Abstract: In one embodiment, a measuring device includes a reference surface, a trough extending lengthwise away from the reference surface at substantially a right angle, and a scale affixed to the trough indicating a distance from the reference surface along the trough.

Abstract: This invention relates to a process for synthesizing para-diisopropylbenzene utilizing only cumene and propylene as raw materials. This synthesis technique offers the advantage of eliminating benzene as a raw material used in the process. The elimination of benzene is beneficial because it simplifies the process and eliminates the need to purchase and store benzene for use in the synthesis. The elimination of benzene from the synthesis is of particular value since the use of benzene in industrial applications has been under attack on the basis of environmental, safety, and health concerns.