An investigation was made of the reduction of HfCl2, in equimolecular melts, by means of chronopotentiometry. The reaction was found to be diffusion-controlled, and the corresponding diffusion parameters could therefore be deduced (table 158).

T.Sakakura, T.Kirihara: Denki Kagaku, 1968, 36[6], 452-6

 

 

Table 158

Diffusion Parameters for Hf2+ in

Equimolecular NaCl-KCl Melts at 700 to 900C

 

HfCl2 (%)

Do (cm2/s)

Q (kcal/mol)

0.1247

2.95

8.000

0.2913

2.61

7.900

0.6350

2.72

7.950

1.1247

2.73

7.950