Separate Determination of Borohydride, Borate, Hydroxide, and Carbonate in the Borohydride Fuel Cell by Acid-Base and Iodometric Potentiometric Titration

Figure 1

Calculated titration curves, experimental titration curves, and the corresponding 𝑑pH/𝑑𝑉_𝑡 versus 𝑉_𝑡 curves for aqueous solutions of several mixtures of anions: (a): OH⁻; (b): OH⁻+CO₃²⁻; (c): OH⁻+BH₄⁻ or OH⁻+BO₂⁻ or OH⁻+BH₄⁻+BO₂⁻; (d): OH⁻+BH₄⁻+BO₂⁻+CO₃⁻.

(a)

(b)

(c)

(d)