The electrical conductivity of hydrated zeolite A (Na-A) was reported as a function of temperature (figure 3). The results demonstrated that the electrical conductivity behavior could be used as a probe to study the various stages of the dehydration process in zeolites. The temperature dependence of the conductivity suggested that water resided in different locations within the framework and was released in stages, depending upon the temperature.

Effect of Multi-Stage Dehydration on Electrical Conductivity of Zeolite A. P.Qiu, Y.Huang, R.A.Secco, P.S.Balog: Solid State Ionics, 1999, 118[3–4], 281-5

Figure 4

Conductivity of Various Zeolites and their Complexes

(a: AgA•AgNO3, b: NaA•NaNO3, c: AgX•AgNO3, d: NaA, e: AgX, f: AgA)