Density,
Viscosity, Surface Tension, and Refractive
Index for Binary Mixtures of 1,3-Dimethyladamantane with Four C<sub>10</sub> Alkanes
- Publication date
- Publisher
Abstract
For
a comprehensive understanding of the properties of 1,3-dimethyladamantane
(1,3-DMA) as a new potential candidate of high energy-density hydrocarbon
fuels, densities, viscosities, surface tensions, and refractive indices
for binary mixtures of 1,3-DMA with each of four C<sub>10</sub> alkanes, <i>n</i>-decane, butylcyclohexane, decalin, and <i>exo</i>-tetrahydrodicyclopentadiene (JP-10), are determined over the whole
composition range at different temperatures ranging from (293.15 to
363.15) K and atmospheric pressure (0.1 MPa). The excess molar volume
(<i>V</i><sub>m</sub><sup>E</sup>), the viscosity deviation
(Δη), the surface tension deviation (Δγ),
and the refractive index deviation (Δ<i>n</i><sub>D</sub>) for these binary systems are calculated. All of the <i>V</i><sub>m</sub><sup>E</sup> values are negative over the whole
composition range for these systems, and they show slight changes
against the temperature. The Δη values for the systems
except 1,3-DMA + JP-10 are negative, and the absolute values decrease
obviously with rising temperature. The Δγ gives clearly
negative values for the system of 1,3-DMA + <i>n</i>-decane
and shows small values near zero for the other systems. Negligible
values of Δ<i>n</i><sub>D</sub> indicate that the
refractive indices show nearly linear additions from those of two
components for the binary mixtures. The results could provide important
reference information for the development and performance of new high
energy-density hydrocarbon fuels