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Purification Process of Pentafluoroethane (HFC-125) Verfahren Zur Reinigung Von Pentafluorethan (HFC-125) Procédé De Purification Du Pentafluoroéthane (HFC-125)
Europäisches Patentamt *EP001153907B1* (19) European Patent Office Office européen des brevets (11) EP 1 153 907 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.7: C07C 17/386 of the grant of the patent: 06.10.2004 Bulletin 2004/41 (21) Application number: 01109907.4 (22) Date of filing: 24.04.2001 (54) Purification process of pentafluoroethane (HFC-125) Verfahren zur Reinigung von Pentafluorethan (HFC-125) Procédé de purification du pentafluoroéthane (HFC-125) (84) Designated Contracting States: • Basile, Giampiero DE ES FR GB IT NL 15100 Alessandria (IT) (30) Priority: 09.05.2000 IT MI001006 (74) Representative: Jacques, Philippe et al Solvay S.A. (43) Date of publication of application: Département de la Propriété Industrielle, 14.11.2001 Bulletin 2001/46 Rue de Ransbeek, 310 1120 Bruxelles (BE) (73) Proprietor: Solvay Solexis S.p.A. 20121 Milano (IT) (56) References cited: EP-A- 0 626 362 EP-A- 0 985 650 (72) Inventors: • Azzali, Daniele 20021 Bollate (MI) (IT) 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. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). EP 1 153 907 B1 Printed by Jouve, 75001 PARIS (FR) EP 1 153 907 B1 Description [0001] The present invention relates to a purification process of pentafluoroethane (HFC-125) containing as impurity chloropentafluoroethane (CFC-115). -
Of Grignard Reagent Formation. the Surface Nature of the Reaction
286 Ace. Chem. Res. 1990,23, 286-293 Mechanism of Grignard Reagent Formation. The Surface Nature of the Reaction H. M. WALBORSKY Dittmer Laboratory of Chemistry, Florida State University, Tallahassee, Florida 32306 Received February 23, 1990 (Revised Manuscript Received May 7, 1990) The reaction of organic halides (Br, C1, I) with mag- Scheme I nesium metal to yield what is referred to today as a Kharasch-Reinmuth Mechanism for Grignard Reagent Grignard reagent has been known since the turn of the Formation century,' The name derives from its discoverer, Nobel (1)(Mg0)AMg*)2y + RX 4 [(M~'~(MQ')~~-,('MQX)+ R.] + laureate Victor Grignard. How this reagent is formed, (Mgo)x-2(MQ')2~MgX)(MgR) that is, how a magnesium atom is inserted into a car- bon-halogen bond, is the subject of this Account. ('4 (Ms0),-*(M9')2~MgX)(MgR) + + (Mg0)x-dMg*)2y+2 + 2RMgX RX + Mg - RMgX Kharasch and Reinmuth,, persuaded by the work of late under the same conditions gave Itl = 6.2 X s-l. Another system that meets the above criterion is the Gomberg and Bachmad as well as by product analyses of many Grignard formation reactions that existed in vinyl system. The lack of reactivity of vinyl halides toward SN1reactions is well-known and is exemplified the literature prior to 1954,speculated that the reaction involved radicals and that the radical reactions might by the low solvolysis rate of 2-propenyl triflate5 in 80% involve "surface adherent radicals, at least in part". The ethanol at 25 OC, kl being 9.8 X s-l. -
RS44B (R453A) Safety Data Sheet
RS44B (R453A) Safety Data Sheet 06/01/2015 SECTION 1: IDENTIFICATION Product identifier Product Form: Mixture Product Name: In USA as RS44B (R453A) Alternate Names: Blended FormulaIntended Use of the Product Refrigerant Name, Address, and Telephone of the Responsible Party Company ComStar International Inc. 20-45 128th Street, College Point, NY 11356 Emergency Telephone Number Emergency number :(800) 328-0142, (718) 445-7900 SECTION 2: HAZARDS IDENTIFICATION Classification of the Substance or Mixture Classification (GHS-US) Simple Asphyxiant Liquefied gas H280 Label Elements GHS-US Labeling Hazard Pictograms (GHS-US) : Signal Word (GHS-US) : Warning Hazard Statements (GHS-US) : H280 - Contains gas under pressure; may explode if heated May displace oxygen and cause rapid suffocation Precautionary Statements (GHS-US) : P410+P403 - Protect from sunlight. Store in a well-ventilated place Other Hazardsx Other Hazards Not Contributing to the Classification: Exposure may aggravate those with pre-existing eye, skin, or respiratory conditions. Liquid contact with eyes or skin may cause frostbite. Unknown Acute Toxicity (GHS-US) Not available SECTION 3: COMPOSITION/INFORMATION ON INGREDIENTS Substances-Name Product identifier % (w/W) Classification (GHS-US) 1,1,1,2,3,3,3 Heptafluoropropane (HFC 227) (CAS No) 431-89-0 5 Simple Asphyxiant Liquefied gas, H280 Pentafluoroethane (HFC125) (CAS No) 354-33-6 20 Simple Asphyxiant Liquefied gas, H280 1,1,1,2-Tetrafluoroethane (HFC-134a) (CAS No) 811-97-2 53.8 Simple Asphyxiant Liquefied gas, H280 Difluoromethane (HFC-32) (CAS No) 75-10-5 20 Simple Asphyxiant Flam. Gas 1, H220 Liquefied gas, H280 Butane (HC-R600) (CAS No) 106-97-8 0.6 Simple Asphyxiant Flam. -
Methoxyethane, Physical Properties, Safety, MSDS, Enthalpy, Gas Liquid
(c) Bürkle GmbH 2021 Important Important information The tables “Chemical resistance of plastics”, “Plastics and their properties” and “Viscosity of liquids" as well as the information about chemical resistance given in the particular product descriptions have been drawn up based on information provided by various raw material manufacturers. These values are based solely on laboratory tests with raw materials. Plastic components produced from these raw materials are frequently subject to influences that cannot be recognized in laboratory tests (temperature, pressure, material stress, effects of chemicals, construction features, etc.). For this reason the values given are only to be regarded as being guidelines. In critical cases it is essential that a test is carried out first. No legal claims can be derived from this information; nor do we accept any liability for it. A knowledge of the chemical and mechanical resistance alone is not sufficient for the evaluation of the usability of a product. For example, the regulations concerning flammable liquids (explosion prevention) must also be taken into consideration. Copyright This table has been published and updated by Bürkle GmbH, D-79415 Bad Bellingen as a work of reference. This Copyright clause must not be removed. The table may be freely passed on and copied, provided that the information about the publisher is retained. Extensions, additions and translations If your own experiences with materials and media could be used to extend this table then we would be pleased to receive any additional information. Please send an E-Mail to [email protected]. We would also like to receive translations into other languages. -
United States Patent (19) 11) Patent Number: 4,585,788 Helsley Et Al
United States Patent (19) 11) Patent Number: 4,585,788 Helsley et al. 45) Date of Patent: Apr. 29, 1986 54 6,11-DIHYDRODIBENZB,EOXEPIN ACETIC ACIDS AND DERVATIVES FOREIGN PATENT DOCUMENTS 48-389 6/1972 Japan . 75 Inventors: Grover C. Helsley, Pottersville; 000425 7/1972 Japan. Arthur R. McFadden, East Brunswick, both of N.J.; David Primary Examiner-Norma S. Milestone Hoffman, North Kingstown, R.I. Attorney, Agent, or Firm-Curtis, Morris & Safford 57 ABSTRACT (73) Assignee: American Hoechst Corporation, 6,11-Dihydrodibenzb,eoxepin-acetic acids and deriva Somerville, N.J. tives having the general formula 21 Appl. No.: 459,774 1 22 Fied: Apr. 10, 1974 210 X Yn C-Z Related U.S. Application Data St. 5 k 63 Continuation-in-part of Ser. No. 394,801, Sep. 6, 1973, abandoned. (51) Int. Cl." .................. C07D 313/12; A61K 31/335 are prepared by multi-step sequences. X is C=O, CHCl, 52) U.S. C. ..................................... 514/450; 549/354 CHBr, CH2 or CHOR; Y is alkyl or alkoxy of 1 to 4 (58) Field of Search ........................ 260/333; 549/354; carbon atoms, halogen or trifluoromethyl; n is 0, 1, 2 or 514/450 3; Z is COOR5, CH2OR5, CONR25 or CONHOR5; and Rl-Rs are hydrogen or alkyl of 1 to 4 carbon atoms. 56) References Cited These compounds and the physiologically tolerable U.S. PATENT DOCUMENTS salts thereof are useful as antiinflammatory and analge 3,702,852 11/1972 Yale et al. ........................... 260/333 sic agents. 3,714,201 1/1973 Yale et al. ........................... 260/333 3,758,528 9/1973 Malen et al. -
List of Toxic Chemicals Within the Glycol Ethers Category
United States Office of Environmental Revised December 2000 Environmental Protection Information EPA 745-R-00-004 Agency Washington, DC 20460 TOXICS RELEASE INVENTORY List of Toxic Chemicals within the Glycol Ethers Category Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA) requires certain facilities manufacturing, processing, or otherwise using listed toxic chemicals to report their environmental releases of such chemicals annually. Beginning with the 1991 reporting year, such facilities also must report pollution prevention and recycling data for such chemicals, pursuant to section 6607 of the Pollution Prevention Act, 42 U.S.C. 13106. When enacted, EPCRA section 313 established an initial list of toxic chemicals that was comprised of more than 300 chemicals and 20 chemical categories. EPCRA section 313(d) authorizes EPA to add chemicals to or delete chemicals from the list, and sets forth criteria for these actions. CONTENTS Section 1. Introduction ...................................................... 3 Section 2. CAS Number List of Some Chemicals within the Glycol Ethers Category ........ 6 Section 3. CAS Number List of Some Mixtures That Contain Glycol Ethers within the Category .............................................. 185 Section 4. CAS Number List of Some Oligomeric or Polymeric Chemicals That Might Contain Glycol Ether Components within the Category .......................... 187 FOREWORD This document is an updated version of the previous document, EPA 745-R-99-006, June 1999. This version has the following updates: • The titles to Table 1 on page 6, Table 2 on page 185, and Table 3 on 187 are modified; and • The CAS number of second listing in Table 3 (Poly(oxy-1,2-ethanediyl), .alpha.- (phenylsulfonyl)-.omega.-methoxy-) on page 187 is changed from 7664-41-7 to 67584-43-4. -
Revised Group Additivity Values for Enthalpies of Formation (At 298 K) of Carbon– Hydrogen and Carbon–Hydrogen–Oxygen Compounds
Revised Group Additivity Values for Enthalpies of Formation (at 298 K) of Carbon– Hydrogen and Carbon–Hydrogen–Oxygen Compounds Cite as: Journal of Physical and Chemical Reference Data 25, 1411 (1996); https://doi.org/10.1063/1.555988 Submitted: 17 January 1996 . Published Online: 15 October 2009 N. Cohen ARTICLES YOU MAY BE INTERESTED IN Additivity Rules for the Estimation of Molecular Properties. Thermodynamic Properties The Journal of Chemical Physics 29, 546 (1958); https://doi.org/10.1063/1.1744539 Critical Evaluation of Thermochemical Properties of C1–C4 Species: Updated Group- Contributions to Estimate Thermochemical Properties Journal of Physical and Chemical Reference Data 44, 013101 (2015); https:// doi.org/10.1063/1.4902535 Estimation of the Thermodynamic Properties of Hydrocarbons at 298.15 K Journal of Physical and Chemical Reference Data 17, 1637 (1988); https:// doi.org/10.1063/1.555814 Journal of Physical and Chemical Reference Data 25, 1411 (1996); https://doi.org/10.1063/1.555988 25, 1411 © 1996 American Institute of Physics for the National Institute of Standards and Technology. Revised Group Additivity Values for Enthalpies of Formation (at 298 K) of Carbon-Hydrogen and Carbon-Hydrogen-Oxygen Compounds N. Cohen Thermochemical Kinetics Research, 6507 SE 31st Avenue, Portland, Oregon 97202-8627 Received January 17, 1996; revised manuscript received September 4, 1996 A program has been undertaken for the evaluation and revision of group additivity values (GAVs) necessary for predicting, by means of Benson's group additivity method, thermochemical properties of organic molecules. This review reports on the portion of that program dealing with GAVs for enthalpies of formation at 298.15 K (hereinafter abbreviated as 298 K) for carbon-hydrogen and carbon-hydrogen-oxygen compounds. -
Cclf3), CFC-114 (C 2Cl2f4), and CFC-115 (C2clf5
Atmos. Chem. Phys., 18, 979–1002, 2018 https://doi.org/10.5194/acp-18-979-2018 © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. Atmospheric histories and emissions of chlorofluorocarbons CFC-13 (CClF3), 6CFC-114 (C2Cl2F4), and CFC-115 (C2ClF5) Martin K. Vollmer1, Dickon Young2, Cathy M. Trudinger3, Jens Mühle4, Stephan Henne1, Matthew Rigby2, Sunyoung Park5, Shanlan Li5, Myriam Guillevic6, Blagoj Mitrevski3, Christina M. Harth4, Benjamin R. Miller7,8, Stefan Reimann1, Bo Yao9, L. Paul Steele3, Simon A. Wyss1, Chris R. Lunder10, Jgor Arduini11,12, Archie McCulloch2, Songhao Wu5, Tae Siek Rhee13, Ray H. J. Wang14, Peter K. Salameh4, Ove Hermansen10, Matthias Hill1, Ray L. Langenfelds3, Diane Ivy15, Simon O’Doherty2, Paul B. Krummel3, Michela Maione11,12, David M. Etheridge3, Lingxi Zhou16, Paul J. Fraser3, Ronald G. Prinn15, Ray F. Weiss4, and Peter G. Simmonds2 1Laboratory for Air Pollution and Environmental Technology, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland 2Atmospheric Chemistry Research Group, School of Chemistry, University of Bristol, Bristol, UK 3Climate Science Centre, CSIRO Oceans and Atmosphere, Aspendale, Victoria, Australia 4Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California, USA 5Kyungpook Institute of Oceanography, Kyungpook National University, South Korea 6METAS, Federal Institute of Metrology, Lindenweg 50, Bern-Wabern, Switzerland 7Earth System Research -
List of Criteria and Selected Air Contaminants to Be Used for Public Notice, with Spanish Translations. COMMON AIR CONTAMINANTS
List of Criteria and Selected Air Contaminants To Be Used for Public Notice, with Spanish Translations. COMMON AIR CONTAMINANTS: English Spanish NOX NOX (óxidos de nitrógeno) CO monóxido de carbono PM materia en partículas SO2 or SOX SO2 or SOX (óxidos de azufre) Halogens halógenos Hydrocarbons hidrocarburos Inorganic Acids ácidos inorgánicos Inorganic Bases bases inorgánicas Metals metales Carbon Compounds compuestos de carbono Carbon compounds including (but not limited to) : Benzene, Methyl Ethyl Ketone and Freon 11. Compuestos de carbono incluyendo (pero no limitándose a): Benceno, Metiletilcetona y Freón 11. OTHER AIR CONTAMINANTS English - Spanish Air Contaminant Glossary for Spanish Public Notice This list contains numerous air contaminants, mostly as listed in the ESL (= Effects Screening Levels) lists of 6/22/92 and updates of 1994. The Spanish translated names are capitalized for trademarks. In many such cases, there is no translation and the English word must be used. English Name Spanish Name Abamectin Abamectin Abate Abate acenaphthene acenafteno acetal acetal acetaldehyde acetaldehído acetamide acetamida acetic acid acido acético acetic anhydride anhídrido acético acetoacetoxyethyl methacrylate,2- 2-metacrilato acetoacetoxietílico acetone acetona acetone cyanohydrin cianohidrina de acetona acetonitrile acetonitrilo acetophenone acetofenona acetylaminofluorene,2- 2-acetilaminofluoreno acetyl chloride cloruro acetílico [AOAQG01/962 v2] Page 1 of 52 acetylene acetileno acetylene dichloride dicloruro de acetileno (1,2-dichloroethylene) -
Environmental Protection Agency Pt. 98, Subpt. A, Table A–1
Environmental Protection Agency Pt. 98, Subpt. A, Table A–1 to verify the amount of GHG emis- through the electronic GHG reporting sions, and failure to calculate GHG tool, must be submitted through that emissions following the methodologies tool. If not specified, requests, notifica- specified in this part. Each day of a tions or communications shall be sub- violation constitutes a separate viola- mitted to the following address: tion. (a) For U.S. mail. Director, Climate § 98.9 Addresses. Change Division, 1200 Pennsylvania Ave., NW., Mail Code: 6207J, Wash- All requests, notifications, and com- ington, DC 20460. munications to the Administrator pur- (b) For package deliveries. Director, suant to this part must be submitted Climate Change Division, 1310 L St, electronically and in a format as speci- NW., Washington, DC 20005. fied by the Administrator. For exam- ple, any requests, notifications and [74 FR 56374, Oct. 30, 2009, as amended at 76 communications that can be submitted FR 73900, Nov. 29, 2011] TABLE A–1 TO SUBPART A OF PART 98—GLOBAL WARMING POTENTIALS [100-Year Time Horizon] Global warming Name CAS No. Chemical formula potential (100 yr.) Chemical-Specific GWPs Carbon dioxide ................................................................... 124–38–9 CO2 ............................................... 1 a Methane ............................................................................. 74–82–8 CH4 ............................................... 25 a Nitrous oxide ..................................................................... -
United States Patent Office Patented Mar
3,083,236 United States Patent Office Patented Mar. 26, 1963 2 anol; or aliphatic ethers including diethoxyethane and di 3,083,236 methoxyethane, and hydrocarbons such as cyclohexane. HYDROGENATHON OF SEHYDROXY-METHYL The solution containing a small amount of a suitable FURFURAL catalyst, preferably copperchromite catalyst, is heated to Torleif Uine, Warrenville, John D. Garber, Westfield, and Robert E. Jones, Rahway, N.J., assignors to Merck & 5 the appropriate temperature for some time while under a Co., Inc., Rahway, N.J., a corporation of New Jersey hydrogen pressure varying from about 200 to 20,000 p.s.i., No Drawing. Filled Sept. 10, 1958, Ser. No. 760,056 preferably from 280 to 6000 p.s.i. The copperchromite 2 Claims. (C. 250-635) may also contain barium oxide which has a beneficial effect. About 10% by weight of catalyst based on the This invention relates to 5-hydroxymethyl furfural HMF is generally satisfactory. Palladium on charcoal (HMF) and has for its object the provision of an im was found to be an effective co-catalyst when mixed with proved process for forming derivatives from this com copperchromite in producing 1,6-hexanediol. pound. In accordance with our invention we subject The pressures used have varied from about 200 to HMF to catalytic hydrogenation to form a series of de 20,000 p.si. without noticeable additional benefits in the rivative compounds in an efficient operation. high part of the pressure range, especially above 6000 The invention involves the discovery that HMF can be p.s. i. After the reaction, the product is cooled, filtered subjected to hydrogenation with a suitable catalyst and to remove the catalyst, and heated under a vacuum to hydrogen under various conditions to produce different remove the solvent. -
Safety Data Sheet Pentafluoroethane 1. Identification of the Substance/Compound and Company 2. Hazards Identification
Revised edition no : 4 SAFETY DATA SHEET ACCORDING TO REGULATION 1907/2006 Date : 08.10.2019 PENTAFLUOROETHANE 1. IDENTIFICATION OF THE SUBSTANCE/COMPOUND AND COMPANY 1.1. Product identifier Name: Pentafluoroethane Chemical name IUPAC name: 1,1,1,2,2-pentafluoroethane Refrigerant-125 Freon-125 HP, refrigerator gas R 125 GHFU-125 Synonyms: R 125, HFC 125 Chemical formula: C2F5H Molecular weight: 120,0214 EC number 206-557-8 REACH Pre-Registration № Reference number 05-2114096899-20-0000 C&L bulk notification Reference number 02-2119708817-31-0000 CAS number 354-33-6 Structural formula: 1.2. Use of substance/ Applied as refrigerant both separate and in mixture composition; in sprinklers compound as fire-extinguishing means Identified uses Manufacture of substance Formulation/Blending Packaging/repackaging Manufacture of charged RAC/MAC systems and other refrigeration machines Manufacture of fire extinguishers Recovery operations = Recycling / Reclamation / Destruction (waste) MAC & RAC Mobile Air Conditoning and Stationary Refrigeration & Air Conditioning systems Recovery (F-gas / ODS) / Servicing Most common technical function of substance (what it does): Heat transfer agent Laboratory chemicals Other: Fire extinguishing agent Uses advised against For industrial or professional use only 1.3. Details of the supplier of the safety data sheet Manufacturer Joint Stock Company «HaloPolymer Perm» 614042, Russia, Perm, ul. Lasvinskaya 98 Phone № +7(342) 250-61-50 www.halopolymer.ru Only REACH representative in JSC «HaloPolymer Perm» (Submitting legal entity URALCHEM Assist EU: GmbH) Johannssenstrasse 10 30159, Hannover, Germany Tel: +49 511 45 99 444 1.4 Emergency telephone: +7-342-282-85-45 (24 hours) Great Britain +44 (0) 203 394 9870 (24/7) USA 1-877 271 7077 2.