The density of a material is defined as its mass per unit volume. For a pure substance the density has the same numerical value as its mass concentration.
The volume concentration (also called volume fraction) is defined as the volume of one of the constituents divided by the volume of all constituents of the
Amagat’s law or the Law of Partial Volumes of 1880 describes the behaviour and properties of mixtures of ideal (as well as some cases of non-ideal)
Dry bulk density of soil
Bulk density is a property of powders, granules, and other “divided” solids, especially used in reference to mineral components (soil, gravel), chemical