The Electropolishing of C-Steel in Orthophosphoric Acid Containing Methanolic Plant Extract

Figure 7

Variation of weight loss with time for mild steel (of a cross sectional area of 10 cm²) in 8 M H3PO4 solutions containing methanolic extract: (a) marjoram, (b) coriander seeds, (c) chamomile, and (d) guava leaves at 25°C.

(a)

(b)

(c)

(d)