Effect of Nitrite Ions on Steel Corrosion Induced by Chloride or Sulfate Ions

Figure 12

Comparing the 𝐸_corr induced by Cl⁻ and SO₄²⁻. (a) pH 8.1, NO₂⁻=0 mol/L, (b) pH 8.1, NO₂⁻=0.053 mol/L, (c) pH 8.1, NO₂⁻=0.2 mol/L, (d) pH 10.3, NO₂⁻=0.0 mol/L, (e) pH 10.3, NO₂⁻=0.053 mol/L, (f) pH 10.3, NO₂⁻=0.2 mol/L, (g) pH 12.6, NO₂⁻=0.0 mol/L, (h) pH 12.6, NO₂⁻=0.053 mol/L, (i) pH 12.6, NO₂⁻=0.2 mol/L.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)