\begin{table}%t2
%\centering
\par
\caption{\label{tbl-2}Reaction rate k measured for methylammonium methylcarbamate formation at a fixed temperature.}
\begin{tabular}{lllll}
\hline
\hline
         Temperature & Ice mixtures & (X$_{\rm CH_{3}NH_{2}}$)$_{0}$ & $k'$  &          $k$ \\
          (K) & CO$_{2}$$:$CH$_{3}$NH$_{2}$$:$H$_{2}$O &molar fraction &   (min$^{-1}$) &    (min$^{-1}$) \\
\hline\\[-3.2mm]
           80.8&    3.9$:$13$:$10        &  0.48 &  $(3.0\pm0.3)\times10^{-3}$        &   $4.2\times10^{-3}$        \\
\par
           91.7&  1.5$:$5.2$:$10          & 0.31 &$(4.1\pm0.7)\times10^{-3}$ & $7.0\times10^{-3}$           \\
\par
          98.6 &  1.5$:$5.9$:$10          & 0.34 &$(7.3\pm0.7)\times10^{-3}$ & $1.2\times10^{-2}$           \\
\par
           102&  2.0$:$6.0$:$10          & 0.33 &$(8.8\pm0.9)\times10^{-3}$ & $1.5\times10^{-2}$            \\
\par
           107& 1.0$:$4.9$:$10           & 0.31 &$(8.3\pm1.2)\times10^{-3}$ & $1.4\times10^{-2}$           \\
\hline
\end{tabular}
\end{table}