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nitrogen dioxide

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nitrogen dioxide

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Also known as nitrogen peroxide, nitrogen(IV) oxide, deutoxide of nitrogen

chemical compound

OverviewAI-generated

Nitrogen dioxide is a chemical compound with the formula NO₂. It has a standard enthalpy of formation of 33.1 and a standard molar entropy of 240.1. The substance possesses a density of 1.44, a melting point of 15, and a boiling point of 70. Its vapor pressure is 720, and its ionization energy is 9.75. The electric dipole moment is 0.316.

The compound has a mass of 45.993 and a weight of 46.006. It features a canonical SMILES notation of N(=O)[O]. Safety data indicates an immediately dangerous to life or health level of 37.6, a ceiling exposure limit of 9, and a short-term exposure limit of 1.8. The NIOSH Pocket Guide ID for this substance is 0454.

Additional properties include an xlogp of -0.3, a tpsa of 30.4, and two hydrogen bond acceptors with no hydrogen bond donors. The molecule carries a charge of 0. There are 26,242 related entries in the PubMed database.

Synthesized by Vinony from 29 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula
NO2
Molecular weight
46.006 g/mol
SMILES
N(=O)[O]
InChIKey
JCXJVPUVTGWSNB-UHFFFAOYSA-N
XLogP
-0.3
Polar surface area
30.4 Ų
H-bond donors
0
H-bond acceptors
2
Formal charge
0

via PubChem

Research

26,242 papers

via PubMed

~13 min read

Encyclopedic overview

Nitrogen dioxide at various temperaturesNitrogen dioxide gas being released from the reaction of copper and nitric acid

Names

Excerpted from Wikipedia’s “nitrogen dioxide” article, available under the CC BY-SA 4.0 licence.

Gallery (12)