S. No

Bath condition

d (0.1)

(µm)

d (0.5)

(µm)

d (0.9)

(µm)

Specific surface area

(m²/g)

Surface weighted mean

(µm)

Volume weighted mean

(µm)

Volume % of particle size less than 1 µm

1

Low current density

3.4

13.2

418.2

0.7

8.8

97.8

-

2

Boric acid

2.6

6.6

15.5

1.1

5.2

8.0

-

3

Glycerine

3.2

13.2

101.6

0.7

8.3

47.8

-

4

High current density

140 nm

230 nm

1.6

23.2

258 nm

611 nm

73.1