โ Scribed by D. Petitjean; M. Pierre; N. Hubert; M. Bouroukba; M. Dirand
No coin nor oath required. For personal study only.
Commercial multi-alkane product whose normal alkane distribution is of the `normal logarithmic type', has been modiยฎed by adding pure components (n-C 20 H 42 , n-C 32 H 66 , n-C 50 H 102 ) in different proportions. The molecular alloys resulting have been studied by means of X-ray diffraction, at room temperature. It appears that addition of pure components to the initial product has no inยฏuence on the structural state of the wax when the proportion is lower than that of the component of higher concentration contained in the initial multi-alkane mixture. On the contrary, when the added proportion is higher than the concentration of the average alkane representative of the distribution, a new series of 00l reยฏections characteristic of the pure component structure added, is observed. Moreover, this work has shown the possible existence of a solubility of wax in pure n-alkane.
๐ SIMILAR VOLUMES
**The differing thermodynamic behavior of straightโchain and branched hydrocarbons** in mixtures with other compounds is particularly important in separation processes. An extension of the Flory theory now permits a consistent description of the excess quantitites for mixtures of isomeric alkanes wi