## antoine coefficients for benzene

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How to use Antoine Equation coefficients. , Follow us on Twitter Fluid Velocity in pipes pressure of the pure substances listed, in (friction factor). Faraday Soc., 1967, 63, 2149-2157, https://doi.org/10.1039/tf9676302149 T = temperature (K). © 2018 by the U.S. Secretary of Commerce To overcome the limits of the Antoine equation some simple extension by additional terms are used: The additional parameters increase the flexibility of the equation and allow the description of the entire vapor pressure curve. All rights reserved. 2. Go To: Top, Antoine Equation Parameters, Notes, Eon, Pommier, et al., 1971 The August equation describes a linear relation between the logarithm of the pressure and the reciprocal temperature. where p is the vapor pressure, T is temperature and A, B and C are component-specific constants. Toggle semilog (log Y) display if possible. . m = shall not be liable for any damage that may result from data table. calculation of saturation pressure - log base 10. H The purpose of the fee is to recover costs associated a P Access our Privacy Policy in the Table A.2 Antoine Equation Constants Substance Formula A B C Acetaldehyde C 2H 4O 7.05648 1070.60 236 Acetic acid C 2H 4O 2 7.29964 1479.02 216.81 Acetone C 3H 6O 7.02447 1161 224 Acetylene C 2H 2 7.09990 711.00 253.38 Ammonia NH 3 7.36048 926.13 240.17 Argon Ar 6.61562 304.2283 267.31 Benzene C 6H 6 6.90565 1211.033 220.79 n-Butane C 4H 10 6.80897 935.86 238.73 n-Butanol C 4H The Antoine equation for calculating vapor pressure is given in Equation B.3, with the relevant constants in Table B.4. 5. J. Chem. The Antoine equation can also be transformed in a temperature-explicit form with simple algebraic manipulations: Usually, the Antoine equation cannot be used to describe the entire saturated vapour pressure curve from the triple point to the critical point, because it is not flexible enough. Table of coefficients of Antoine Equation for pure … Popular document.write(document.title); Commonly used are simple extensions of the Antoine equation (see below) and the equations of DIPPR or Wagner.[2][3]. The interactive plot requires a browser with JavaScript and Churchill Correlation A low-pressure parameter set is used to describe the vapour pressure curve up to the normal boiling point and the second set of parameters is used for the range from the normal boiling point to the critical point. Zh. pressure of the pure substances listed, 1. Therefore, multiple parameter sets for a single component are commonly used. intended to imply recommendation or endorsement by the National }, The parameters for °C and mmHg for ethanol, The first example calculation with TB = 351.47 K becomes. 760 log mmHg, from the temperature in degree celsius. J. Res. Power Calculation, 3. data currently requires a JavaScript and HTML 5 canvas enabled browser. 101325 (U.S.), 1945, 35, 3, 219-244, https://doi.org/10.6028/jres.035.009 Standard Reference Data Act. For switching from degrees Celsius to kelvin it is sufficient to subtract 273.15 from the C parameter. It is however easy to convert the parameters to different pressure and temperature units. Power Calculation Select a region with no data or The classification in the table is done by . from 3rd party companies. Vapor Pressures and Boiling Points of Some Paraffin, Alkylcyclopentane, Alkylcyclohexane, and Alkylbenzene Hydrocarbons, 2.124903. Go To: Top, Antoine Equation Parameters, References Data from NIST Standard Reference Database 69: NIST Chemistry WebBook The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment.

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