:
46.01
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22

vapor density

1.58 (21 °C, vs air)

Quality Level

vapor pressure

14.33 psi ( 20 °C)

Assay

≥99.5%

bp

21 °C (lit.)

mp

−11 °C (lit.)

density

2.62 g/mL at 25 °C (lit.)

SMILES string

[O-][N+]=O

InChI

1S/NO2/c2-1-3

InChI key

JCXJVPUVTGWSNB-UHFFFAOYSA-N

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Recommended products

Stainless steel control valves Z146951, Z187224 or either of stainless steel regulators Z148504 and Z148512 and a "T"-purge valve Z151661 is recommended.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 2 Inhalation - Eye Dam. 1 - Ox. Gas 1 - Press. Gas Liquefied gas - Skin Corr. 1B

Storage Class Code

2A - Gases

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Narjes Madhloum et al.
Environment international, 130, 104853-104853 (2019-06-22)
Elevated blood pressure (BP) in early life may lead to cardiovascular morbidity and mortality in later life. Air pollution exposure has been associated with increased BP in adults and children, but the contribution of prenatal air pollution exposure has rarely
Martin Kraft et al.
International journal of hygiene and environmental health, 208(4), 305-318 (2005-08-05)
The presented overview concerning health relevant effects caused by nitrogen dioxide (NO2) resumes the current state of results from animal experiments and human studies (epidemiology and short-term chambers studies). NO2 concentrations applied in animal experiments were mostly considerably higher than
Massimo Stafoggia et al.
Environmental health perspectives, 121(9), 1026-1033 (2013-06-20)
Evidence on the short-term effects of fine and coarse particles on morbidity in Europe is scarce and inconsistent. We aimed to estimate the association between daily concentrations of fine and coarse particles with hospitalizations for cardiovascular and respiratory conditions in
Ikenna C Eze et al.
Environment international, 70, 95-105 (2014-06-10)
Air pollution is an important risk factor for global burden of disease. There has been recent interest in its possible role in the etiology of diabetes mellitus. Experimental evidence is suggestive, but epidemiological evidence is limited and mixed. We therefore
Yann Sellier et al.
Environment international, 66, 165-173 (2014-03-07)
Spatially resolved exposure models are increasingly used in epidemiology. We previously reported that, although exhibiting a moderate correlation, pregnancy nitrogen dioxide (NO2) levels estimated by the nearest air quality monitoring station (AQMS) model and a geostatistical model, showed similar associations

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