Investigation of the anodic oxidation of azide ion on platinum electrodes

Determination of Primary Explosive Azides in Environmental Samples by Sequential Injection Amperometry

“…Nitrite is dissociated to a greater extent than the other two species, which might explain the larger signal for nitrite than sulfide and hypochlorite. On the basis of previous work, 14 it was expected that hydrogen cyanide (from cyanide) would interfere to a greater extent than that observed in the study of interference. At the pH used in the experiment, the cyanide should cross the membrane as HCN (pK a = 9.21) and remain in the neutral form; hence the oxidation of cyanide ion would not be expected.…”

“…The method is applicable to sodium azide, which has been used as a pesticide and herbicide, and metal azide primary explosives. The analytical method is based upon amperometric detection of the azide ion at a potential at which the azide ion is oxidized 14 under basic conditions.…”

Chemical versatility of azide radical: journey from a transient species to synthetic accessibility in organic transformations

“…40 There were only a few attempts to determine the redox value by cyclic voltammetry (CV) because CV works only reliably for reversible reactions. 41 The charge exchange reaction between the anion and the radical proceeds rapidly and irreversibly via a diffusion controlled way. However, the CV experiments, which revealed a single peak on the anodic scan and no peak on the cathodic scan due to the rapid decay of the N 3 radicals, was also done by the same group to calculate the potential using eqn (A), assuming rapid electrode oxidation process [where, k = bimolecular rate constant for the decay of N 3 and C 0 = initial photolysis.…”

New potentiometric transducer based on a Mn(II) [2-formylquinoline thiosemicarbazone] complex for static and hydrodynamic assessment of azides

“…Among these approaches are: redox titrimetry [5], electron paramagnetic resonance [6], gasometry [7], spectrometry [8,9], cyclic voltammetry [10], amperometry [11], polarography [12] and chromatography [13][14][15]. Most of these methods require expensive instrumentation, rather complicated techniques, and/or sample pretreatments.…”