J. Chem. been selected on the basis of sound scientific judgment. Solid-liquid phase equilibria in water + ethylene glycol, Croll, I.M. Chem., 1967, 71, 3259. By 2020 atmospheric methane had reached 1873.5 ppb, some two to three times higher than preindustrial levels, which hovered at 600–700 ppb. Copyright © 2020 Multiply Media, LLC. Get exclusive access to content from our 1768 First Edition with your subscription. Boiling Point (o C) State at 25 o C: methane: CH 4-183-164: gas: ethane: C 2 H 6-183-89: … Z. Phys. C. R. Hebd. B, 1937, 36, 291. Eng. Data Program, but require an annual fee to access. Boiling point: -161°C Melting point: -183°C Solubility in water, ml/100ml at 20°C: 3.3 Relative vapour density (air = 1): 0.6 Flash point: Flammable gasAuto-ignition temperature: 537°C Explosive limits, vol% in air: 5-15Octanol/water partition coefficient as log Pow: 1.09. Methane also is the chief constituent of natural gas, which contains from 50 to 90 percent methane (depending on the source), and occurs as a component of firedamp (flammable gas) along coal seams. Material Safety Data Sheet. Eng. [all data], Lovejoy, 1963 Ind. Most methane produced naturally is offset by its uptake into natural sinks. Personal protection: self-contained breathing apparatus. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? Methane is a tetrahedral molecule with four equivalent C–H bonds. Methane reacts with steam at high temperatures to yield carbon monoxide and hydrogen; the latter is used in the manufacture of ammonia for fertilizers and explosives. Fluorocarbon Solutions at Low Termperatures IV. Somewhere between 1776 and 1778, methane was invented by Alessandro Volta while he was pursuing his education at Lake Maggiore. [all data], Hunter, 1906 Vapor-Liquid Critical Properties of Elements and Compounds. J. Phys. Activities such as the extraction and processing of natural gas and the destructive distillation of bituminous coal in the manufacture of coal gas and coke-oven gas result in the release of significant amounts of methane into the atmosphere. Copyright for NIST Standard Reference Data is governed by 6, 1976. It is also known by the name of marsh gas. The Measurement of Low Vapor Pressures by Means of a Mass Spectrometer., [all data], Streng, 1971 [all data], Hestermans and White, 1961 Eucken, A.; Karwat, E., Calculation of thermodynamic state variables of methane in saturation state, boiling curve. Trans. . Use non-sparking handtools. [all data], Ott, Goates, et al., 1972 The incomplete combustion of methane yields carbon black, which is widely used as a reinforcing agent in rubber used for automobile tires. Prydz, R.; Goodwin, R.D., Use ventilation. Effects of long-term or repeated exposure. Database and to verify that the data contained therein have Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) Extremely flammable. [all data], Gilmour, Zwicker, et al., 1967 K. See also. [all data], Regnier, 1972 [all data], Frank and Clusius, 1939 Z. Phys. P = vapor pressure (bar) Fireproof. Cryog. [all data], Ambrose, Counsell, et al., 1970 II. © 2018 by the U.S. Secretary of Commerce Who is the longest reigning WWE Champion of all time? This gas is a flammable gas. Chem., 1906, 10, 330-60. Tetrahedral geometry of methane: (A) stick-and-ball model and (B) diagram showing bond angles and distances. [all data], Pavese, Cagna, et al., 1976 Follow the links above to find out more about the data ( Log Out / Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) How do you put grass into a personification? [all data], Ambrose and Tsonopoulos, 1995 Fresh air, rest. Data, 1971, 16, 357. uses its best efforts to deliver a high quality copy of the Data compiled as indicated in comments: Its chemical formula is CH4. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Data compiled as indicated in comments: SRD 103b – Thermo Data Engine (TDE) for pure compounds, Fig: methane structure Fig: methane, CH4 + O2 `->` HCHO + H2O `->` CO + H2 + H2O. Density of the liquid at boiling point: 0.42 kg/l. [all data], Eucken and Karwat, 1924 Z. Phys. Methane (CH 4) is an alkane compound and have a low boiling point.Here, we discuss why CH 4 has a lower boiling point and reasons to it. Lovejoy, D.R., Figure 1: Molecular Structure of Methane The geometry of the molecule is tetrahedral. Why don't libraries smell like bookstores? Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 Solid methane exists in several modifications. errors or omissions in the Database.
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