C R C logo Handbook of Chemistry and Physics Online
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How to Cite this Reference
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.

PREFACE

CRC HANDBOOK OF CHEMISTRY AND PHYSICS

103rd Edition

Quality Data in Support of Science


This 103rd Edition of the CRC Handbook of Chemistry and Physics maintains our commitment to the highest standards of data quality while extending coverage of topics of importance in chemistry and physics and related sciences. The breadth of coverage of the present CRC Handbook can be summarized as follows.

The demand for digital access to high-quality data in chemistry and physics keeps growing as knowledge discovery, artificial intelligence, data mining, and advanced modeling have become routine tools. In response, the CRC Handbook Team remains dedicated to the critical evaluation of data. As described in the accompanying essay on data evaluation, all our data tables have been produced by experts on the topic, who carefully review and evaluate all existing measurement results before choosing their recommended values.

Our commitment continues to use the tools of the Information Revolution – advanced database methods and Web technology – to ensure the widest possible distribution and usability of the CRC Handbook, which is now available 24 hours a day, every day, regardless of user location. The future is bright. Usage continues to grow, and the CRC Handbook is growing to meet today’s demands. We continue to explore new developments to meet these growing digital demands.

The success of the CRC Handbook is very dependent on feedback from its users. The Editor-in-Chief appreciates any suggestions from readers on proposed new topics for the CRC Handbook or comments on how its usefulness may be improved in future editions. Please send your comments to [email protected]

Numerous international experts make key contributions to the CRC Handbook every year. Their efforts play a critical role in the quality and diversity of the subject matter covered in the CRC Handbook and a list of current contributors is given in this section. The sound advice and guidance of the Editorial Advisory Board members are very much appreciated.

Fiona Macdonald, Senior Publisher – Chemical & Life Sciences, CRC Press/Taylor & Francis Group has been of great assistance and support in providing oversight to ensure that the CRC Handbook continues to satisfy the needs of the user community. Thanks are also due to Linda Manis Leggio and Pam Morrell for their detailed, cooperative work and extreme care in the production of the printed CRC Handbook. Special thanks are due to Associate Editors Maria J. Doa and Thomas Bruno for their assistance, especially in the area of environmental, analytical, and pharmaceutical chemistry as well as laboratory practice and chemical safety.

John Rumble
Gaithersburg, MD
[email protected]
April 2022

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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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