Methane

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Methane
Ball and stick model of methane
Ball and stick model of methane
Spacefill model of methane
Spacefill model of methane
Names
Preferred IUPAC name
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|- | colspan=2 style="text-align:left;" | Systematic IUPAC name

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|- | colspan=2 style="text-align:left;" | Other names

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|- ! colspan=2 style="background: #f8eaba; text-align: center;" |Identifiers

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| Beilstein Reference | 1718732 |- | ChEBI | {| {| style="margin: 0.5em auto; background: #Afe1f3; border: 2px solid #000000; font-size: 95%; text-align: center;" |- | NAHHHH BLUD THIS PAGE IS FROM OHIO 💀💀💀😭
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|- | ECHA InfoCard | 100.000.739 |- | EC Number | {| {| style="margin: 0.5em auto; background: #Afe1f3; border: 2px solid #000000; font-size: 95%; text-align: center;" |- | NAHHHH BLUD THIS PAGE IS FROM OHIO 💀💀💀😭
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| Gmelin Reference | 59 |- |

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|- | MeSH | Methane |- |

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|- | RTECS number | {| {| style="margin: 0.5em auto; background: #Afe1f3; border: 2px solid #000000; font-size: 95%; text-align: center;" |- | NAHHHH BLUD THIS PAGE IS FROM OHIO 💀💀💀😭
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|- | UN number | 1971 |- |

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|- | align="center" colspan="2" | |-

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  • C

|- ! colspan=2 style="background: #f8eaba; text-align: center;" |Properties

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| CH4

|- | Molar mass

| 16.04 g·mol−1

|- | Appearance | Colorless gas |- | Odor | Odorless |- | Density | {| {| style="margin: 0.5em auto; background: #Afe1f3; border: 2px solid #000000; font-size: 95%; text-align: center;" |- | NAHHHH BLUD THIS PAGE IS FROM OHIO 💀💀💀😭
|- |} |- | Melting point | −182.5 °C; −296.4 °F; 90.7 K

|- | Boiling point | −161.50 °C; −258.70 °F; 111.65 K[2]

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| 22.7 mg·L−1 |-

| Solubility | Soluble in ethanol, diethyl ether, benzene, toluene, methanol, acetone and insoluble in water |-




| log P | 1.09 |-

| kH | 14 nmol·Pa−1·kg−1 |-


| Conjugate acid | Methanium |- | Conjugate base | Methyl anion |-




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| −12.2×10−6 cm3·mol−1 |- ! colspan=2 style="background: #f8eaba; text-align: center;" |Structure

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| Td |-



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| Tetrahedron |-

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| 0 D |- ! align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" | Thermochemistry |- | Std enthalpy of
formation ΔfHo298 | −74.87 kJ·mol−1 |- | Std enthalpy of
combustion ΔcHo298 | −891.1 to −890.3 kJ·mol−1 |- | Standard molar
entropy So298 | 186.25 J·(K·mol)−1 |- | Specific heat capacity, C | 35.69 J·(K·mol)−1 |- ! align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" | Hazards

|-





| NFPA 704 |

4
2
0
 

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| Explosive limits | 4.4–17% |- [3]




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|} Methane is an organic compound with the chemical formula CH

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. It is an alkane with one carbon atom. It is often found as the main part of natural gas. Methane is a greenhouse gas[4][5] 23 times more effective than carbon dioxide. It is also less stable and slowly oxidates by oxygen to carbon dioxide and water.

Uses[change | change source]

Methane is used in gas taps in places such as kitchens, chemistry classrooms, laboratories, etc. as it burns very easily because of its simple molecular structure.

Molecular structure[change | change source]

Methane's molecular structure is very simple. It is a single carbon atom surrounded by four hydrogen atoms.

Production[change | change source]

Methane can be made by many chemical ways, but usually is found in natural gas and is obtained by fractional distillation, after it has become liquid.

References[change | change source]

  1. ↑ 1.0 1.1 "Front Matter". Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. pp. 3–4. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4. Methane is a retained name (see P-12.3) that is preferred to the systematic name 'carbane', a name never recommended to replace methane, but used to derive the names 'carbene' and 'carbyne' for the radicals H2C2• and HC3•, respectively.
  2. ↑ Pubchem. "Methane". pubchem.ncbi.nlm.nih.gov.
  3. ↑ NOAA Office of Response and Restoration, US GOV. "METHANE". noaa.gov.
  4. ↑ White House Unveils Plans to Cut Methane Emissions March 28, 2014 New York Times
  5. ↑ Brad Plumer (December 12, 2016). "Methane levels in the atmosphere are now rising at their fastest pace in decades; It's a big problem for climate change". Vox.com. Retrieved 18 December 2016.
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