Kobayashi, Riki2009-06-042009-06-041988Zega, James Alexander. "Spin lattice relaxation in pure and mixed alkanes and their correlation with thermodynamic and macroscopic transport properties." (1988) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13333">https://hdl.handle.net/1911/13333</a>.https://hdl.handle.net/1911/13333Spin-lattice, T$\sb1$, and spin-spin, T$\sb2$, relaxation times of the alkanes from n-pentane to n-hexadecane were measured at 25$\sp\circ$C. The T$\sb1$ values agree well with those of previous investigators. The values of T$\sb1$ and T$\sb2$ were equal for each alkane studied. Empirical correlations were found between T$\sb1$ and two parameters: the acentric factor and the rotational coupling coefficient. The product $\eta$T$\sb1$ was constant for all the alkanes except n-pentane. The spin-lattice relaxation time was dedimensionalized and a three parameter corresponding states correlation was developed following the treatment of Tham and Gubbins (42) for transport coefficients. Excellent correspondence was found for the saturated alkanes over the temperature range 22 to 90$\sp\circ$C and for benzene from 12 to 63$\sp\circ$C. Spin-lattice relaxation times of mixtures of n-hexane and n-hexadecane were measured at 25$\sp\circ$C. The decay of magnetization could not be described by a single exponential curve. The results were analyzed using three methods. (Abstract shortened with permission of author.)95 p.application/pdfengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.Chemical engineeringPhysicsPhysical chemistryThesisTHESIS CH.E. 1988 ZEGA