Data on the densities of organic compounds is essential for both scientific and industrial applications. A knowledge of densities is important in many areas, including custody transfer of materials, product specification, development of various predictive methods, and for characterizing compounds and estimating their purity. The densities of normal and branched alkanes are collected from the original literature published from 1863 to early 1996. All the values were critically evaluated. The tables contain the original literature data, along with their estimated uncertainties, and the evaluated data, in both numerical form and as coefficients to equations with selected statistical information. The volume also contains the CASR Number Index and a Chemical Name Index.