methane

• ChemBase ID: 128306
• Molecular Formular: CH4
• Molecular Mass: 16.04246
• Monoisotopic Mass: 16.03130013
• SMILES: C
• Canonical SMILES: C
• InChI: InChI=1S/CH4/h1H4
• InChIKey: VNWKTOKETHGBQD-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: methane
• IUPAC Traditional name: methane
• Synonyms: Methane-12C; Methane; Carbon powder, activated, Norit GSX, steam activated, acid washed; Carbon slug, activated, 6-8 mesh; Graphite rod, 5cm (2.0in) dia x 61cm (24in) long; Carbon felt, 6.35mm (0.25in) thick; Carbon, plasma standard solution, Specpure®, C 10,000 g/ml; Carbon powder, activated; Carbon, plasma standard solution, Specpure®, C 1000 g/ml; Methane; (7α,11α,17α)-11,17-Dihydroxy-3-oxopregn-4-ene-7,21-dicarboxylic Acid γ-Lactone Methyl Ester; 11α,17β-Dihydroxypregn-4-en-3-one 7α,21-dicarboxylic Acid γ-Lactone Methyl Ester; 11α-Hydroxymexrenone; 11α-Hydroxy Mexrenone; Carbon, activated, Norit ROW 0.8mm pellets, steam activated; Carbon sputtering target, 50.8mm (2.0in) dia x 6.35mm (0.250in) thick; Carbon sputtering target, 76.2mm (3.0in) dia x 6.35mm (0.250in) thick; Carbon sputtering target, 76.2mm (3.0in) dia x 3.18mm (0.125in) thick; Carbon sputtering target, 50.8mm (2.0in) dia x 3.18mm (0.125in) thick; Carbon black, acetylene, 50% compressed; Carbon yarn, woven from 0.076mm (0.003in) dia fibers; Glassy carbon spherical powder, 630-1000 micron, type 2; Carbon felt, 1.27cm (0.5in) thick; Glassy carbon spherical powder, 200-400 micron, type 2; Glassy carbon splinter powder, 2000-3150 micron, type 1; Glassy carbon splinter powder, 630-1000 micron, type 2; Glassy carbon splinter powder, 2000-3150 micron, type 2; Glassy carbon splinter powder, 3150-4000 micron, type 2; Glassy carbon splinter powder, 1000-2000 micron, type 2; Glassy carbon splinter powder, 3150-4000 micron, type 1; Glassy carbon splinter powder, 630-1000 micron, type 1; Carbon, activated, -4+8 mesh; Carbon felt, 3.18mm (0.125in) thick; Carbon felt, 2.54cm (1.0in) thick; Carbon, activated, 2mm & down; 2,2,3,3,4,4,4-Heptafluorobutanal hydrate; 2,2,3,3,4,4,4-Heptafluorobutyraldehyde hydrate, tech.; C; 甲烷-12C; 甲烷; 碳粉末,活性,, Norit GSX,蒸汽活化, 酸洗; 碳块,活性,6-8目; 石墨棒, 5cm (2.0in) 直径 x 61cm (24in) 长; 碳毡, 6.35mm (0.25in)厚; 碳,等离子标准溶液, Specpure®, C 10,000®g/ml; 碳粉末, 活化的; 碳,等离子标准溶液, Specpure®, C 1000®g/ml; 活性碳, Norit ROW 0.8mm球状,蒸汽活化; 碳溅射靶, 50.8mm (2.0in) 直径 x 6.35mm (0.250in) 厚; 碳溅射靶, 76.2mm (3.0in) 直径 x 6.35mm (0.250in) 厚; 碳溅射靶, 76.2mm (3.0in) 直径 x 3.18mm (0.125in) 厚; 碳溅射靶, 50.8mm (2.0in) 直径 x 3.18mm (0.125in) 厚; 碳黑, 来自乙炔, 50%压缩, 99.9+% (metals basis); 碳纱,0.076mm (0.003in) 直径的纤维织成; 玻璃碳球状粉末, 630-1000 微米, type 2; 碳毡, 1.27cm (0.5in)厚; 玻璃碳球状粉末, 200-400微米, type 2; 玻璃碳片状粉末, 2000-3150微米, type 1; 玻璃碳片状粉末, 630-1000微米, type 2; 玻璃碳片状粉末, 2000-3150微米, type 2; 玻璃碳片状粉末, 3150-4000微米, type 2; 玻璃碳片状粉末, 1000-2000微米, type 2; 玻璃碳片状粉末, 3150-4000微米, type 1; 碳毡, 2.54cm (1.0in)厚; 玻璃碳片状粉末, 630-1000微米, type 1; 活性碳, -4+8目; 碳毡, 1.27cm (0.5in) 厚; 碳毡, 3.18mm (0.125in)厚; 活性碳, 2mm 或更小; 2,2,3,3,4,4,4-七氟丁醛 水合物, tech.

Database IDs

• CAS Number: 192704-56-6; 375-02-0; 7440-44-0; 274676-47-0; 1333-86-4; 74-82-8
• EC Number: 215-609-9; 206-783-7; 231-153-3; 200-812-7; 231-955-3
• MDL Number: MFCD00150588; MFCD00008279; MFCD00144065; MFCD00133992
• Beilstein Number: 1367365; 1718732
• PubChem SID: 24845254; 24869888; 24857787; 162222614; 24872541
• PubChem CID: 297
• CHEBI ID: 16183
• CHEMBL: 17564
• Chemspider ID: 291
• Gmelin ID: 59
• KEGG ID: C01438
• MeSH Name: Methane
• Wikipedia Title: Methane

CALCULATED PROPERTIES

• H Acceptors: 0
• H Donor: 0
• LogD (pH = 5.5): 1.080923
• LogD (pH = 7.4): 1.080923
• Log P: 1.080923
• Molar Refractivity: 6.3468 cm^3
• Polarizability: 2.601 Å^3
• Polar Surface Area: 0.0 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 22.7 mg L^-1 in water
• Apperance: ≈10.6g/10x10cm; ≈19.1g/10x10cm; ≈2.2kg/pc; ≈2.4g/10x10cm; ≈4.8g/10x10cm; ≈9.86g/10x10cm; Colorless gas; gas; Hot Pressed; Liquid; S.A. 75m2/g, Bulk density 80-120g/L
• Melting Point: -182.45°C (90.7K); -183 °C(lit.)
• Boiling Point: -161 °C(lit.); -164.15 - -160.15°C (109 - 113 K)
• Flash Point: -188 °C; -306.4 °F
• Auto Ignition Point: 537 °C; 998 °F
• Density: 0.6556 g L^-1; 0.716 g/mL at 25 °C(lit.)
• Refractive Index: 1.3200
• Vapor Density: 0.55 (vs air)
• Partition Coefficient: 1.09
• Henry Constant: 14 nmol Pa^-1 kg^-1
• Odor: Odorless
• Heat Capacity: 35.69 J K^-1 mol^-1
• Std enthalpy of combustion: -891.1–-890.3 kJ mol^-1
• Std enthalpy of formation: -74.87 kJ mol^-1
• Std molar entropy: 186.25 J K^-1 mol^-1
• Transition Temperature: critical temperature -82.1 °C

Safety Information

• RTECS: FF5250100; FF5800000; PA1490000
• European Hazard Symbols: Flammable (F); Highly flammable (F+); X; Irritant (Xi)
• UN Number: 1971; UN1325; UN1362
• German water hazard class: nwg
• Hazard Class: 2.1; 4.1; 4.2
• Packing Group: III
• Risk Statements: 11; 11-40; 12; 36/37/38; R12
• Safety Statements: 23-26-37; 33; 36/37; 9-16-33; S2, S16, S33
• TSCA Listed: U; 否; 是
• EU Index: 601-001-00-4
• GHS Pictograms: GHS flame; GHS02; GHS04; GHS07; GHS08
• GHS Signal Word: DANGER; Danger
• NFPA704:
  

  4

  1

  0
• Explode Limits: 15 %; 5–15%
• GHS Hazard statements: 220; H220-H280; H228; H228-H252; H228-H351; H315-H319-H335
• GHS Precautionary statements: 210; P210-P241-P280-P235+P410-P370+P378A-P420; P210-P241-P280-P240-P370+P378A; P210-P241-P280-P308+P313-P405-P501A; P210-P410 + P403; P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US); Eyeshields, Faceshields, Gloves, half-mask respirator (US), multi-purpose combination respirator cartridge (US)
• RID/ADR: UN 1971 2.1

Product Information

• Purity: ≥99.0%; ≥99.995% (GC); ≥99.998%; 95%; 98%; 99% (metals basis); 99.0%; 99.9+%; 99.999% (metals basis); Ash 4% max
• Grade: analytical standard; electronic grade; puriss.
• Isotopic Purity: 99.9 atom % 12C
• Description: 13C-depleted
• Impurities: <2 ppm CO; <2 ppm CO2; <3 ppm Water (H2O); <5 ppm Ethane (C2H5); <5 ppm Nitrogen (N2); ≤0.0005% CnHm; ≤0.0015% ethane; CO2, trace; N2, trace; O2, trace; water, trace
• Shelf Life: (limited shelf life, expiry date on the label)
• Linear Formula: 12CH4
• Empirical Formula (Hill Notation): CH4

DETAILS

Sigma Aldrich - 295477

Features and Benefits
Methane is used as a carbon source for the chemical vapor deposition (CVD) of carbide and diamond thin films.
Packaging
56 L in steel cylinder
Recommended products
Brass control valve Z146943 or either of brass regulators Z146706 and Z146714 is recommended.

Sigma Aldrich - 490210

Packaging
This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.
Recommended products
The use of a brass regulator is recommended.

Sigma Aldrich - 463035

Features and Benefits
Methane is used as a carbon source for the chemical vapor deposition (CVD) of carbide and diamond thin films.
Packaging
24 L in ss cylinder
Recommended products
High-purity regulators Z527378 or Z527386 are recommended.

Sigma Aldrich - 02391

Features and Benefits
Methane is used as a carbon source for the chemical vapor deposition (CVD) of carbide and diamond thin films.
Other Notes
Sales restrictions may apply
Packaging
pressure tin size 1Lfilling pressure at 15°C: 11 bar; content (15°C, 1 bar): 11 l; Recommended valves see section ′Tools/Valves and Adapter for Cylinders′ in the annex of the Fluka-Riedel-Catalog or under www.sigmaaldrich.com/fluka/bulletin/fl_analytix_v5_n7.pdf

Sigma Aldrich - 02329

Features and Benefits
Methane is used as a carbon source for the chemical vapor deposition (CVD) of carbide and diamond thin films.

Toronto Research Chemicals - H948140

11α-Hydroxy Mexrenone is an intermediate used in the chemobiological synthesis of Eplerenone (E588775), a cardiovascular drug.

REFERENCES

• Boeren, S., et al.: Biotech. Bioeng., 29, 305 (1987)
• Anon., et al.: Drugs Future, 25, 516 (1987)
• McMahon, E., et al.: Curr. Opin Pharmacol., 1, 190 (1987)
• Extruded carbon with large pore volume and pore size distribution, suitable for decolorization, deodorisation and purification applications.
• High purity grade with high internal surface area, suitable for decolorization, purification and catalyst carrier applications.