Ionic transport was studied by measuring the electrical conductivity and Cl- self-diffusivity. A vacancy mechanism which involved both anions and cations was proposed in order to explain the results (table 131).

J.D.Heneisen, A.L.Laskar: Physics Letters A, 1974, 49[5], 369-70

 

 

Table 131

Diffusivity of Cl- in NH4Cl Single Crystals

 

Temperature (C)

D (cm2/s)

126.8

4.52 x 10-13

143.6

1.36 x 10-12

167.5

1.76 x 10-12

170.8

3.84 x 10-12