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295582

Sigma-Aldrich

Nitrogen dioxide

≥99.5%

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Synonym(s):
Dinitrogen tetroxide, Nitrogen peroxide, Nitrogen tetroxide
Empirical Formula (Hill Notation):
NO2
CAS Number:
10102-44-0
Molecular Weight:
46.01
EC Number:
233-272-6
MDL number:
MFCD00085341
UNSPSC Code:
12142100
PubChem Substance ID:
24857797
NACRES:
NA.22

vapor density

1.58 (21 °C, vs air)

Quality Level

100

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

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Pictograms

Flame over circleCorrosion
GHS03,GHS05

Signal Word

Danger

Hazard Statements

H270,H314,H412

Hazard Classifications

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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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
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
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
Michael Jerrett et al.
American journal of respiratory and critical care medicine, 188(5), 593-599 (2013-06-29)
Although substantial scientific evidence suggests that chronic exposure to ambient air pollution contributes to premature mortality, uncertainties exist in the size and consistency of this association. Uncertainty may arise from inaccurate exposure assessment. To assess the associations of three types
Perry Hystad et al.
Epidemiology (Cambridge, Mass.), 24(5), 762-772 (2013-05-17)
There is accumulating evidence that air pollution causes lung cancer. Still, questions remain about exposure misclassification, the components of air pollution responsible, and the histological subtypes of lung cancer that might be produced. We investigated lung cancer incidence in relation
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