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isobutane boiling point

Meryer (Shanghai) Chemical Technology Co., Ltd. TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III), TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III), 2-METHYLPROPANE, FUEL CYLINDER FOR SETAF LASH (1EA=1.3OZ CYLINDER), 2-METHYLPROPANE, PRESSURE TIN WITH 250 M L (NET ~140 G), Isobutane (in cylinder without valve) [To use this product charged in cylinder, a valve is required which is sold separately (Product Code:V0030)], Analytical Chromatography Product Catalog. The entropies of n-butane and isobutane with some heat capacity data for isobutane, In addition to the Thermodynamics Research Center Isobutane, also known as i-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH3)3. PHYSICAL CONSTANTS (Isobutane): Molecular Weight: 58.124. the ; Kennedy, R.M. But, these numbers won’t do you any good if you don’t know what refrigerant you are dealing … NIST subscription sites provide data under the This calc can be extremely useful in designing experimental processes or making safety assessments. [all data], Grosse, 1937 Dailey, B.P. There you have it folks. Thermodnamic Properties of Isobutane in the Critical Region, Chances are, if you're an avid camper, or at the very least, enjoy the outdoors, you've seen your fair share of 16.4 oz propane tanks. Vapor-Liquid Critical Properties of Elements and Compounds. ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein, log10(P) = A − (B / (T + C)) [all data], Foehr and Fenske, 1949 . Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. Normally stable, even under fire conditions. Soc., 1940, 62, 2059-2063. Notes. Molar Heat Capacity at Constant Volume for Isobutane at Temperatures from (114 to 345) K and at Pressures to 35 MPa «8224» «8225», numbers for the refrigerant you are working on are essential when it comes to really understanding what is going wrong with your system. [all data], Majer and Svoboda, 1985 on behalf of the United States of America. I’ll search for a refrigerant’s pressure chart and get various results all showing different pounds per square inch temperatures. One of the very first steps when it comes to diagnosing your home air conditioner, refrigerator, or even your vehicle’s air conditioner is understanding the temperature and the current pressure that your system is operating at. Chem., Abt. CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. Enthalpy of vaporization at standard conditions. The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. Vapor Pressure @ 70° F.: 30.7 psig. Having these facts along with the. errors or omissions in the Database. and Informatics, Microwave spectra (on physics lab web site), Computational Chemistry Comparison and Benchmark Database, NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data), NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data). Thesis, Penn. Data, 1983, 28, 224. Lagerlof, D., I’ll search for a refrigerant’s pressure chart and get various results all showing different pounds per square inch temperatures. [all data], Reid, 1972 Majer, V.; Svoboda, V., If you haven’t run into one of these systems yet then it’s only a matter of time. [all data], Lagerlof, 1918 Chem., 1957, 29, 320. The boiling point of isobutane at -11.75°C (10.85°F). Analyst (London), 1947, 72, 513-20. Uncertainty assigned by TRC = 0.15 K; measured while refluxing in glass colukmn, Cu-const. The purpose of the fee is to recover costs associated Rossini, F.D., But, these numbers won’t do you any good if you don’t know what refrigerant you are dealing with and what the refrigerant’s boiling point is at each pressure level. Data, 1983, 28, 354-362. [7], In the Chevron Phillips slurry process for making high-density polyethylene, isobutane is used as a diluent. It is easily ignited. Boiling point 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 … National Institute of Standards and DH - Eugene S. Domalski and Elizabeth D. Hearing Seperating butenes from butanes. 170, 249 pp., 1982. Thermophysical Properties of Propane from 85 to 700 K at Pressures to 70 MPa, NBS Monogr. Timmermans, J., shall not be liable for any damage that may result from On top of this post we are also working on a comprehensive refrigerant pressure/temperature listing. Chem. J. Org. Data, 1996, 41, 365-372. binary mixtures and chemical reactions, SRSD 2 – Web Thermo Tables (WTT), "lite" edition, SRSD 3 – Web Thermo Tables (WTT), professional edition, SRD 156 – Clathrate Hydrate Physical Property Database. Data compiled as indicated in comments: Soc., 1932, 54, 2340. Your institution may already be a subscriber. Having these facts along with the saturation point, the subcool, and the superheat  numbers for the refrigerant you are working on are essential when it comes to really understanding what is going wrong with your system. (USCG, 1999). Benoliel, R.W., ; Haynes, W.M., . Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 Vapor Density (Relative to Air): data unavailable. Then enter the temperature or pressure you are interested in and the calc will give the estimated pressure or temperature that boiling will take place. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. If you haven’t run into one of these systems yet then it’s only a matter of time. Younglove, B.A. Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. J. Prakt. Data compiled as indicated in comments: Copyright for NIST Standard Reference Data is governed by Eng. As a refrigerant, isobutane poses an explosion risk in addition to the hazards associated with non-flammable CFC refrigerants. [all data], Majer and Svoboda, 1985 [all data], Huckel, Kraemer, et al., 1935 Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. Eng. [all data], Kohlraush and Koppl, 1934 Branched Alkanes and Cycloalkanes, All rights reserved. J. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. 61 mg L −1 (at 20 °C (68 °F)) log ... especially isobutane, can be used as refrigerants and have largely replaced the ozone-layer-depleting halomethanes, for instance in household refrigerators and freezers. TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director Das, T.R. Hooper, J.H.D., Huston, R.C. No evidence of abortion or birth defects was observed in laboratory animals exposed to very high isobutane vapor levels before and during pregnancy. The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of isobutane, ; Scott, G.S., (File Format: Jpg, Gif, Png, PDF,Zip,Txt,doc or xls Max Size: 3MB), The username will be used as the login user name and retrieve the password, Copyright 2017 © ChemicalBook. LPG (propane) vapour pressure is about 4x that of butane, at a given pressure. A linear molecule can have more Van Der Waal forces than that of a branched molecule. Phys., 1937, 5, 359-363. Except where otherwise noted, data are given for materials in their, CS1 maint: multiple names: authors list (, "CDC - NIOSH Pocket Guide to Chemical Hazards - Isobutane", Institute for Occupational Safety and Health, National Institute for Occupational Safety and Health, 10.1002/0471238961.0112112508011313.a01.pub2, Ullmann's Encyclopedia of Industrial Chemistry, "Frequently Asked Questions About Lightweight Canister Stoves and Fuels", "European Commission on retrofit refrigerants for stationary applications", "Compendium of hydrocarbon-refrigerant policy statements, October 2006", "MACS bulletin: hydrocarbon refrigerant usage in vehicles", "Society of Automotive Engineers hydrocarbon refrigerant bulletin", "Saskatchewan Labour bulletin on hydrocarbon refrigerants in vehicles", VASA on refrigerant legality & advisability, "Queensland (Australia) government warning on hydrocarbon refrigerants", "New South Wales (Australia) Parliamentary record, 16 October 1997", "New South Wales (Australia) Parliamentary record, 29 June 2000", http://www.acdlabs.com/iupac/nomenclature/93/r93_679.htm, https://en.wikipedia.org/w/index.php?title=Isobutane&oldid=976587542, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, 3.1 atm (310 kPa) (at 21 °C (294 K; 70 °F)), This page was last edited on 3 September 2020, at 20:17. J. Org. Isobutane is used as a refrigerant. Boublik, T.; Fried, V.; Hala, E., AC - William E. Acree, Jr., James S. Chickos

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