跳至內容

Methane

Wikipedia (chū-iû ê pek-kho-choân-su) beh kā lí kóng...
Methane
Stereo, skeletal formula of methane with some measurements added
Ball and stick model of methane
Ball and stick model of methane
Spacefill model of methane
Spacefill model of methane
Hō-miâ
Iu-sian ê IUPAC hō-miâ
Methane[1]
Hē-thóng-tek IUPAC hō-miâ
Carbane (never recommended[1])
Kî-tha hō-miâ
  • Marsh gas
  • Natural gas
  • Carbon tetrahydride
  • Hydrogen carbide
Sek-pia̍t-hō
3D model (JSmol)
3DMet B01453
1718732
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.739
EC Number 200-812-7
59
KEGG
MeSH Methane
RTECS number PA1490000
UNII
UN number 1971
Sèng-chit
CH4
Mole chit-liōng 16.04 g·mol−1
Gōa-māu Colorless gas
Khì-bī Odorless
Bi̍t-tō͘
  • 0.657 kg·m−3 (gas, 25 °C, 1 atm)
  • 0.717 kg·m−3 (gas, 0 °C, 1 atm)[2]
  • 422.8 g·L−1 (liquid, −162 °C)[3]
Iûⁿ-tiám −182.456 °C (−296.421 °F; 90.694 K)[3]
Hut-tiám −161.5 °C (−258.7 °F; 111.6 K)[3]
22.7 mg·L−1[4]
Iûⁿ-kái-tō͘ Soluble in ethanol, diethyl ether, benzene, toluene, methanol, acetone and insoluble in water
log P 1.09
14 nmol·Pa−1·kg−1
Conjugate acid Methanium
Conjugate base Methyl anion
−17.4×10−6 cm3·mol−1[5]
Kò͘-chō
Td
Tetrahedron
0 D
Jia̍t-hòa-ha̍k[6]
35.7 J·(K·mol)−1
186.3 J·(K·mol)−1
−74.6 kJ·mol−1
−891 kJ·mol−1
Gûi-hiám[7]
GHS pictograms GHS02: Flammable
GHS signal word DANGER
H220
P210
NFPA 704
Ín-hóe-tiám −188 °C (−306.4 °F; 85.1 K)
537 °C (999 °F; 810 K)
Explosive limits 4.4–17%
Koan-liân hòa-ha̍p-bu̍t
Related alkanes
Tû-liáu te̍k-pia̍t chí chhut, chu-liāu sī kun-kù bu̍t-chit ê piau-chún chōng-thài (tī 25 °C [77 °F], 100 kPa).
☒N cha-chèng (☑Y☒N sī siáⁿ ?)
Infobox chham-chiàu

Methane sī siōng kan-tan-ê chi̍t-khóaⁿ Alkane, i-ê hòa-ha̍k-sek siá-chòe CH4. 1-ê methane sī 1-ê carbon keng-iû 4-ê sp3 hūn-sêng kúi-tō lâi hām 4-ê hydrogen só͘ chó͘-sêng ê hoà-ha̍p-bu̍t. Methane sī thian-jiân-khì ê chú-iàu sêng-hun. In-ūi methane ū siong-tùi kah koâiⁿ-ê sán-liōng, só͘-í i sī chi̍t-ê chin jia̍t-mn̂g-ê jiân-liāu; put-kò, siu-chi̍p methane ē khì tú-tio̍h kī-su̍t-ê thiau-chiàn, in-ūi methane tī phiau-chún chōng-hóng chi-hā sī khì-thé.

  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. "Gas Encyclopedia". goân-loē-iông tī December 26, 2018 hőng khó͘-pih. November 7, 2013 khòaⁿ--ê. 
  3. 3.0 3.1 3.2 Haynes, p. 3.344
  4. Haynes, p. 5.156
  5. Haynes, p. 3.578
  6. Haynes, pp. 5.26, 5.67
  7. "Safety Datasheet, Material Name: Methane" (PDF). USA: Metheson Tri-Gas Incorporated. December 4, 2009. goân-loē-iông (PDF) tī June 4, 2012 hőng khó͘-pih. December 4, 2011 khòaⁿ--ê. 
  8. NOAA Office of Response and Restoration, US GOV. "METHANE". noaa.gov. goân-loē-iông tī January 9, 2019 hőng khó͘-pih. March 20, 2015 khòaⁿ--ê. 

Tsham-khó bûn-hèn

[siu-kái | kái goân-sí-bé]

Guā-pōo lên-ket

[siu-kái | kái goân-sí-bé]

Wikimedia Commons téng ê siong-koan tóng-àn: Methane

Khì Wiktionary chhâ
methane chit ê sû.