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Martindale's 'The Reference Desk' |
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THE "VIRTUAL" - CHEMISTRY CENTER |
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Measurement
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Author: Jim Martindale A "Surfing the 3rd Wave at the Wedge & on the Net" © Production, Newport Beach, California.
UCI Science Library, Department of Defense, National Institutes of Health & National Science Foundation Martindale's Health Science Guide; Martindale's 'The Reference Desk' & Martindale's Graduate & Undergraduate Center are the sole property of James G. Martindale © and are hosted by UCI Science Library and various other sites around the world |
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CHEMISTRY CENTER |
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EXACT MASS CALCULATION - Mass Spectrometry Facility, Department of Chemistry, North Carolina State University "The table below contains the mass to use for a given element when calculating a compound's exact mass." For more informaion see the Mass Spectrometry Facility, or the Department of Chemistry, North Carolina State University
REVIEW OF PARTICLE PROPERTIES - 1998 EDITION - Particle Data Group, Lawrence Berkeley Laboratory (LBL) VERY EXTENSIVE. For more information see the List of Authors or Lawrence Berkeley Laboratory (LBL)
For Mathematics Specific Calculators see MATHEMATICS CALCULATORS |
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THE PERIODIC TABLE (JAVASCRIPT) - Barrett Golding, Dross LLP Includes: Name; Discoverer; Atomic Weight; Melt/Boil; Shell; Isotopes; Orbital; & SpecificGravity. For more information see DreamWave PERIODIC TABLE - C. Counterman, Academic Computing Services, MIT For more information see 3.091 Web Courseware; Introduction to Solid State Chemistry or Craig Allen Counterman's Home Page PERIODIC TABLES - Y. Bentor, Boone, North Carolina Multimedia (Text & Images). Listed by: Name, Atomic Number, Atomic Mass, Electron Configuration. Alkali Metals. Alkaline Earth Metals. Transition Metals and much more. PERIODIC TABLES - CHEMICOOL - D. Hsu, MIT Multimedia (Text & Images). For more informaiton see Welcome to the Tech, MIT PERIODIC TABLE DATA BASE - Computer Science Department, University of British Columbia Multimedia, Includes: Periodic Table of the Elements, Elements listed by Symbol, by Atomic Number, Name and Symbol. For more information see UBC Computer Science Department; Information servers at UBC. THE PICTORIAL PERIODIC TABLE - Department of Chemistry, Phoenix College For more information see Department of Chemistry
Cross Sections
Differential Cross Sections - Variable Energy, Fixed Angle Differential Cross Sections - Variable Energy, Fixed Momentum Transfer Total Cross Sections - Variable Energy
ELECTRONIC STRUCTURES DATBASE - Complex Systems Theory Branch, Naval Research Laboratory Multimedia Database (Text & Images). "This database consists of the following elements and structures: Most Periodic elements; Hydrides (NaCl structure); Carbides (NaCl structure); Nitrides(NaCl structure) & Oxides (NaCl structure). The results include: Band structure; Total energy; Density of states & the Derived quantities include: Equilibrium lattice constants; Elastic constants; Electron-phonon coupling constants & Criteria for the occurrence of magnetism." For more information see Complex Systems Theory Branch or the Naval Research Laboratory
HEPDATA DATABASES - The Durham/RAL HEP Databases For more information see The Durham/RAL HEP Databases; Departmnent of Physics or University of Durham, UK. PARTIAL-WAVE ANALYSES ON LINE: VIRGINIA TECH - Center for Analysis of Particle Scattering, Department of Physics, Virginia Tech Currently includes: Pion-Nucleon; Pion-Photoproduction; Nucleon-Nucleon; Kaon-Nucleon; Pion-Deuteron (elastic) and Pion-Deuteron to Proton + Proton. For more information see Virginia Tech Partial-Wave Analyses - Center for Analysis of Particle Scattering, Department of Physics, Virginia Tech
THERMAL NEUTRON CAPTURE GAMMA-RAYS - National Nuclear Data Center (NNDC) "The energy and photon intensity of gamma rays as seen in thermal-neutron capture are presented in two tables, one in ascending order of gamma energy and second organized by Z, A." For more information see National Nuclear Data Center (NNDC), Brookhaven National Laboratory, or Brookhaven National Laboratory (BNL).
PERIODIC TABLE OF ELEMENTS + NMR DATA - Universität Potsdamm, Bundesrepublik Deutschland (Germany) For more information see Tools; Spectroscopic Tools; NMR Home Page or the Institutes für Organische Chemie und Strukturanalytik
ISOTOPE EXPLORER - The Berkeley Laboratory Isotopes Project's, Ernest O. Lawrence Berkeley National Laboratory (LBNL) "This service is a general tool for displaying ENSDF-formatted nuclear data." For more information see The Berkeley Laboratory Isotopes Project's or Ernest O. Lawrence Berkeley National Laboratory (LBNL) JV-NUBASE (JAVA APPLET) (ENGLISH & FRANÇAIS) - Atomic Mass Data Center/Centre de données sur les masses atomiques, France "NUBASE contains experimentaly known nuclear properties, and some that have been estimated from extrapolation, for 3010 nuclides: mass, isomeric excitation energy, half-life, spin, parity, decay modes and intensities." For more information see Displays of NUBASE or Atomic Mass Data Center/Centre de données sur les masses atomiques NUBASE WITH THE Q-VALUE CALCULATOR: NUCLEAR STRUCTURE & DECAY DATA "NuBase is a compilation of ground and isomeric state properties for all known nuclides. The Q-value calculator can be used to display mass data from Audi-Wapstra's mass table and to calculate Q-values for nuclear reactions and decay." For more information see ODBC Databases or Nuclear Data NUCLEAR DATA VIEWER - Los Alamos National Laborabory (LANL) "This nuclear data viewer allows you to prepare graphs of experimental and/or evaluated data and view them on your work station. You can also enter your own data or theory into a text-editor window and plot them against other data or other theoretical curves". For more information see Data Available from the Nuclear Information Service (LANL) or T-2 Nuclear Information Sevice, Los Alamos National Laborabory (LANL) QTOOL: CALCULATION OF REACTION Q-VALUES AND THRESHOLDS - Group T-2 (Nuclear Theory and Applications), Theoretical Division, Los Alamos National Laboratory (LANL) "Qtool, implemented on this WWW page, prepares a table of Q-values and reaction thresholds for channels open up to energy EMAX. The calculation is based on the Audi-Wapstra 1995 experimental masses when available, otherwise on the FRDM (1992) mass model." For more information see T-2 Nuclear Data or T-2 Nuclear Information Service PERIODIC TABLE LINKED TO DATA OF KNOWN ISOTOPES FOR EACH ELEMENT - The Lund/LBNL Nuclear Data Search, LBNL & the Department of Physics, Lund University, Sweden For more information see The Lund/LBNL Nuclear Data Search; ODBC Databases or Nuclear Data
NUCLEAR WALLET CARD - National Nuclear Data Center (NNDC) "This is the updated (fifth) edition of the 1990 booklet of the same name. This booklet presents selected properties of all known nuclides and some of their isomeric states." For more information see National Nuclear Data Center (NNDC), Brookhaven National Laboratory, or Brookhaven National Laboratory (BNL).
NUCLEAR DECAY DATA IN THE MIRD FORMAT - National Nuclear Data Center (NNDC) "Tables and drawings of nuclear decay data in the Medical Internal Radiation Dose format" For more information see National Nuclear Data Center (NNDC), Brookhaven National Laboratory, or Brookhaven National Laboratory (BNL).
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Search for Species Data by Chemical Name Search for Species Data by Partial Formula Search for Species Data by Ionization Energy Search for Species Data by Proton Affinity Search for Species Data by Molecular Weight Thermophysical Properties of Fluid Systems
AMINO ACID PROPERTIES - Ronald C. Beavis & David FenyÒ, PROWL (Protein information Retrieval On-line W3orld Wide Web Lab); Supported by NYU Medical Center, Rockefeller University, NSF & NIH and hosted by Rockefeller University Multimedia Databases & Tutorials (Text & Images). For more information see Contents/Index; Prowl or David FenyÒ's Home Page AMINO ACID SELECTOR (CHEMSCAPE CHIME PLUG-IN) - W. McClure, Carnegie Mellon Universtiy "The selection forms above each frame let you view each of the 20 amino acids using the Chemscape Chime Plug-in." For more information see Molecular Models for Biochemistry at CMU
CHEMFINDER SEARCHING - CambridgeSoft Corporation "At the moment, this database contains an eclectic 2500 compounds. We are particularly well represented in small biological molecules, including sugars, amino acids, nucleic acids, and steroids. We also have large selections of drugs and dyes, with particular emphasis on household items." CHEMICAL COMPOUNDS: Abbreviations (Abkürzungen chemischer Verbindungen) - Department of Chemistry, Freie Universität Berlin Searchable Database using abbreviations of Chemical Compounds. In English and German. As an example: if you are looking for Alanine, Enter keywork search "ALA". For more information see Department of Chemistry (English Version); Fachbereich Chemie (Deutsche Version) CHEMICAL COMPOUNDS: Acronyms (Akronyme ) - Department of Chemistry, Freie Universität Berlin Searchable Database using abbreviations of Chemical Compounds. In English and German. "An acronym is a word formed from the initial letters of the words of a compound term". Examples include: NMR - Nuclear Magnetic Resonance. For more information see Department of Chemistry (English Version); Fachbereich Chemie (Deutsche Version) CHEMICAL: COMPOUND INDEX/SUBSTANZ-INDEX - Department of Chemistry, Freie Universität Berlin "This index of chemicals compounds only refers to those compounds that are treated in web pages". For more information see Department of Chemistry (English Version); Fachbereich Chemie (Deutsche Version) CHEMICAL INFORMATION - OSHA Computerized Information System, OSHA, U.S. Department of Labor Multimedia Databases. For more information see OSHA Computerized Information System THERMO EXPLORER (TE) (JAVA APPLET) - Joint venture between SEA++ & Octavian Micro Development Inc. "The TE is comprised of a database created from open literature data which gives you handy access to properties from more than 600 chemical compounds of interest. TE is interactive, and behaves like a dedicated chemical engineering calculator." For more information see SEA++'s Home Page or Octavian Micro Development Inc.
CHEMICAL WARFARE & CHEMICAL PROTECTION - ICA Division, OPCW, Netherlands Multimedia Database (Text & Images). For more information see The Chemical Weapons Convention Website, Organisation for the Prohibition of Chemical Weapons CHEMICAL WARFARE AGENTS: SAFETY DATA SHEETS FOR - Edgewood Research, Development and Engineering Center, Department of the Army, Department of Defense Multimedia Database (Text & Images). "The Chemical Weapons Convention defines chemical weapons as including not only toxic chemicals but also ammunition and equipment for their dispersal." For more information see ERDEC Safety Office Home Page or the U.S. Army Chemical & Biological Defense Command, DOD
GRI-MECH CALCULATOR (JAVA SCIRPT) - B. Serauskas, M. Frenklach, T. Bowman, G. Smith & B. Gardiner, Department of Mechanical Engineering, UC Berkeley and sponsored by the Gas Research Institute VERY EXTENSIVE. "Natural gas ignition and similar calculations" "In general, the Natural Gas and Air menus can be thought of as two input streams; for example, you may enter the principal composition of the mixture as one of the streams and use the other to introduce additives. " For more information see GRI MECH or Department of Mechanical Engineering INFRA-RED GAS RADIATION CALCULATOR (JAVA APPLET) - S. Bhattacharjee, Department of Mechanical Engineering, San Diego State University "This Daemon will find infra-red emission and band intensities for combustion species such as CO2, CO, H2O etc. using the wide-band correlations (Siegel and Howell)." For more information see Thermonet
CHEMICAL ANALYTICAL METHODS - OSHA Technical, OSHA, U.S. Department of Labor Multimedia Guidelines/Database (Text & Images). "Chemical sampling and analysis is used by occupational health and safety professionals to assess workplace contaminants and associated worker exposures." For more information see Virtual Library; Technical Links Index or OSHA Technical Links
HAZARDOUS SUBSTANCES DATABASE - National Occupational Health & Safety Commission, Commonwealth of Australia "The Hazardous Substances Database provides access to the List of Designated Hazardous Substances providing the first reference point for suppliers determining if any substance they supply is hazardous and appropriate risk and safety information." For more information see Databases or the National Occupational Health & Safety Commission NIOSH/OSHA/DOE HEALTH GUIDELINES - OSHA Technical, OSHA, U.S. Department of Labor Multimedia Guidelines/Database (Text & Images). "Guidelines summarize pertinent information about chemicals for workers and employers as well as for physicians, industrial hygienists, and other occupational safety and health professionals who may need such information to conduct effective occupational safety and health programs." For more information see Virtual Library; Technical Links Index or OSHA Technical Links
MEMBRANE LIPIDS - L. Beamer, Department of Biochemistry, University of Missouri "Here, you'll be able to find information about the nomenclature, crystallization, etc.. of membrane lipids." For more information see Department of Biochemistry
CYBERBOTANICA: PLANT COMPOUNDS USED IN CHEMOTHERAPY - L.A. Snyder, BioTech Project, Department of Chemistry, Indiana University Currently "contains a mini-chapter on plants and chemotherapy (also still under construction), but other chapters are in the works: plants used in bioremediation, fungi which produce antibiotics, and genetically engineered fruits and vegetables." For more information see BioTech MEDCHEM/BIOBYTE SERVER - Medcinal Chemistry Project, Pomona College & Claremont College For more information see Searchable Archives
MOLECULAR MODELS IN .pdb FORM - D. Woodcock, Department of Chemistry, Okanagan University College, British Columbia, Canada Multimedia Database (.pdb Text & Images). For more information see Department of Chemistry, Okanagan University College, British Columbia, Canada MOLECULAR STRUCTURE CALCULATIONS - Department of Chemistry, Colby College, Waterville, Maine Multimedia Database (Text & Images). The Molecular Structure Input Form will allow you to calculate molecular properties such as bond lengths, angles, atomic charges, the dipole moment, bond orders, and molecular orbital energies. For more information see Department of Chemistry, Colby College, Waterville, Maine MOLECULAR VIEWING GALLERY (CHEMSCAPE CHIME PLUG-IN) - DCU CHIME Project, School of Chemical Sciences, Dublin City University, Dublin, Ireland Multimedia Tutorial (Text & Images). "The viewing gallery currently contains over 280 molecules, organised alphabetically and viewable in pairs in adjacent viewing frames." For more information see The DCU CHIME Pages, Visitor Access Page or the School of Chemical Sciences Home Page
GREASE READY REFERENCE DATABASE - The Lubrizol Corporation "This manual presents a broad overview of the grease industry and its products and their selection and application." For more information see Reference Library or The Lubrizol Corporation LUBRICANT AND FUEL PERFORMANCE DATABASE - The Lubrizol Corporation Some examples include: Viscosity; Base Stocks; Lubricant Additives; Engine Oil Classification and Requirements; Major Engine Tests; Gasoline and Diesel Fuel Specifications; Small Engine Oils; Tractor Fluids; Railroad Diesel Engine Oils; Marine Diesel Engine Oils; Stationary Gas Engine Oils; Automatic Transmission Fluids; Automotive Gear Lubricants & Industrial Products." For more information see Reference Library or The Lubrizol Corporation
ORGANIC COMPOUNDS DATABASE - Database has been compiled by Harold M. Bell at Virginia Tech and hosted by the Department of Chemistry, Colby College, Waterville, Maine Multimedia Database (Text & Images). For more information see Department of Chemistry, Colby College, Waterville, Maine
Search for Plants with a Chosen Chemical (i.e., enter "Calcium") Search for Plants containing chemicals with a particular activity Search for Plants plants for a given ethnobotanical use (i.e., Plants used for healing WOUNDS)
THERMOPHYSICAL PROPERTIES OF FLUID SYSTEMS - 5TH EDITION - National Institute of Standards and Technology (NIST) VERY VERY EXTENSIVE. November 1998 release. Calculators: JavaScript & Java Applets for Graphs. Includes: Thermophysical property data (Density, Specific volume, Cp, Cv, Enthalpy, Internal energy, Entropy, Sound speed) for 16 Fluids (Water, Nitrogen, Oxygen, Carbon Dioxide, Methane, Ethane, Propane, Helium, Ammonia, Methane, difluoro (R32), Ethane, 2,2-dichloro-1,1,1-trifluoro- (R123), Ethane, pentafluoro- (R125) and Ethane, 1,1,1,2-tetrafluoro- (R134a)). For more information see Chemistry WebBook; NIST WebBook; NIST ONLINE Reference Databases or NIST Home Page
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"Chemical News Hourly Updates", American Chemical Society, U.S. "Ceramic News Daily Updates", American Ceramic Society, U.S. "ChemDex", M. Winter, University of Sheffield, UK "Chemistry", Rolf Claessen, University of Wuerzburg, Germany "Chemistry", F.S. Varveri, Institute of Physical Chemistry, NCSR 'Demokritos', Greece "Chemistry", B. Kriste, Freie Universität Berlin, Germany |