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  • Graphene, 99%

    • Graphene, 99%

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    Catalog Number
    ACM1034343980-2
    CAS Number
    1034343-98-0
    Product Name
    Graphene, 99%
    Structure
    Category
    Carbon Nanomaterials
    Description
    Methane is a colorless odorless gas. It is also known as marsh gas or methyl hydride. It is easily ignited. The vapors are lighter than air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used in making other chemicals and as a constituent of the fuel, natural gas.;Methane is a colorless odorless gas. It is also known as marsh gas or methyl hydride. It is easily ignited. The vapors are lighter than air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used in making other chemicals and as a constituent of the fuel, natural gas.;Methane, refrigerated liquid (cryogenic liquid) is a colorless odorless liquid. Flammable. Water insoluble.;Natural gas, refrigerated liquid (cryogenic liquid) appears as a flammable liquefied gaseous mixture of straight chain hydrocarbons, predominately methane.;Natural gas, [compressed] appears as a flammable gaseous mixture of straight chain hydrocarbons, predominately compressed methane.;GasVapor; Liquid;Liquid;COLOURLESS ODOURLESS COMPRESSED OR LIQUEFIED GAS.
    IUPAC Name
    methane
    Molecular Weight
    16.043g/mol
    Molecular Formula
    CH4;CH4;CH4
    Canonical SMILES
    C
    InChI
    InChI=1S/CH4/h1H4
    InChI Key
    VNWKTOKETHGBQD-UHFFFAOYSA-N
    Boiling Point
    -258 °F at 760 mm Hg (USCG, 1999);-258.7 °F at 760 mm Hg (NTP, 1992);-161.5 °C;-161.50 °C;-161 °C
    Melting Point
    -296 °F (USCG, 1999);-296.5 °F (NTP, 1992);-182.4 °C;-182.566 °C;-182.4°C;-183 °C
    Flash Point
    -306 °F (NTP, 1992);-188 °C (-306 °F) - closed cup;Flammable gas
    Density
    0.415 to 0.45 at -259.6 °F (USCG, 1999);0.422 at -256 °F (USCG, 1999);0.554 at 0 °C/4 °C (air = 1 ) or 0.7168 g/liter
    Solubility
    3.5 mL/100 mL at 63° F (NTP, 1992);Insoluble;0.00 M;In water, 22 mg/L at 25 °C;Slightly soluble in acetone; soluble in ethanol, ethyl ether, benzene, toluene, methanol;0.91 mL in 1 g ether at 20 °C; 0.60 mL in 1 g ethyl alcohol at 20 °C;0.022 mg/mL at 25 °C;Solubility in water, ml/100ml at 20 °C: 3.3
    Color/Form
    Colorless gas
    Complexity
    0
    Covalently-Bonded Unit Count
    1
    EC Number
    200-812-7;232-343-9
    Exact Mass
    16.0313g/mol
    Formal Charge
    0
    Heat of Vaporization
    8.19 kJ/mol
    Heavy Atom Count
    1
    ICSC Number
    0291
    Log P
    log Kow = 1.09;1.09;1.09
    Monoisotopic Mass
    16.0313g/mol
    Odor
    Odorless;Weak odor
    Other Experimental
    VP: 1 Pa at -220 °C (solid); -10 Pa at 214.2 °C (solid); 100 Pa at -206.8 °C (solid); 1 kPa at -197 °C (solid); 10 kPa at -183.6 °C (solid); 100 kPa at -161.7 °C;Burns with a pale, faintly luminous flame; air containing more than 14% methane burns without noise;Practically inert toward sulfuric acid, nitric acid, alkalies, and salts but reacts with chlorine and bromine in light (explosively in direct sunlight);Liquid water interfacial tension: 50 dynes/cm = 0.050 N/m at -161 °C; Ratio of specific heats of vapor: 1.306;Enthalpy of fusion: 0.94 kJ/mol;Dipole moment: 0;Enthalpy of formation: -74.6 kJ/mol at 298.15 K;Henry's Law constant = 0.658 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant: 6.86X10-15 cu cm/molecule sec at 25 °C
    Rotatable Bond Count
    0
    RTECS Number
    PA1490000
    UNII
    2P3VWU3H10;OP0UW79H66
    UN Number
    1972;1971;1972;1972;1971;1971;1971;1971
    Vapor Density
    0.55 (NTP, 1992) (Relative to Air);0.554 at 0 °C (Air = 1);Relative vapor density (air = 1): 0.6
    Vapor Pressure
    258574 mm Hg at 100 °F ; 760 mm Hg at -258.7° F (NTP, 1992);4.66e+05 mmHg;4.66X10+5 mm Hg at 25 °C
    Viscosity
    34.8 uP at -181.6 °C; 76.0 uP at -78.5 °C; 102.6 uP at 0 °C; 108.7 uP at 20 °C; 133.1 uP at 100.0 °C; 160.5 uP at 200.5 °C; 181.3 uP at 284 °C; 202.6 uP at 380 °C; 226.4 uP at 499 °C
    XLogP3
    0.6
    MSDS
    Download MSDS
    COA
    Download COA
    Spec Sheet
    Download Spec Sheet
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