メタン

Also known as CH4, marsh gas, methyl hydride, tetrahydridocarbon, Carbane, tetrahydrogen monocarbide, CH₄, nonessential gasotransmitter

炭化水素の一つ

OverviewAI-generated

Methane is a chemical compound with the formula CH₄. It has a canonical SMILES representation of "C" and an IUPAC name of methane. The substance has a mass of 16.031 and a weight of 16.043. Its electric dipole moment is 0, and it has zero hydrogen bond donors and acceptors. The compound was discovered in 1777.

Physical properties include a melting point of -182.49 or -182.46 and a boiling point of 111.4, -161, or -161.48. The speed of sound in methane is 1337, and its density is 422.36. Standard molar entropy is 186.3, while the standard enthalpy of formation is -74520. Combustion enthalpy is -890.3, and the autoignition temperature is 537.8. The global warming potential is 84, and the ozone depletion potential is 0. The ionization energy is 12.51.

Synthesized by Vinony from 31 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: CH4
Molecular weight: 16.043 g/mol
IUPAC name: methane
SMILES: C
InChIKey: VNWKTOKETHGBQD-UHFFFAOYSA-N
XLogP: 0.6
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

54,580 papers

Utilisation of low methane concentrations by methanotrophs.ReviewAdvances in microbial physiology · 2024He L, Lidstrom MEDOI: 10.1016/bs.ampbs.2024.04.005
Physiology of atmospheric methane-oxidizing bacteria.ReviewCurrent opinion in microbiology · 2025Tveit AT, Dumont MG, Schmider TDOI: 10.1016/j.mib.2025.102656
Ion spectroscopy in methane activation.ReviewMass spectrometry reviews · 2022Roithová J, Bakker JMDOI: 10.1002/mas.21698
Quantitative assessment of methane bioconversion based on kinetics and bioenergetics.ReviewBioresource technology · 2024Hwang IY, Kalyuzhnaya MG, Lee EYDOI: 10.1016/j.biortech.2024.131269
Methane emission from sewers.ReviewThe Science of the total environment · 2015Liu Y, Ni BJ, Sharma KR et al.DOI: 10.1016/j.scitotenv.2015.04.029
Strategies to Mitigate Enteric Methane Emissions from Ruminant Animals.ReviewJournal of microbiology and biotechnology · 2022Tseten T, Sanjorjo RA, Kwon M et al.DOI: 10.4014/jmb.2202.02019
Methane and the gastrointestinal tract.ReviewDigestive diseases and sciences · 2010Sahakian AB, Jee SR, Pimentel MDOI: 10.1007/s10620-009-1012-0
Methane Medicine: A Rising Star Gas with Powerful Anti-Inflammation, Antioxidant, and Antiapoptosis Properties.ReviewOxidative medicine and cellular longevity · 2018Jia Y, Li Z, Liu C et al.DOI: 10.1155/2018/1912746

via PubMed

Article · 日本語

メタン（独: Methan、英: methane）は、無色透明で無臭の気体（常温の場合）。天然ガスの主成分で、都市ガスに用いられている。メタンは最も単純な構造のアルカンで、1個の炭素原子に4個の水素原子が結合してできた炭化水素である。分子式は CH4。和名は沼気（しょうき）。CAS登録番号は [74-82-8]。カルバン (carbane) という組織名が提唱されたことがあるが、IUPAC命名法では非推奨である。

Abstract from DBpedia / Wikipedia · CC BY-SA