VAPOR-LIQUID EQUILIBRIUM DATA COLLECTION Chemistry Data Series
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
The Separation of Three Azeotropes by Extractive Distillation by An-I Yeh A
The separation of three azeotropes by extractive distillation by An-I Yeh A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science in Chemical Engineering Montana State University © Copyright by An-I Yeh (1983) Abstract: Several different kinds of extractive distillation agents were investigated to affect the separation of three binary liquid mixtures, isopropyl ether - acetone, methyl acetate - methanol, and isopropyl ether - methyl ethyl ketone. Because of the small size of the extractive distillation column, relative volatilities were assumed constant and the Fenske equation was used to calculate the relative volatilities and the number of minimum theoretical plates. Dimethyl sulfoxide was found to be a good extractive distillation agent. Extractive distillation when employing a proper agent not only negated the azeotropes of the above mixtures, but also improved the efficiency of separation. This process could reverse the relative volatility of isopropyl ether and acetone. This reversion was also found in the system of methyl acetate and methanol when nitrobenzene was the agent. However, normal distillation curves were obtained for the system of isopropyl ether and methyl ethyl ketone undergoing extractive distillation. In the system of methyl acetate and methanol, the relative volatility decreased as the agents' carbon number increased when glycols were used as the agents. In addition, the oxygen number and the locations of hydroxyl groups in the glycols used were believed to affect the values of relative volatility. An appreciable amount of agent must be maintained in the column to affect separation. When dimethyl sulfoxide was an agent for the three systems studied, the relative volatility increased as the addition rate increased. -
Pdf 462.69 K
Journal of Oil, Gas and Petrochemical Technology Vol. 5, No. 1 , pp. 63 - 75 6 3 The Investigation of Purity Improvement for the Production of Methyl Propionate in Different Types of Batch Distillation Systems Dhia Y. Aqar * 1 , Hassan H. Al Alak 2 , N. Rahmanian 3 , I.M. Mujtaba 3 1 Ministry of Oil, South Refineries Company, Basra, Iraq 2 Department of Materials Engineering, Faculty of Engineering, University of Kufa, Najaf, Iraq 3 Faculty of Engineering and Informatics, University of Bradford, Bradford, UK ARTICLE INFO ABSTRACT Received: January 06, 2018 Methyl propionate, also known as methyl propanoate, Accepted: September 08, 2018 is a clear colourless liquid with a characteristic odour (fruity smel l and taste). In this study , the formation of methyl propionate through the esterification o Keywords : propionic acid and methanol was inves tigated in the Methyl propionate reactive distillation system using a conventional (CBD), CBD single feed (SF - SBD), and double feed semi - batch SF - SBD distillatio n (DF - SBD) columns for the first time . The Double feed semi - batch distillation performances measure o f these distillation systems (DF - SBD) were evaluated in terms of min imum batch time for a given separation task. The optimization results clearly * Corresponding author: show ed that the DF - SBD system is a more attractive E - mail: : [email protected] operation in terms of reaction conversion, and maximum achievable purity as compared to the SF SBD, and CBD processes. 64 Dhia Y. Aqar et al. 1. Introduction Methyl propionate is a very important component which has useful applications in a variety of areas in the chemical industry such as solvents for cellulose nitrate, lacquers, plasticizers, chemical intermediates, fragrances, flavors, a raw material in organic synthesis for the production of varnishes, paints, and other chemical compound s such as methyl methacrylate [1] . -
Experimental and Modeling Study of the Thermal Decomposition of Methyl Decanoate Olivier Herbinet, Pierre Alexandre Glaude, Valérie Warth, Frédérique Battin-Leclerc
Experimental and modeling study of the thermal decomposition of methyl decanoate Olivier Herbinet, Pierre Alexandre Glaude, Valérie Warth, Frédérique Battin-Leclerc To cite this version: Olivier Herbinet, Pierre Alexandre Glaude, Valérie Warth, Frédérique Battin-Leclerc. Experimental and modeling study of the thermal decomposition of methyl decanoate. Combustion and Flame, Elsevier, 2011, 158 (7), pp.1288-1300. 10.1016/j.combustflame.2010.11.009. hal-00724939 HAL Id: hal-00724939 https://hal.archives-ouvertes.fr/hal-00724939 Submitted on 23 Aug 2012 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Experimental and modeling study of the thermal decomposition of methyl decanoate Olivier Herbineta,*, Pierre-Alexandre Glaudea, Valérie Wartha and Frédérique Battin-Leclerca a Laboratoire Réactions et Génie des Procédés, Nancy Université, CNRS UPR 3349, BP 20451, 1 rue Grandville, 54001 Nancy, France Abstract The experimental study of the thermal decomposition of methyl decanoate was performed in a jet-stirred reactor at temperatures ranging from 773 to 1123 K, at residence times between 1 and 4 s, at a pressure of 800 Torr (106.6 kPa) and at high dilution in helium (fuel inlet mole fraction of 0.0218). -
Methyl Formate
SIGMA-ALDRICH sigma-aldrich.com Material Safety Data Sheet Version 5.0 Revision Date 09/17/2012 Print Date 03/13/2014 1. PRODUCT AND COMPANY IDENTIFICATION Product name : Methyl formate Product Number : 291056 Brand : Sigma-Aldrich Supplier : Sigma-Aldrich 3050 Spruce Street SAINT LOUIS MO 63103 USA Telephone : +1 800-325-5832 Fax : +1 800-325-5052 Emergency Phone # (For : (314) 776-6555 both supplier and manufacturer) Preparation Information : Sigma-Aldrich Corporation Product Safety - Americas Region 1-800-521-8956 2. HAZARDS IDENTIFICATION Emergency Overview OSHA Hazards Flammable liquid, Target Organ Effect, Harmful by ingestion., Irritant Target Organs Eyes, Kidney GHS Classification Flammable liquids (Category 1) Acute toxicity, Oral (Category 4) Acute toxicity, Inhalation (Category 4) Eye irritation (Category 2A) Specific target organ toxicity - single exposure (Category 3) GHS Label elements, including precautionary statements Pictogram Signal word Danger Hazard statement(s) H224 Extremely flammable liquid and vapour. H302 + H332 Harmful if swallowed or if inhaled H319 Causes serious eye irritation. H335 May cause respiratory irritation. Precautionary statement(s) P210 Keep away from heat/sparks/open flames/hot surfaces. - No smoking. P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. HMIS Classification Health hazard: 2 Sigma-Aldrich - 291056 Page 1 of 7 Chronic Health Hazard: * Flammability: 4 Physical hazards: 0 NFPA Rating Health hazard: 2 Fire: 4 Reactivity Hazard: 0 Potential Health Effects Inhalation May be harmful if inhaled. Causes respiratory tract irritation. Skin Harmful if absorbed through skin. -
Food and Drug Administration, HHS § 172.515
Food and Drug Administration, HHS § 172.515 Common name Scientific name Limitations Tolu ................................................................ Myroxylon balsamum (L.) Harms. Turpentine ...................................................... Pinus palustris Mill. and other Pinus spp. which yield terpene oils exclusively. Valerian rhizome and roots ............................ Valeriana officinalis L. Veronica ......................................................... Veronica officinalis L .................................................. Do. Vervain, European ......................................... Verbena officinalis L ................................................... Do. Vetiver ............................................................ Vetiveria zizanioides Stapf ......................................... Do. Violet, Swiss ................................................... Viola calcarata L. Walnut husks (hulls), leaves, and green nuts Juglans nigra L. or J. regia L. Woodruff, sweet ............................................. Asperula odorata L ..................................................... In alcoholic beverages only Yarrow ............................................................ Achillea millefolium L .................................................. In beverages only; fin- ished beverage thujone free1 Yerba santa .................................................... Eriodictyon californicum (Hook, et Arn.) Torr. Yucca, Joshua-tree ........................................ Yucca brevifolia Engelm. Yucca, -
Opinion on the SCCNFP on Methyl Acetate
SCCNFP/0694/03, final OPINION OF THE SCIENTIFIC COMMITTEE ON COSMETIC PRODUCTS AND NON-FOOD PRODUCTS INTENDED FOR CONSUMERS CONCERNING METHYL ACETATE adopted by the SCCNFP during the 24th plenary meeting of 24-25 June 2003 SCCNFP/0694/03, final Evaluation and opinion on : methyl acetate _____________________________________________________________________________________________ 1. Terms of Reference 1.1 Context of the question The Danish EPA has received a request from a poison information department in a hospital regarding the regulation of methyl acetate in cosmetics. A child had played with a nail polish remover containing 50 w/w % methyl acetate and there was suspicion that it had ingested some of the product. Methyl acetate is very quickly hydrolysed to acetic acid and methanol both whether inhaled or ingested. It is also well known that humans are more sensitive to methanol poisoning than rodents. In order to evaluate the acute toxicity of methyl acetate in humans, it was found rea- sonable to consider the acute toxicity of methanol as reported by clinical cases of poisoning. According to the IPCS report on methanol (Environmental Health Criteria 196, 1997), the lowest lethal dose in humans was considered to be 0.3-1.0 g/kg bw. Assuming a bodyweight of 10 kg for a child, the lowest lethal dose would be 3 g (or 0.09 mol) methanol, arising from the metabolism of 0.09 mol or 6.9 g methyl acetate. At a concentration of 50 w/w % methyl acetate, the lethal dose for humans might be 14 g of nail polish remover. The Danish EPA found it not unlikely that children could risk methanol poisoning if nail polish removers are not properly stored/contained. -
United States
Patented Jan. 6, 1931 1,787,483 UNITED STATES PATENT OFFICE BURRITT SAMUEL LACY, OF RED BANK, NEWJERSEY, AssIGNOR, BY MEsNE AssIGN MENTS, TO THE ROESSLER & BASSLACHER CEEMICAL COMPANY, OF NEW YORK, N. Y., A. CORPORATION OF DELAWARE PROCESS OR BE PRODUCTION OF FOR AMIDE NoDrawing. Application filed November 17, 1925. Serial No. 89,708. This invention relates to the formation of the reverse not only of this reaction but also formamide from ammonia and carbon mon of the analogous reaction with the methyl oxide. While this reaction is not unknown, compound is catalyzed by sodium ethylate the literature is full of records of unsuccess resp. sodium methylate, thus:- 50 5 highful attempts pressures and and work expensive involving equipment. the use Asof C. CO+CHOH=HCOOCH. an example of these unsuccessful attempts However, in carrying out reaction C and that of Meyer & Orthner, Ber. 54B 1705 the analogous reaction between ethyl alco (1921) at 125 atmospheres with clay as a cat hol and carbon monoxide, not only did Staeh 10 alyst is most conclusive. The result has been ler use enormous pressures, but the time con a complete lack of commercial development. sumed by the operation made it very imprac Aside from the attempts to make form tical for commercial use. Thus Staehler used amide by the direct reaction between carbon a pressure of 300 atmospheres in reacting monoxide and ammonia, there have been de with ethyl alcohol to form ethyl formate, 15 scribed in the literature reactions by which and one of 160 atmospheres in reacting with 60 it might be considered possible to obtain methyl alcohol to form methyl formate; formamide indirectly from carbon monox while there was required a reaction period of ide and ammonia as the ultimate raw ma 14 days at room temperature to produce a terials, but the conditions under which these 45% of theory conversion of ethyl alcohol to 20 reactions occurred were such as to discour ethyl formate, and one of 8 days (partly at 65 age employing them for the commercial pro 100-120° C. -
N-Propyl Acetate Technical Data Sheet
Technical Data Sheet Product Name n-Propyl Acetate Synonyms Acetic Acid, n-propyl Ester Chemical Formula CH3COOC3H7 Product Description N-propyl acetate is a colorless, volatile solvent with an odor similar to acetone. It has good solvency power for many natural and synthetic resins. It is miscible with many organic solvents. Applications • Coatings • Wood lacquers • Aerosol sprays • Nail care • Cosmetic / personal care solvent • Fragrance solvent • Process solvent • Printing inks (especially flexographic and special screen) Typical Physical Properties Property Value Molecular Weight (g/mol) 102.13 Boiling Point @ 760 mmHg, 1.01 ar 101.5 °C (214.7 °F) Flash Point (Setaflash Closed Cup) 11.8 °C (53.24°F) Freezing Point -93 °C (-135.4°F) Vapor pressure@ 25°C — extrapolated 25 mmHg 4.79 Kpa Specific gravity (20/20°C) 0.888 Liquid Density @ 20°C 0.89 g/cm3 Vapor Density (air = 1) 3.5 Viscosity (cP or mPa•s @ 20°C) 0.6 Surface tension (dynes/cm or mN/m @ 20°C) 24.4 Specific heat (J/g/°C @ 25°C) No test data available Heat of vaporization (J/g) at normal boiling No test data available point Net heat of combustion (kJ/g) — predicted @ No test data available 25°C Autoignition temperature 380 °C (716 °F) Evaporation rate (n-butyl acetate = 1.0) 2.75 Solubility, g/L or % @ 20°C Solvent in water 2% Water in solvent 2.6% Hansen solubility parameters (J/cm³)1/2 _Total 8.6 _Non-Polar 7.5 _Polar 2.1 Form No. 327-00024-0812 Page 1 of 3 ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow _Hydrogen bonding 3.7 Partition Coefficient, n-octanol/water 1.4 (log Pow) Flammable limits (vol.% in air) Lower 1.7 Upper 8.0 Typical Physical Properties: This data provided for those properties are typical values, and should not be construed as sales specifications. -
UC Irvine UC Irvine Electronic Theses and Dissertations
UC Irvine UC Irvine Electronic Theses and Dissertations Title Steps Toward CO2 Reduction to Methanol via Electrochemical Cascade Catalysis Permalink https://escholarship.org/uc/item/4wx6g1vm Author Mercer, Ian Patrick Publication Date 2020 License https://creativecommons.org/licenses/by/4.0/ 4.0 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA, IRVINE Steps Toward CO2 Reduction to Methanol via Electrochemical Cascade Catalysis THESIS submitted in partial satisfaction of the requirements for the degree of MASTER OF SCIENCE in Chemistry by Ian Patrick Mercer Dissertation Committee: Professor Jenny Y. Yang, Chair Professor William J. Evans Professor Andy S. Borovik 2020 © 2020 Ian Patrick Mercer ii Table of Contents Acknowledgements iv Abstract v Chapter 1: Methyl Formate and Formaldehyde Reduction by Metal Hydrides 1 Chapter 2: Synthesis of Group 8 Metal Complexes of LDMA for the Study of Outer Sphere Interactions 25 Conclusion 33 Experimental 34 References 37 iii Acknowledgements I would like to express my sincere appreciation to my committee, especially my chair, Professor Jenny Y. Yang. Her commitment to science, mentoring, and ‘doing the right thing’ will forever inspire me. Financial support was provided by the University of California, Irvine and US Department of Energy, Office of Science, Office of Basic Energy Sciences Awards DE-SC0012150 and DE- 0000243266. iv Abstract of the Thesis Steps Toward CO2 Reduction to Methanol via Electrochemical Cascade Catalysis by Ian Patrick Mercer Master of Science in Chemistry University of California, Irvine, 2020 Professor Jenny Y. Yang, Chair Research on two independent projects is presented: (1) Homogeneous cascade catalysis has been used for the hydrogenation of CO2 to methanol as it allows for rational tuning of catalyst reactivity and lower reaction temperatures compared to heterogeneous catalysis. -
Process for Producing Methyl Methacrylate Verfahren Zur Herstellung Von Methylmethacrylat Procede Pour La Fabrication De Methacrylate De Methyle
~™ II 1 1 III II II 1 1 II II I Ml II I II I II (19) J European Patent Office Office europeen des brevets (11) EP 0 406 676 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publicationation and mention (51 ) |nt. CI.6: C07C 69/54, C07C 67/20 of the grant of the patent: 27.03.1996 Bulletin 1996/13 (21) Application number: 90112194.7 (22) Date of filing: 27.06.1990 (54) Process for producing methyl methacrylate Verfahren zur Herstellung von Methylmethacrylat Procede pour la fabrication de methacrylate de methyle (84) Designated Contracting States: • Ebata, Shuji, DE ES FR GB IT NL C/o Mitsubishi Gas Chem. Com. Tayuhama, Niigata-shi, Niigata-ken (JP) (30) Priority: 04.07.1989 JP 171190/89 (74) Representative: Turk, Gille, Hrabal, Leifert (43) Date of publication of application: Brucknerstrasse 20 09.01.1991 Bulletin 1991/02 D-40593 Dusseldorf (DE) (73) Proprietor: MITSUBISHI GAS CHEMICAL (56) References cited: COMPANY, INC. DE-A- 3 436 608 Chiyoda-ku, Tokyo (JP) • PATENT ABSTRACTS OF JAPAN vol. 14, no. 68 (72) Inventors: (C- 686)(401 1 ), 8 February 1 990; & JP-A-1 290653 • Higuchi, Hirofumi, (MITSUBISHI GAS CHEM) 22.11. 1989 C/o Mitsubishi Gas Chem. Com. Tayuhama, Niigata-shi, Niigata-ken (JP) Remarks: • Kida, Koichi, The file contains technical information submitted C/o Mitsubishi Gas Chem. Com. after the application was filed and not included in this Tayuhama, Niigata-shi, Niigata-ken (JP) specification CO CO CO o Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. -
Comprehensive Characterization of Toxicity of Fermentative Metabolites on Microbial Growth Brandon Wilbanks1 and Cong T
Wilbanks and Trinh Biotechnol Biofuels (2017) 10:262 DOI 10.1186/s13068-017-0952-4 Biotechnology for Biofuels RESEARCH Open Access Comprehensive characterization of toxicity of fermentative metabolites on microbial growth Brandon Wilbanks1 and Cong T. Trinh1,2* Abstract Background: Volatile carboxylic acids, alcohols, and esters are natural fermentative products, typically derived from anaerobic digestion. These metabolites have important functional roles to regulate cellular metabolisms and broad use as food supplements, favors and fragrances, solvents, and fuels. Comprehensive characterization of toxic efects of these metabolites on microbial growth under similar conditions is very limited. Results: We characterized a comprehensive list of thirty-two short-chain carboxylic acids, alcohols, and esters on microbial growth of Escherichia coli MG1655 under anaerobic conditions. We analyzed toxic efects of these metabo- lites on E. coli health, quantifed by growth rate and cell mass, as a function of metabolite types, concentrations, and physiochemical properties including carbon number, chemical functional group, chain branching feature, energy density, total surface area, and hydrophobicity. Strain characterization revealed that these metabolites exert distinct toxic efects on E. coli health. We found that higher concentrations and/or carbon numbers of metabolites cause more severe growth inhibition. For the same carbon numbers and metabolite concentrations, we discovered that branched chain metabolites are less toxic than the linear chain ones. Remarkably, shorter alkyl esters (e.g., ethyl butyrate) appear less toxic than longer alkyl esters (e.g., butyl acetate). Regardless of metabolites, hydrophobicity of a metabolite, gov- erned by its physiochemical properties, strongly correlates with the metabolite’s toxic efect on E. coli health. -
CO2 Vapormate Application Manual
→ VAPORMATE™ manual for fumigation VAPORMATE™ Manual for fumigation. 02 Contents Contents 03 Contents. 4 Important notice 11 5.5 Safety equipment 14 9. VAPORMATE efficacy 20 13. Monitoring equipment 11 5.5.1 Full-face respirator 14 9.1 Mode of action 20 13.1 Multi-gas detectors 5 1. Introduction 11 5.5.2 Self-contained breathing apparatus (SCBA) 11 5.5.3 Gas detection systems 14 9.2 Commodities that can be fumigated 20 14. Monitoring frequency 5 2. Product stewardship 11 5.6 Material compatibility 15 9.3 Dose calculation 11 5.7 Public safety 21 15. Fumigation 6 3. Background 16 10. Residues 12 5.8 Personal safety 6 3.1 Ethyl formate 21 16. Preparing for ventilation 12 5.9 Confined spaces hazard 17 11. Application technology 6 3.2 VAPORMATE 13 5.10 Handling emergencies 17 11.1 Portable electric vaporiser (PEV) 22 17. Troubleshooting 7 4. Physical and chemical properties 13 5.11 Emergency procedures 17 11.2 Fans 22 17.1 Valves 17 11.3 Temperature control 22 17.2 Cylinder condition 8 5. Safety 13 6. Legal requirements 22 17.3 Failure to control the target pests 8 5.1 Toxicity 18 12. Fumigation preparation 14 7. Environment 22 17.4 Non-target organisms 9 5.1.1 Short term (acute) exposure 18 12.1 Risk assessment 9 5.1.2 Long term (chronic) exposure 9 5.1.3 First aid 14 8. Cylinder safety 18 12.2 Fumigation chamber 9 5.2 Flammability 14 8.1 Cylinder storage 18 12.3 Leak testing 10 5.2.1 Fire prevention 14 8.2 Cylinder transport 19 12.4 Monitoring hoses 10 5.2.2 Fire fighting 14 8.3 Cylinder leaks 19 12.5 Placarding and securing fumigated 10 5.3 Asphyxiation areas 11 5.4 Low temperatures 04 Important notice Introduction, product stewardship 05 Important notice.