Quantities, Units and Symbols in Physical Chemistry
Quantities, Units and Symbols in Physical Chemistry, also known as the Green Book, is a compilation of terms and symbols widely used in the field of physical chemistry. It also includes a table of the fundamental constants, tables listing the properties of elementary particles, chemical elements, and nuclides, and information about conversion factors that are commonly used in physical chemistry. The Green Book is published by the International Union of Pure and Applied Chemistry (IUPAC) and is based on published, citeable sources. Information in the Green Book is synthesized from recommendations made by IUPAC, the International Union of Pure and Applied Physics (IUPAP) and the International Organization for Standardization (ISO), including recommendations listed in the IUPAP Red Book Symbols, Units, Nomenclature and Fundamental Constants in Physics and in the ISO 31 standards.
The third edition of the Green Book (ISBN 978-0-85404-433-7) was first published by IUPAC in 2007. A second printing of the third edition was released in 2008; this printing made several minor revisions to the 2007 text. A third printing of the third edition was released in 2011. The text of the third printing is identical to that of the second printing.
A Japanese translation of the third edition of the Green Book (ISBN 978-4-06-154359-1) was published in 2009. A French translation of the third edition of the Green Book (ISBN 978-2-8041-7207-7) was published in 2012.
A concise four-page summary of the most important material in the Green Book was published in the July-August 2011 issue of Chemistry International, the IUPAC news magazine.
The second edition of the Green Book (ISBN 0-632-03583-8) was first published in 1993. It was reprinted in 1995, 1996, and 1998.
The Green Book is a direct successor of the Manual of Symbols and Terminology for Physicochemical Quantities and Units, originally prepared for publication on behalf of IUPAC's Physical Chemistry Division by M. L. McGlashen in 1969. A full history of the Green Book's various editions is provided in the historical introduction to the third edition.
The second edition and the third edition (second printing) of the Green Book have both been made available online as PDF files; the PDF version of the third edition is fully searchable. The four-page concise summary is also available online as a PDF file. External Links (below).
In addition to the obvious data on quantities, units and symbols, the compilation contains some less obvious but very useful information on related topics.
Unit conversion is a notorious source of errors. Many people apply individual rules, e.g. "to obtain length in centimeters multiply the length in inches by 2.54", but combining several such conversions is laborious and prone to mistakes. A better way is to use the factor-label method, which is closely related to dimensional analysis and quantity calculus explained in sections 1.1 and 7.1 of this compilation.
Section 1.3 explains the rules for writing scientific symbols and names, for example, where to use capital letters or italics, and where their use is incorrect. No typographical rule seems to be missing, even such detail as whether "20° C" or "20 °C" is the correct form.
Section 3.8 introduces atomic units and gives a table of atomic units of various physical quantities and the conversion factor to the SI units. Section 7.3(v) gives a concise but clear tutorial on practical use of atomic units, in particular how to understand equations "written in atomic units".
- Nomenclature of Organic Chemistry (the Blue Book)
- Nomenclature of Inorganic Chemistry (the Red Book)
- Compendium of Chemical Terminology (the Gold Book)
- Compendium of Analytical Nomenclature (the Orange Book)
- "Quantities, Units and Symbols in Physical Chemistry", IUPAC Green Book, third edition ( E.R. Cohen, T. Cvitas, J.G. Frey, B. Holmström, K. Kuchitsu, R. Marquardt, I. Mills, F. Pavese, M. Quack, J. Stohner, H.L. Strauss, M. Takami, and A.J. Thor, "Quantities, Units and Symbols in Physical Chemistry", IUPAC Green Book, Third Edition, Second Printing, IUPAC & RSC Publishing, Cambridge (2008))
- Concise four-page summary of the Green Book's third edition
- Second edition of the Green Book
- IUPAC Nomenclature Books Series (commonly known as the "Colour Books")
- IUPAC official website
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