The 105th Edition of the CRC Handbook of Chemistry and Physics has significant improved coverage that bring important data to serve researchers in academia, industry, and government laboratories in chemistry, physics, and other scientific disciplines. The updated contents include:New data sets in x-ray related analytical chemistryFirst-ever critical compilations of transition point data for metal (carbide)-carbon and metal oxyanions transitionsUpdated datasets for eight properties of water, heavy water, and steamImportant environmental chemistry dataHighlights of the 105th Edition of the CRC Handbook of Chemistry and Physics include:369 different topics are included, with 771 distinct data tables and figures8 new topics added in this 105th Edition26 topics have major updates in the 105th EditionHarmonized property and variable names and symbolsWide range of property data on more than 20,000 compounds of greatest interest in research and industryThe CRC Handbook is citable as a reliable data source, and the data in the Handbook are traceableCoverage of atomic elements and isotopes without peerCommon properties on common compounds under common conditionsReliability for modeling, knowledge discoveryNew sections focused on important current topics including environmental chemistry and solid-state chemistry and physics