1: sodium azide / methanol; H2O / 1.5 h / Heating 2: conc. hydrochlorid acid, H2 / 10 percent palladium-charcoal / ethanol 3: 80 percent / ethanol; H2O 4: 72 percent / triethylamine, / ethanol / 16 h / Heating 5: 79 percent / 2M hydrochloric acid / H2O / 0.5 h / Heating 6: 76 percent / sodium dithionite / aq. NaOH / Heating View Scheme

1: 20percent hydrochloric acid / 8 h / Heating 2: 80 percent / ethanol; H2O 3: 72 percent / triethylamine, / ethanol / 16 h / Heating 4: 79 percent / 2M hydrochloric acid / H2O / 0.5 h / Heating 5: 76 percent / sodium dithionite / aq. NaOH / Heating View Scheme

Fe2(S04)3; ethylenediaminetetraacetic acid in phosphate buffer T=20°C; Oxidation; decomposition; pH=7.2; Kinetics; Further Variations:without/with Fe(3+);