Page 28 - Pharmaceutical Analytical Chemistry II - Pharm D- 02-06-07102
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OXIDATION REDUCTION TITRATION
It is a type of titration based on a redox reaction between the analyte and
titrant
Standard Oxidizing Agents Standard Reducing Agents
Potassium permanganate, KMnO4 Sodium thiosulfate, Na2S2O3
Cerium (IV), Ce4+ Fe2+
Potassium iodate, KIO3
Periodic acid, HIO4, H5IO6
Potassium bromate, KBrO3
Potassium dichromate, K2Cr2O7
Iodine, I2
Standard Oxidizing Agents
Standard Oxidizing Agents Reduction E0 V / 1 M H2SO4
H5IO6 species +1.6
KMnO4 IO3− +1.51
Ce4+ +1.44
KBrO3 Mn2+ +1.44
K2Cr2O7 Ce3+ +1.33
I2 Br− +0.536
Cr3+
I−
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