Glass forming ability of concentrated solutions of LiNO 3 in 1,3-diaminopropane (DAP) was investigated by thermal analysis. Electric conductivity of the 40 mol% LiNO 3 solution has been measured in a wide range of frequency and temperature including the glassy state. Electric conductivity is very small and the frequency dependence is observed in the glassy and supercooled liquid state near T g. The conductivity relaxation time ( τ σ ) is obtained from the frequency dependence of the conductivity with a power law. The system studied may be classified as a coupling system.