Ethylene is widely used in the chemical industry, and its worldwide production (over 150 million tonnes in 2016) exceeds that of any other organic compound. A thermodynamic study to evidence the -dichloroalkane/ block copolymer mixed aggregates formation: Effect of the copolymer architecture. alone. For a heat transfer system with ethylene glycol the circulated volume must be increased compared to a system only with water. 189 experimental data collected from published literature was used for the model development. During the stabilisation periods in the melting region negative temperature drifts, related to endothermic effects caused by melting, were observed below 325 K. However, in the temperature range from 325 K up to the end melting temperature, 360 K, positive drifts were measured, reflecting exothermic effects which are attributed to recrystallisation phenomena. A Thermodynamic and SANS Study. Isobaric, C P, and isochoric, C V, specific heat of ethylene at atmospheric pressure and varying temperature, °C and °F: Specific heat of Ethylene Gas - C2H4 - at temperatures ranging 175 - 900 K: Ethylene Gas - C 2 H 4. Simon, T.H. These metrics are regularly updated to reflect usage leading up to the last few days. It and its toxic byproducts first affect the central nervous system, then the heart, and finally the kidneys. The equation derived for the heat capacity of transfer is more complex than that for the enthalpy because it contains five additional terms due to the shift of the equilibria induced by the temperature change. The crystallinity of the polymer was calculated (within the two-phase model) as a function of temperature using two sets of reference data (one for linear and branched polyethylenes (BPEs), and the other for strictly linear polyethylene (LPE)) for completely crystalline and for completely amorphous material. 0000331244 00000 n Strykowski, K.K. Solubilization of an Organic Solute in Aqueous Solutions of Unimeric Block Copolymers and Their Mixtures with Monomeric Surfactant: Volume, Surface Tension, Differential Scanning Calorimetry, Viscosity, and Fluorescence Spectroscopy Studies. la048943nsi20040428_061430.pdf (383.11 kb), http://pubs.acs.org/page/copyright/permissions.html, https://doi.org/10.1016/j.ijheatmasstransfer.2010.05.004, https://doi.org/10.1016/j.jcis.2006.03.076. �%3��m�B�mǲ? Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The minimizing procedure provided the heat capacity changes for the formation of the surfactant−copolymer aggregation complexes and the copolymer−micelle mixed aggregates. Outlier This icon means CS1 maint: BOT: original-url status unknown (, National Institute for Occupational Safety and Health, Ullmann's Encyclopedia of Industrial Chemistry, "Coal to MEG, Changing the Rules of the Game", "China's coal-based chemicals are a trade-off", "Polyethylene bio-degradation by caterpillars of the wax moth Galleria mellonella", "Stubborn plastic may have finally met its match: the hungry wax worm", "Synthèse du glycol avec l'oxyde d'éthylène et l'eau", "Glycol til industri og erhverv | Læs mere om glycol her", "Synthesis of pentacoordinate silicon complexes from SiO, "Antifreeze and Engine Coolant Being Bittered Nationwide", "Statement of the Science Report for Ethylene Glycol", "Interstellar Antifreeze: Ethylene Glycol", ATSDR - Case Studies in Environmental Medicine: Ethylene Glycol and Propylene Glycol Toxicity, CDC - NIOSH Pocket Guide to Chemical Hazards, Antifreeze ratio for Ethylene Glycol and Propylene Glycol, https://en.wikipedia.org/w/index.php?title=Ethylene_glycol&oldid=985356545, CS1 maint: BOT: original-url status unknown, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with Danish-language sources (da), Creative Commons Attribution-ShareAlike License, This page was last edited on 25 October 2020, at 13:55. , Australia, the UK, and seventeen US states (as of 2012) require the addition of a bitter flavoring (denatonium benzoate) to antifreeze. The bayesian algorithm was used to obtain the optimum SVR hyperparameters.  While prolonged low doses of ethylene glycol show no toxicity, at near lethal doses (≥ 1000 mg/kg per day) ethylene glycol acts as a teratogen. On heating, the mass fraction crystallinity decreased from 0.30 to 0 in the temperature range from 220 to 360 K, confirming earlier differential scanning calorimetry (DSC) heat capacity measurements. Data compiled as indicated in comments: ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein DRB - Donald R. Burgess, Jr. GT- Glushko Thermocenter, Russian Academy of Sciences, Moscow Find more compounds similar to Ethylene oxide. In December 2012, US antifreeze manufacturers agreed voluntarily to add a bitter flavoring to all antifreeze that is sold in the consumer market of the US. Sterilizing gas ethylene oxide 100%; T-Gas; UN 1040 «alpha»,«beta»-Oxidoethane; Sources. 0000007919 00000 n Alade IO, Abd Rahman MA, Saleh TA (2019) Predicting the specific heat capacity of alumina/ethylene glycol nanofluids using support vector regression model optimized with Bayesian algorithm. , Ethylene glycol is moderately toxic, with an oral LDLo = 786 mg/kg for humans. redistribute this material, requesters must process their own requests via the RightsLink permission 0000003147 00000 n R. De Lisi,, M. Gradzielski,, G. Lazzara,, S. Milioto,, N. Muratore, and. from the ACS website, either in whole or in part, in either machine-readable form or any other form ��XV}����M�6�4��X�Y�������������}�;���Q��T��YmѡS���� Bayesian algorithm to predict the speciﬁc heat capacity of metallic oxides/ethylene glycol-based nanoﬂuids. You have to login with your ACS ID befor you can login with your Mendeley account. E-mail: [email protected] unipa.it. 0000007568 00000 n Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles. For permission to reproduce, republish and 0000350731 00000 n Much of this production goes toward polyethylene, a widely used plastic containing polymer chains of ethylene units in various chain lengths.