International Critical Tables offers data on physical, thermodynamic, mechanical, and other key properties and is a major reference source used by those involved in chemistry, physics, and engineering.

This classic and well-known reference was originally published for the National Research Council in 7 volumes. It contains an enormous amount of critical data on inorganic and organic compounds, and pure substances. The original 1000-page index is hyperlinked to each entry's appropriate page. Many tables have been knovelized to be interactive. The full text of the original print version is available in PDF format (full-text searchable), including the original index. All entries in the index are hyperlinked to their page numbers.