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Merck
CN

85844

Sigma-Aldrich

Nitrogen dioxide

purum, ≥98.5%

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:
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vapor density

1.58 (21 °C, vs air)

vapor pressure

14.33 psi ( 20 °C)

grade

purum

Assay

≥98.5%

impurities

≤0.3% water

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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Packaging

Cylinder with net ~6 kg

Other Notes

Sales restrictions may apply

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 2 Inhalation - Eye Dam. 1 - Ox. Gas 1 - Press. Gas Compr. 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

Regulatory Information

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Elizabeth M Hendrick et al.
Journal of the Air & Waste Management Association (1995), 63(7), 844-854 (2013-08-10)
The U.S. Environmental Protection Agency (EPA) plume volume molar ratio method (PVMRM) and the ozone limiting method (OLM) are in the AERMOD model to predict the 1-hr average NO2/NO(x) concentration ratio. These ratios are multiplied by the AERMOD predicted NO(x)
Kim D Lu et al.
The Journal of allergy and clinical immunology, 131(4), 1017-1023 (2013-02-14)
Both being overweight and exposure to indoor pollutants, which have been associated with worse health of asthmatic patients, are common in urban minority populations. Whether being overweight is a risk factor for the effects of indoor pollutant exposure on asthma
K Ghannam et al.
Journal of the Air & Waste Management Association (1995), 63(2), 190-204 (2013-03-12)
This paper examines the relative source contribution to ground-level concentrations of carbon monoxide (CO), nitrogen dioxide (NO2), and PM10 (particulate matter with an aerodynamic diameter < 10 microm) in a coastal urban area due to emissions from an industrial complex
Aurore Philibert et al.
Environmental pollution (Barking, Essex : 1987), 177, 156-163 (2013-03-19)
Nitrous oxide is a potent greenhouse gas, with a global warming potential 298 times greater than that of CO2. In agricultural soils, N2O emissions are influenced by a large number of environmental characteristics and crop management techniques that are not
G M Lazzerini et al.
Scientific reports, 3, 1161-1161 (2013-02-05)
Here we show that electrical tuning of the sensitivity of chemitransistor sensors, namely field-effect-transistors (FETs) exploiting nano/mesostructured sensing materials, can be used to effectively address two chief problems of state-of-the-art gas sensors, specifically fabrication reliability and degradation by aging. Both

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