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SCIENTIFIC ABBREVIATIONS AND SYMBOLS This table lists some abbreviations, acronyms, and symbols encountered in the physical sciences. Most entries in italic type are symbols for physical quantities; for more details on these, see the table “Symbols and Terminology for Physical and Chemical Quantities” in this section. Additional information on units may be found in the table “International System of Units” in Section 1. Many of the terms to which these abbreviations refer are included in the tables “Definitions of Scientific Terms” in Section 2 and “Techniques for Materials Characterization” in Section 12. Useful references for further information are given below. Publication practices vary with regard to the use of capital or low- er case letters for many abbreviations. An effort has been made to follow the most common practices in this table, but much variation is found in the literature. Likewise, policies on the use of periods in an abbreviation vary considerably. Periods are generally omitted in this table unless they are necessary for clarity. Periods should never appear in SI units. The SI prefixes (m, k, M, etc.) are included here, but they should never be used alone. Selected combinations of these prefixes with SI units (e.g., mg, kV, MW) are also included. Abbreviations are listed in alphabetical order without regard to case. Entries beginning with Greek letters fall at the end of the table. References 1. Mills, Ian, Ed., Quantities, Units, and Symbols in Physical Chemistry , Blackwell Scientific Publications, Oxford, 1993. 2. Kotyk, A., Quantities, Symbols, Units, and Abbreviations in the Life Sciences , Humana Press, Totawa, NJ, 1999. 3. Rhodes, P. H., The Organic Chemist’s Desk Reference , Chapman & Hall, London, 1995. 4. Minkin, V., Glossary of Terms used in Theoretical Organic Chemistry, Pure Appl. Chem . 71, 1919–1981, 1999. 5. Brown, R. D., Ed., Acronyms Used in Theoretical Chemistry, Pure Appl. Chem . 68, 387–456, 1996. 6. Quantities and Units, ISO Standards Handbook, Third Edition , International Organization for Standardization, Geneva, 1993. 7. Cohen, E. R., and Giacomo, P., Symbols, Units, Nomenclature, and Fundamental Constants in Physics, Physica 146A, 1–68, 1987. 8. Chemical Acronyms Database , Indiana University, < www.oscar.chem. indiana.edu/cfdocs/ libchem/acronyms/ acronymsearch.html>. 9. Acronyms and Symbols , <www3.interscience.wiley.com/stasa/>. 10. IUPAC Compendium of Chemical Terminology (Gold Book), <goldbook.iupac.org/>. A ampere; adenine (in genetic code) Å ångström A absorbance; area; Helmholtz energy; mass number A H Hall coefficient A r atomic weight (relative atomic mass) a atto (SI prefix for 10 –18 ) a absorption coefficient; acceleration; activity; van der Waals constant a 0 Bohr radius A/D analog to digital AAA acetoacetanilide AAO acetaldehyde oxime AAS atomic absorption spectroscopy ABA abscisic acid Abe abequose ABL α -acetylbutyrolactone abs absolute Ac acetyl; acetate
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This note was uploaded on 02/04/2011 for the course CHEM 101 taught by Professor Dr.n during the Spring '10 term at McMaster University.

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