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Section: 2 | Scientific Abbreviations, Acronyms, and Symbols |
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The recommended form of citation is:
John R. Rumble, ed., CRC Handbook of Chemistry and Physics, 103rd Edition (Internet Version 2022), CRC Press/Taylor & Francis, Boca Raton, FL.
If a specific table is cited, use the format: "Physical Constants of Organic Compounds," in CRC Handbook of Chemistry and Physics, 103rd Edition (Internet Version 2022), John R. Rumble, ed., CRC Press/Taylor & Francis, Boca Raton, FL.

SCIENTIFIC ABBREVIATIONS, ACRONYMS, 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 (SI)” in Section 1. Many of the terms to which these abbreviations refer are included in the tables “Definitions of Scientific Terms” in Section 2 of the Online Edition and “Techniques for Materials Characterization” in Section 12, in both the Print Edition and Online Edition of the CRC Handbook. Useful references for further information are given below.

Publication practices vary with regard to the use of capital or lowercase 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. Quantities, Units, and Symbols in Physical Chemistry, Third Edition, IUPAC 2007, RSC Publishing, 2007.
  2. Kotyk, A., Quantities, Symbols, Units, and Abbreviations in the Life Sciences, Humana Press, Totawa, NJ, 1999. [https://doi.org/10.1007/978-1-59259-206-7]
  3. Cooper, C., and Purchase, R., Organic Chemist’s Desk Reference, Third Edition, CRC Press, Taylor & Francis, Boca Raton, FL, 2018.
  4. Minkin, V., Glossary of Terms used in Theoretical Organic Chemistry, Pure Appl. Chem. 71, 1919–1981, 1999. [https://doi.org/10.1351/pac199971101919]
  5. Brown, R. D., Ed., Acronyms Used in Theoretical Chemistry, Pure Appl. Chem. 68, 387–456, 1996. [https://doi.org/10.1351/pac199668020387]
  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.indiana.edu/~cheminfo/databases.html>.
  9. Acronyms and Symbols, <www3.interscience.wiley.com/stasa/>.
  10. IUPAC Compendium of Chemical Terminology (Gold Book), <goldbook.iupac.org>.
  11. IUPAC-IUB Joint Commission on Biochemical Nomenclature, Pure Appl. Chem. 56, 595, 1984.
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Scientific Abbreviations, Acronyms, and Symbols



SymbolMeaning
Continued on next page...
Aampere; alanine; adenine (in genetic code)
Åångström
Aabsorbance; area; Helmholtz energy; mass number
AHHall coefficient
Aratomic weight (relative atomic mass)
aatto (SI prefix for 10–18)
aabsorption coefficient; acceleration; activity; van der Waals constant
a0Bohr radius
AAAacetoacetanilide
Aad2-aminoadipic acid
AAF2-(acetylamino)fluorene
AANaminoacetonitrile
AAOacetaldehyde oxime
AASatomic absorption spectroscopy
ABAabscisic acid; acrylonitrile-butadiene acrylate
Abeabequose
ABLα-acetylbutyrolactone
ABSacrylonitrile-butadiene-styrene copolymer
absabsolute


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Searching for Chemicals and Properties

The CRC Handbook of Chemistry and Physics (HBCP) contains over 700 tables in over 450 documents which may be divided into several pages, all categorised into 17 major subject areas. The search on this page works by searching the content of each page individually, much like any web search. This provides a challenge if you want to search for multiple terms and those terms exist on different pages, or if you use a synonym/abbreviation that does not exist in the document.

We use metadata to avoid some of these issues by including certain keywords invisibly behind each table. Whilst this approach works well in many situations, like any web search it relies in the terms you have entered existing in the document with the same spelling, abbreviation etc.

Since chemical compounds and their properties are immutable, a single centralised database has been created from all chemical compounds throughout HBCP. This database contains every chemical compound and over 20 of the most common physical properties collated from each of the >700 tables. What's more, the properties can be searched numerically, including range searching, and you can even search by drawing a chemical structure. A complete list of every document table in which the compound occurs is listed, and are hyperlinked to the relevant document table.

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