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Retention Indices for Frequently Reported Compounds of Plant Essential Oils
Retention Indices for Frequently Reported Compounds of Plant Essential Oils V. I. Babushok,a) P. J. Linstrom, and I. G. Zenkevichb) National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA (Received 1 August 2011; accepted 27 September 2011; published online 29 November 2011) Gas chromatographic retention indices were evaluated for 505 frequently reported plant essential oil components using a large retention index database. Retention data are presented for three types of commonly used stationary phases: dimethyl silicone (nonpolar), dimethyl sili- cone with 5% phenyl groups (slightly polar), and polyethylene glycol (polar) stationary phases. The evaluations are based on the treatment of multiple measurements with the number of data records ranging from about 5 to 800 per compound. Data analysis was limited to temperature programmed conditions. The data reported include the average and median values of retention index with standard deviations and confidence intervals. VC 2011 by the U.S. Secretary of Commerce on behalf of the United States. All rights reserved. [doi:10.1063/1.3653552] Key words: essential oils; gas chromatography; Kova´ts indices; linear indices; retention indices; identification; flavor; olfaction. CONTENTS 1. Introduction The practical applications of plant essential oils are very 1. Introduction................................ 1 diverse. They are used for the production of food, drugs, per- fumes, aromatherapy, and many other applications.1–4 The 2. Retention Indices ........................... 2 need for identification of essential oil components ranges 3. Retention Data Presentation and Discussion . 2 from product quality control to basic research. The identifi- 4. Summary.................................. 45 cation of unknown compounds remains a complex problem, in spite of great progress made in analytical techniques over 5. -
United States Patent (19) (11) 3,855,105 Diveley (45) Dec
United States Patent (19) (11) 3,855,105 Diveley (45) Dec. 17, 1974 54 THOPHOSPHORYLATING ASATURATED 3,284,540 1 1/1966 D'Alelio.............................. 260/869 HYDROCARBON GROUP 75 Inventor: William R. Diveley, Oakwood Hills, Primary Examiner-Benjamin R. Padgett Del. Attorney, Agent, or Firm-George H. Hopkins 73 Assignee: Hercules incorporated, Wilmington, (57) ABSTRACT Del. Disclosed is a process for making certain organo thio 22) Filed: June 16, 1969 phosphates and dithiophosphates, a number of which 21 ) Appl. No.: 833,741 have utility as insecticides. The process comprises ef fecting by free radical catalysis at about 0-150°C. re Related U.S. Application Data action of an organic compound characterized by a sat (63) Continuation-in-part of Ser. No. 514,652, Dec. 17, urated carbon with at least one hydrogen replaceable 1965, abandoned. under free radical conditions, and halo-thiophosphate of the formula: 52 U.S. C. ..... 204/162 R, 204/158 R, 260/329 R, 260/329 P, 260/340.6, 260/347.2, 260/958, 7, OR . 1 / 260/963, 260/971 X-S-P (51) Int. Cl................................................ B01j 1/10 N 58 Field of Search ............ 204/162, 158; 260/329, OR 260/340.6, 347.2,958, 963,971 wherein X is a halo radical, Z is selected from the (56) References Cited group consisting of the oxo and thioxo radicals, and R UNITED STATES PATENTS and R' are organic radicals. 3,256,370 6/1966 Fitch et al........................... 260/972 24 Claims, No Drawings 3,855, 105 2 THIOPHOSPHORYLATING ASATURATED rated carbons, each of which has one or more hydrogen HYDROCARBON GROUP radicals replaceable under free radical conditions. -
NBO Applications, 2020
NBO Bibliography 2020 2531 publications – Revised and compiled by Ariel Andrea on Aug. 9, 2021 Aarabi, M.; Gholami, S.; Grabowski, S. J. S-H ... O and O-H ... O Hydrogen Bonds-Comparison of Dimers of Thiocarboxylic and Carboxylic Acids Chemphyschem, (21): 1653-1664 2020. 10.1002/cphc.202000131 Aarthi, K. V.; Rajagopal, H.; Muthu, S.; Jayanthi, V.; Girija, R. Quantum chemical calculations, spectroscopic investigation and molecular docking analysis of 4-chloro- N-methylpyridine-2-carboxamide Journal of Molecular Structure, (1210) 2020. 10.1016/j.molstruc.2020.128053 Abad, N.; Lgaz, H.; Atioglu, Z.; Akkurt, M.; Mague, J. T.; Ali, I. H.; Chung, I. M.; Salghi, R.; Essassi, E.; Ramli, Y. Synthesis, crystal structure, hirshfeld surface analysis, DFT computations and molecular dynamics study of 2-(benzyloxy)-3-phenylquinoxaline Journal of Molecular Structure, (1221) 2020. 10.1016/j.molstruc.2020.128727 Abbenseth, J.; Wtjen, F.; Finger, M.; Schneider, S. The Metaphosphite (PO2-) Anion as a Ligand Angewandte Chemie-International Edition, (59): 23574-23578 2020. 10.1002/anie.202011750 Abbenseth, J.; Goicoechea, J. M. Recent developments in the chemistry of non-trigonal pnictogen pincer compounds: from bonding to catalysis Chemical Science, (11): 9728-9740 2020. 10.1039/d0sc03819a Abbenseth, J.; Schneider, S. A Terminal Chlorophosphinidene Complex Zeitschrift Fur Anorganische Und Allgemeine Chemie, (646): 565-569 2020. 10.1002/zaac.202000010 Abbiche, K.; Acharjee, N.; Salah, M.; Hilali, M.; Laknifli, A.; Komiha, N.; Marakchi, K. Unveiling the mechanism and selectivity of 3+2 cycloaddition reactions of benzonitrile oxide to ethyl trans-cinnamate, ethyl crotonate and trans-2-penten-1-ol through DFT analysis Journal of Molecular Modeling, (26) 2020. -
Black Phosphorus As a New Lubricant
Friction 6(1): 116–142 (2018) ISSN 2223-7690 https://doi.org/10.1007/s40544-018-0204-z CN 10-1237/TH RESEARCH ARTICLE Black phosphorus as a new lubricant Wei WANG, Guoxin XIE*, Jianbin LUO* State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China Received: 20 June 2017 / Revised: 18 October 2017 / Accepted: 07 December 2017 © The author(s) 2018. This article is published with open access at Springerlink.com Abstract: In recent years, a new 2D-layered material—black phosphorus (BP)—has been a rising star after the era of graphene owing to its high charge carrier mobility, tunable direct bandgap and unique in-plane anisotropic structure. With the development of the synthesis and modification methods of BP, its extensive applications, e.g., transistors, batteries and optoelectronics have emerged. In order to explore its full potential, research into the tribological properties of BP 2D-layered materials such as lubrication additives and fillers in self-lubricating composite materials would be not only of high scientific value but also of practical significance. In this work, recent advances on the friction and lubrication properties of BP nanosheets made by our group, including the micro-friction properties, the lubrication properties of BP nanosheets as water-based and oil-based lubrication additives, and the friction and wear of BP/PVDF composites will be presented. Finally, the future challenges and opportunities in the use of BP materials as lubricants will be discussed. Keywords: black phosphorus; two-dimensional (2D) material; lubricant additive; self-lubricating composite materials; friction 1 Introduction certain period owing to the finite lubricant thickness, and it can be easily affected by the environment. -
Amarsinha D. Nikam Vital Force Is Oxygen Extrait Du Livre Vital Force Is Oxygen De Amarsinha D
Amarsinha D. Nikam Vital Force is Oxygen Extrait du livre Vital Force is Oxygen de Amarsinha D. Nikam Éditeur : B. Jain http://www.editions-narayana.fr/b9138 Sur notre librairie en ligne vous trouverez un grand choix de livres d'homéopathie en français, anglais et allemand. Reproduction des extraits strictement interdite. Narayana Verlag GmbH, Blumenplatz 2, D-79400 Kandern, Allemagne Tel. +33 9 7044 6488 Email [email protected] http://www.editions-narayana.fr Oxygen Oxygen is derived from the Greek word, where oxys means acid, literally sharp from the taste of acids and genes means producer, literally begetter. It is the element with atomic number 8 and represented by the symbol 'O'. It is a highly reactive non-metallic period 2 element that readily forms compounds (notably oxides) with almost all other elements. Oxygen is the third most abundant element in the universe by mass after hydrogen and helium. Diatomic oxygen gas constitutes 21% of the volume of air. Water is the most familiar oxygen compound. OXYGEN HISTORY Oxygen makes up 21% of the atmosphere we breathe, but it was not discovered as a separate gas until the late i8th century. Oxygen was independently discovered by Carl Wilhelm Scheele, in Uppsala in 1773 or earlier and by Joseph Priestley in Wiltshire, in 1774. The name oxygen was coined in 1777 by Antoine Lavoisier. Although oxygen plays a life-supporting role, it took Narayana Verlag, 79400 Kandern Tel.: 0049 7626 974 970 0 Excerpt from Dr. Amarsinha D.Nikam: Vital Force is Oxygen about 150 years for the gas to be used in a proper manner for patients. -
Aryl‑NHC Group 13 Trimethyl Complexes : Structural, Stability and Bonding Insights
This document is downloaded from DR‑NTU (https://dr.ntu.edu.sg) Nanyang Technological University, Singapore. Aryl‑NHC group 13 trimethyl complexes : structural, stability and bonding insights Wu, Melissa Meiyi 2017 Wu, M. M. (2017). Aryl‑NHC group 13 trimethyl complexes : structural, stability and bonding insights. Doctoral thesis, Nanyang Technological University, Singapore. http://hdl.handle.net/10356/70204 https://doi.org/10.32657/10356/70204 Downloaded on 28 Sep 2021 13:14:06 SGT ATTENTION: The Singapore Copyright Act applies to the use of this document. Nanyang Technological University Library. NANYANG TECHNOLOGICAL UNIVERSITY DIVISION OF CHEMISTRY AND BIOLOGICAL CHEMISTRY SCHOOL OF PHYSICAL & MATHEMATICAL SCIENCES Aryl-NHC Group 13 Trimethyl Complexes: Structural, Stability and Bonding Insights Wu Meiyi Melissa G1102527F Supervisor: Asst Prof Felipe Garcia Contents Acknowledgements .............................................................................................................. iv Abbreviations ....................................................................................................................... v Abstract.............................................................................................................................. viii 1. Introduction 1.1. N-Heterocyclic Carbenes (NHC) ................................................................................. 1 1.1.1. Electronic Properties ............................................................................................ 1 1.1.2. Steric -
Friedel-Crafts Alkylation of Aromatic Compounds with Phosphorus Estersla B
ALKYLATION OF AROMATIC COMPOUNDS WITH PHOSPHORUS ESTERS 1339 Analyse der Verbindungen: Die Einlagerungsverbin- Kalium-titandisulfid: Kalium 21,0%, Titan 33, 8%, dungen wurden vorsichtig mit HN03 aufgeschlossen. Schwefel 44,2%, Summe: 99,0%. Zusammen- Das im Fall der Wolframverbindungen dabei ausfal- setzung: Ko^TiSj,^ . lende W03 wurde alkalisch gelöst. Wolfram und Mo- Reaktionsprodukt von WS* mit Li-naphthalid (Uber- lybdän wurden als Oxinat, Titan als TiOa und Schwe- schuß) : Lithium 9,8%, Wolfram 66,3%, Schwefel fel als BaS04 bestimmt. Die Bestimmung der Alkali- 23,5%, Summe: 99,6%. Verhältnis 1 W : 2 Lili95S. metalle erfolgte flammenphotometrisch. Reaktionsprodukt WS2 mit Na-naphthalid (Überschuß) : Kalium-wolf ramdisulfid: Präparat I: Kalium 8,3%, Natrium 26,9%, Wolfram 53,1%, Schwefel 18,8%, Wolfram 66,9%, Schwefel 23,7%, Summe: 98,9%. Summe: 98,8%. Verhältnis: 1 W : 2 Na2,0S. Zusammensetzung: K0.59WS2)0 . Präparat II: Kalium 8,1%, Wolfram 67,1%, Schwe- fel 23,4%, Summe: 98,6%. Zusammensetzung: K0.57WS2,O . Kalium-molybdändisulfid: Kalium 10,86%, Molybdän Wir danken der Deutschen Forschungsgemeinschaft 53,6%, Sdiwefel 35,5%, Summe: 99,9%. Zusam- und dem Fonds der Chemie für die Unterstützung die- mensetzung: K0!49MoS1?98 . ser Arbeit. 1 Auszug aus der Dissertation E. BAYER. Tübingen 1970. 5 T. E. HOVEN-ESCH U. J. SMID, J. Amer. chem. Soc. 87, 669 2 W. RÜDORFF, Chimia [Zürich] 19,489 [1965], [1965]. 3 H. M. SICK, Dissertation Tübingen 1959. 6 W. BILTZ, P. EHRLICH U. M. MEISEL, Z. anorg. allg. Chem. 4 C. STEIN. J. POULENARD, L. BONNETAIN U. J. GOLE, C. R. 234,97 [1934], hebd. -
Hazardous Laboratory Chemicals Disposal Guide
Third Edition HAZARDOUS LABORATORY CHEMICALS DISPOSAL GUIDE Third Edition HAZARDOUS LABORATORY CHEMICALS DISPOSAL GUIDE Margaret-Ann Armour LEWIS PUBLISHERS A CRC Press Company Boca Raton London New York Washington, D.C. This edition published in the Taylor & Francis e-Library, 2005. To purchase your own copy of this or any of Taylor & Francis or Routledge’s collection of thousands of eBooks please go to http://www.ebookstore.tandf.co.uk/. Library of Congress Cataloging-in-Publication Data Armour, M.A. (Margaret-Ann) Hazardous laboratory chemicals disposal guide/Margaret-Ann Armour.—3rd ed. p. cm. Includes bibliographical references. ISBN 1-56670-567-3 1. Chemical laboratories—Waste disposal. 2. Hazardous substances. I. Title. QD64.A76 2003 542′.89–dc21 2002043358 This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Reasonable efforts have been made to publish reliable data and information, but the authors and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use. Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage or retrieval system, without prior permission in writing from the publisher. The consent of CRC Press LLC does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific permission must be obtained in writing from CRC Press LLC for such copying. Direct all inquiries to CRC Press LLC, 2000 N.W. -
Environment and Ecology BHM 403 Techno India
Environment and Ecology BHM 403 Techno India ENVIRONMENT AND ECOLOGY BHM 403 (2008 -2017) PREPARED BY ANIS CHATTOPADHYAY ASST. PROFESSOR TECHNO INDIA EM-4/1, SECTOR –V, SALT LAKE KOLKATA -700091 1 Environment and Ecology BHM 403 Techno India 2008 GROUP – A ( Multiple Choice Type Questions ) 1. Choose correct answer from the given alternatives in each of the following questions : 10x1 = 10 i) Environmental Studies involve studies of a) evolution of life b) all aspects of human environment c) nitrogen cycle d) oxygen cycle. b ii) "Itai itai' disease is caused by a) Zinc b) Cadmium c) Mercury d) Iron. b iii) El Nino starts from a) Mediterranean coast b) Chinese coast c) South American cost d) Indian cost. C iv) The Greenhouse effect is due to a) Carbon dioxide, water vapour, methane and chlorofluorocarbons b) Nitrogen oxide c) Sulphur oxide d) Carbon monoxide. A v) The Ganga pollution is due to dumping of a) domestic and industrial sewages b) waste from forest c) food waste d) hospital waste. A vi) Biotic factor of ecosystem is a) Solar energy b) Temperature c) Soil d) Plants and animals. D vii) Medha Patkar is involved in a) Chipko movement b) Silent Valley movement c) Narmada Bachao movement d) none of these. C viii) The "Kyoto Protocol" is related with a) air pollution b) noise pollution c) water pollution d) none of these. A ix) BOD stands as a) Biochemical Oxygen Demand b) Biological Oxygen Demand c) Biggest Oxygen Demand d) Blown Out Dose. B x) The protective shield for life on earth is a) Carbon dioxide b) Ozone c) Oxygen d) Hydrogen. -
Material Safety Data Sheet Prepared to US OSHA, CMA, ANSI, Canadian WHMIS and EU Standards
MSDS NUMBER: 1201 Fluorine Excimer Laser Mix (1.0% or less Fluorine) Material Safety Data Sheet Prepared to US OSHA, CMA, ANSI, Canadian WHMIS and EU Standards SECTION 1. PRODUCT IDENTIFICATION PRODUCT NAME: Fluorine Excimer Laser Mix (1.0% or less Fluorine) US DOT NAME: Compressed Gas, n.o.s. (Fluorine, other gas) UN 1956 (see Sec. 14) CHEMICAL NAME: Mixture of Fluorine (1.0% or Less) and Argon, Krypton or Xenon balance Helium, Neon or Nitrogen FORMULA: Argon = Ar; Fluorine = F2; Helium = He; Krypton = Kr; Neon = Ne; Nitrogen = N2; SYNONYMS: Not Applicable US MANUFACTURER: Linde LLC 575 Mountain Ave. Murray Hill, NJ 07974 Phone: 908-464-8100 lindeus.com 24 HOUR EMERGENCY CONTACT, CHEMTREC: 800/424-9300, 703/527-3887 For additional product information contact your customer service representative. PRODUCT USE: In Excimer Laser and Research and Development ALL WHMIS required information is included in appropriate sections based on the ANSI Z400.1-2004 format. This product has been classified in accordance with the hazard criteria of the CPR and the MSDS contains all the information required by the CPR. The product is also classified per all applicable EU Directives through EC 1907: 2006 SECTION 2. HAZARD IDENTIFICATION EU LABELING AND CLASSIFICATION: This gas mixture meets the definition of hazardous according to the criteria of the European Union Council Directive 67/548/EEC and based on current guidelines under EC 1907: 2006. EU CLASSIFICATION: Xn (Harmful) EU RISK PHRASES: R: 20; R: 21; R: 36/37/38 EU SAFETY PHRASES: S: (1/2)*; S: 7/9, S: 26, S: 36/37/39, S: 45 See Section 15 for full definition of Risk and Safety Phrases. -
Unified Science Volume 1: Mathematics, Physics and Chemistry
UNIFIED SCIENCE VOLUME 1: MATHEMATICS, PHYSICS AND CHEMISTRY RICHARD L. LEWIS, PHD [email protected] UNIFICATION THOUGHT INSTITUTE JAPAN • KOREA • USA © 2013 Thank you True Parents CONTENTS Unified Science!.............................................................1 The Abstract Realm!......................................................3 Linear Extension!..........................................................................3 The integers!.................................................................................3 Passive and active!.......................................................................5 Primes!..........................................................................................7 Infinity of infinities!.........................................................................8 Transcendental numbers!............................................................10 Distribution of the primes!...........................................................12 Circular Rotation!.......................................................................13 The (co)sine function!..................................................................14 Waves!.........................................................................................16 Complex numbers!.....................................................................23 The Rotation Operator!................................................................24 Harmonic Primes!........................................................................29 Abstract Hierarchy!....................................................................31 -
19770005666.Pdf
General Disclaimer One or more of the Following Statements may affect this Document This document has been reproduced from the best copy furnished by the organizational source. It is being released in the interest of making available as much information as possible. This document may contain data, which exceeds the sheet parameters. It was furnished in this condition by the organizational source and is the best copy available. This document may contain tone-on-tone or color graphs, charts and/or pictures, which have been reproduced in black and white. This document is paginated as submitted by the original source. Portions of this document are not fully legible due to the historical nature of some of the material. However, it is the best reproduction available from the original submission. Produced by the NASA Center for Aerospace Information (CASI) V NASA TECHNICAL NASA TM X-73983 MEMORANDUM 00 X I-- A SURVEY OF KINETIC DATA OF COMPOUNDS CONTAINING FLUORINE Dana A. Brewer Langley Research Center (NASA-TM-X-73983) A SURVEY OF KINETIC DATA N77-12609 OF COMPOUNDS CONTAINING FLOURINE (NASA) 119 p, HC A06/MF A01 CSCL 04A Unclas G3/46 55838 November 1976 This informal documentation medium is used to provide accelerated or special release of technical information to selected users. The contents may not meet NASA formal editing and publication standards, may be re- vised, or may I be incorporated in another publication. 4WAil NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DEC 1976 LANGLEY RESEARCH CENTER, HAMPTON, VIRGINIA 23665 WEIVED 0M tosp, Sn PACILITY INpUT BRANCH < C' ' r ^| ' 1. Report No.