Metana

Metana
Gambar	Gambar
	Jeneng IUPAC Metana (substitutif); Tetrahidridokarbon (aditif);
	Jeneng liya Karbon tetrahidrida[butuh sitiran]; Marsh gas; Metil hidrida;
Identifikasi
Nomor CAS	[74-82-8]
PubChem	297
Nomer EINECS	200-812-7
KEGG	C01438
MeSH	Methane
ChEBI	CHEBI:16183
Nomer RTECS	PA1490000
SMILES	C
Réferènsi Baeilstein	1718732
Réferènsi Gmelin	59
3DMet	B01450
Sifat
Rumus kimia	CH4
Massa molar	16.04 g mol−1
Panampilan	gas tanpa warna
Ambu	ora mambu
Densitas	655.6 μg cm−3
Titik leleh	-187 °C, 86 K, -305 °F
Titik umob	-162 °C, 111 K, -260 °F
Kelarutan dalam air	35 mg dm−3 (at 17 °C)
log P	1.09
Termokimia
Entalpi; pambentukan; standar (ΔfHo298)	−74.87 kJ mol−1
Entalpi; pangobongan; standar ΔcHo298	−891.1–−890.3 kJ mol−1
Entropi molar; standar So298	186.25 J K−1 mol−1
Kapasitas panas, C	{{{HeactCapacity}}}
Bahaya
Klasifikasi EU	F+
EU Index	601-001-00-4
NFPA 704	4 1 0
Frasa-R	Cithakan:R12
Frasa-S	Cithakan:S2, Cithakan:S9, S16, Cithakan:S33
Titik murub	−188 °C
Autoignition; temperature	537 °C
Explosive limits	5–15%
Senyawa kagandhèng
alkana kagandhèng	Etana; Propana
Senyawa kagandhèng	Klorometana; Formaldehida; Asam format; Metanol; Silana
	Kejaba ditélakaké suwaliké, data ing ndhuwur kanggo; ing suhu lan tekanan standar (25°C, 100 kPa); Sangkalan lan referensi

Metana hidrokarbon paling prasaja sing wanguné gas kanthi rumus kimia C H₄. Metana murni ora mambu, nanging yèn dipigunakaké kanggo kaperlon komersial, racaké ditambahaké sithik ambu welirang kanggo ndhétèksi kabocoran sing mungkin dumadi. Metana duwé sipat racun lan gampang kobong

Réferènsi

Pranala njaba

Gavin Schmidt, Methane: A Scientific Journey from Obscurity to Climate Super-Stardom Archived 2004-09-10 at the Wayback Machine., NASA Goddard, September 2004
Methane thermodynamics
International Chemical Safety Card 0291
Methane Hydrates
Safety data for methane Archived 2007-10-11 at the Wayback Machine.
Methane-eating bug holds promise for cutting greenhouse gas Archived 2010-06-04 at the Wayback Machine.. Media Release, GNS Science, New Zealand]
Catalytic conversion of methane to more useful chemicals and fuels Archived 2010-07-02 at the Wayback Machine.
Methane as a Savior of the Dairy Industry Archived 2009-08-28 at the Wayback Machine.

[1]

[2]

[3]

Metana

Gambar	Gambar
Jeneng IUPAC Metana^[1] (substitutif) Tetrahidridokarbon^[1] (aditif)
Jeneng liya Karbon tetrahidrida^{[butuh sitiran]} Marsh gas^[2] Metil hidrida^[2]
Identifikasi
Nomor CAS	[74-82-8]
PubChem	297
Nomer EINECS	200-812-7
KEGG	C01438
MeSH	Methane
ChEBI	CHEBI:16183
Nomer RTECS	PA1490000
SMILES	C
Réferènsi Baeilstein	1718732
Réferènsi Gmelin	59
3DMet	B01450
Sifat
Rumus kimia	CH₄
Massa molar	16.04 g mol⁻¹
Panampilan	gas tanpa warna
Ambu	ora mambu
Densitas	655.6 μg cm⁻³
Titik leleh	-187 °C, 86 K, -305 °F
Titik umob	-162 °C, 111 K, -260 °F
Kelarutan dalam air	35 mg dm⁻³ (at 17 °C)
log P	1.09
Termokimia
Entalpi pambentukan standar (Δ_fH^o₂₉₈)	−74.87 kJ mol⁻¹
Entalpi pangobongan standar Δ_cH^o₂₉₈	−891.1–−890.3 kJ mol⁻¹
Entropi molar standar S^o₂₉₈	186.25 J K⁻¹ mol⁻¹
Kapasitas panas, C	{{{HeactCapacity}}}
Bahaya
Klasifikasi EU	F+
EU Index	601-001-00-4
NFPA 704	4 1 0
Frasa-R	Cithakan:R12
Frasa-S	Cithakan:S2, Cithakan:S9, S16, Cithakan:S33
Titik murub	−188 °C
Autoignition temperature	537 °C
Explosive limits	5–15% ^[3]
Senyawa kagandhèng
alkana kagandhèng	Etana Propana
Senyawa kagandhèng	Klorometana Formaldehida Asam format Metanol Silana
Kejaba ditélakaké suwaliké, data ing ndhuwur kanggo ing suhu lan tekanan standar (25°C, 100 kPa) Sangkalan lan referensi