Note. in order to maximize the amount of propene and other light products. 3 0 obj Transportation A high severity FCC unit is usually fed with gas oils (paraffins) and residues, and produces about 20–25 m% propene on feedstock together with greater volumes of motor gasoline and distillate byproducts. (EPA, 1998), This material is moderately toxic by inhalation and ingestion. these chemicals are present. Anonymous, X., B, 1950, 28, 608-22. Propylene oxide; (Methyl ethylene oxide) (75-56-9). [14] In the Phillips Triolefin or Olefin conversion technology propylene is interconverted with ethylene and 2-butenes. Timmermans, J.; Hennaut-Roland, M., L’introduction d’un groupement méthyle conduit en théorie à la formation de deux adduits puisque la double liaison est dissymétrique. Ethylène). La base de la règle de Markovnikov est la formation, lors de la protonation, du carbocation le plus stable qui, en général, est le plus substitué du fait des effets inductifs, de la mésomérie voire de l’hyperconjugaison qui contribuent à sa stabilisation. Le propylène glycol (PG) ou propane-1,2-diol, appelé aussi 1,2-dihydroxypropane ou méthyl glycol, est un diol de formule chimique CH 3 –CHOH–CH 2 OH ayant de nombreux usages industriels ou agropharmaceutiques, à faible dose comme additif alimentaire et depuis peu dans les cigarettes électroniques (liquide à vapoter).. testing laboratories using ASTM F739, EN369, EN 374-3, EN ISO 6529 Prolonged contact with skin may result in delayed burns. Density 6.9 lb./gal. [all data], Anonymous, 1957 determine the level of toxicity and the proper personal protective Propene is usually stored as liquid under pressure, although it is also possible to store it safely as gas at ambient temperature in approved containers.[21]. [6] Propene can be separated by fractional distillation from hydrocarbon mixtures obtained from cracking and other refining processes; refinery-grade propene is about 50 to 70%. Phys. reported in minutes. Exposure may cause mild depression of the central nervous system and eye, nasal, and lung irritation. listed below. Unless otherwise stated, permeation was measured for single chemicals. H [15] Propene is also an intermediate in the one-step propane selective oxidation to acrylic acid. [all data], Belohoubek, 1879 [all data], Anonymous, 1968 [7], Propene has low acute toxicity from inhalation. More info about absorbents, including situations to watch out for... National Oceanic and Atmospheric Administration. [12], Propene is the second most important starting product in the petrochemical industry after ethylene. Inhalation of the gas can cause anesthetic effects and at very high concentrations, unconsciousness. Mustard, Tabun and VX Nerve Agent) have been tested at 22°C and 50% The fabric permeation data was generated for DuPont by independent J. Chem. 45, Tech. Consult an expert! [all data], Niederist, 1879 If contaminated, may polymerize with evolution of heat and possible rupture of container. The technology is founded on an olefin metathesis reaction discovered at Phillips Petroleum Company. Prolonged contact with skin may result in delayed burns. Formula: C3H6 / CH2CHCH3 Enfin, les éthers de propylène glycol sont en passe de remplacer comme solvants l’éthylène glycol, du fait de leur moindre toxicité, le cumène, issu de la réaction d’alkylation du benzène par le propylène, qui est la matière de base principale pour la fabrication du phénol et de l’acétone. Schierholtz, O.J. Propene acts as a central nervous system depressant via allosteric agonism of the GABAA receptor. CAUTION: This information is based upon technical data that Its vapor pressure at normal room temperature is negligible, so propylene glycol does not evaporate to any significant degree. Zander, A., Polypropylene hasn't a boiling point. Office of Response and Restoration, Pour une production de 100 kg d’éthylène, on produit 1,7 kg de propylène si la charge est de l’éthane, 35 kg si la charge est du gaz de pétrole liquéfié (GPL), 46 kg si la charge est du naphta et 52 kg si la charge est du gazole. © 2018 by the U.S. Secretary of Commerce K; from "Flawitzky"; Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) Normalized breakthrough times Intentional inhalation may also result in death via asphyxiation (sudden inhalant death). Pet. However, NIST makes no warranties to that effect, and NIST ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. relative humidity per military standard MIL-STD-282. [22] On September 30, 2013, NASA also announced that the Cassini orbiter spacecraft, part of the Cassini-Huygens mission, had discovered small amounts of naturally occurring propene in the atmosphere of Titan using spectroscopy. Data compilation copyright Propene undergoes combustion reactions in a similar fashion to other alkenes. En fonction de la charge qui est utilisée, la proportion de propylène produit varie. including, without limitation, no warranties of merchantability or fitness <> , Am. Chem., 1879, 196, 349. UN Hazard Class: 2.1, Prepared by an international group of experts on behalf of ILO and WHO, Data Program, but require an annual fee to access. from the permeation behavior of the individual chemicals. A température et pression ambiantes, le propylène est un gaz dont le point de liquéfaction est -47,6° C, ce qui explique son emploi pour le chauffage à la place du butane (-0,5° C) dans les pays froids. On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas. l’acrylonitrile, résultat d’une oxydation catalytique en présence d’ammoniac, employé pour la préparation de fibres acryliques, d’élastomères comme le caoutchouc nitrile et de polymères comme les résines ABS (Acrylonitrile-Butadiène-Styrène). Artificial respiration may be needed. Closed system, ventilation, explosion-proof electrical equipment and lighting. 4 0 obj Propylene. Boiling point: -48°C Melting point: -185°C Relative density (water = 1): 0.5 Solubility in water: poorVapour pressure, kPa at 25°C: 1158 Relative vapour density (air = 1): 1.5 Flash point: Flammable gasAuto-ignition temperature: 460°C Explosive limits, vol% in air: 2.4-10.3Octanol/water partition coefficient as log Pow: 1.77. Les autres réactions incluent l’oxydation, l’halogénation et l’hydrohalogénation, l’alkylation, l’hydratation, l’hydroformylation et l’oligomérisation qui permettent d’accéder à différents grands intermédiaires : d’où la pensée du jour : equipment needed. Personal protection: chemical protection suit including self-contained breathing apparatus. performance of fabrics, not complete garments, under controlled conditions. Chemical warfare agents (Lewisite, Sarin, Soman, Sulfur Monoxyde de carbone), la réaction de métathèse croisée éthylène-butène et la conversion catalytique du méthanol (procédé MTO Total Petrochemicals-UOP). 27°C unless otherwise stated. The feedstock is naphtha or propane, especially in the Middle East, where there is an abundance of propane from oil/gas operations. Ethylène). Molecular Properties. Firefighting should be done from a safe distance or from a protected location. Ces deux voies fournissaient en 2006, 30 % de la production européenne de propylène. %PDF-1.5 Chemical dangers [13] Polypropylene end uses include films, fibers, containers, packaging, and caps and closures. NEVER direct water jet on liquid. [all data], Mellan, 1962 that the garment selected is suitable for the intended use. Effects of long-term or repeated exposure, Propylene (IARC Summary & Evaluation, Volume 60, 1994). additional knowledge and experience are gained. Propane/Propylene Revision Date 05/15/2015 Version 1.3 Print Date 05/26/2015 110000001326 Page 4 of 9 SAFETY DATA SHEET SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance gaseous ; liquid under pressure ; Colour colourless Form gaseous, liquid under pressure Odour odourless Odour Threshold no data available Flash point All chemicals have Physical dangers Propene is a product of combustion from forest fires, cigarette smoke, and motor vehicle and aircraft exhaust. Observed concentrations have been in the range of 0.1-4.8 parts per billion (ppb) in rural air, 4-10.5 ppb in urban air, and 7-260 ppb in industrial air samples.


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