The electrochemical reduction of NbCl5, in compositions ranging from a NaCl-saturated melt (about 50mol%) to a 63mol% AlCl3 melt, was investigated by means of chronoamperometry, linear sweep voltammetry, chronopotentiometry and differential pulse polarography. The results were used to deduce the diffusion coefficient of NbV in the NaCl-saturated melt (table 61).

G.Ting, K.W.Fung, G.Mamantov: Journal of the Electrochemical Society, 1976, 123[5], 624-9

 

 

Table 61

Diffusivity of NbV in a NaCl-Saturated AlCl3 Melt

 

NbCl5 (M)

Temperature (C)

D (cm2/s)

0.0068

180

7.0 x 10-6

0.0134

160

6.6 x 10-6

0.0134

180

7.1 x 10-6

0.0134

220

1.1 x 10-5

0.0134

260

1.9 x 10-5

0.0134

300

2.5 x 10-5

0.0268

160

4.9 x 10-6

0.0268

180

5.8 x 10-6

0.0268

300

2.1 x 10-5

0.0519

160

4.8 x 10-6

0.0519

180

6.6 x 10-6