Equilibrium in Ammoniacal Solution of Silver Nitrate.

Rapid fabrication of silver microplates under an oxidative etching environment consisting of O2/Cl−, NH4OH/H2O2, and H2O2

“…8,36,37 With the presence of NH 4 OH, ijAgIJNH 3 ) 2 ] + instantaneously forms due to the high complex formation constant of NH 3 with Ag + (K f = 1.6 × 10 7 ). 40 We hypothesized that ijAgIJNH 3 ) 2 ] + functioned as the silver supply for the formation of AgMPs. Under neutral conditions, H 2 O 2 efficiently oxidizes silver nanospheres to Ag + .…”

“…With the available 4 OH, all Ag + were transformed into the complex. 40,52 However, when the alkalinity was adjusted by NaOH, quasi-sphere AgMPs (Fig. S6 †) were obtained instead of AgMPls.…”

3D AgCl microstructures selectively fabricated via Cl−-induced precipitation from [Ag(NH3)2]+

“…Although AgCl is sparingly soluble in water (K sp = 1.77 × 10 −10 ), 26 its solubility in NH 4 OH solution increases as it forms a water soluble [Ag(NH 3 ) 2 ] + Cl − complex. 27 As a result, a relatively high Cl − concentration was necessary to induce the precipitation (Fig. S2 †).…”

Predictive models for the phase behaviour and solution properties of weak electrolytes: nitric, sulphuric, and carbonic acids

“…Harned and Davis, 146 Harned and Bonner, 147 and Curry and Hazelton 148 carried out electromotive force measurements of aqueous solutions of sodium bicarbonate and extrapolated their results to zero ionic strength to obtain the thermodynamic equilibrium constant in the range 273 r T/K r 323. Over the same temperature range, Näsänen 149 and Näsänen et al 150 measured the pH of the solution and combined these data with titration determinations. At higher temperatures (373 r T/K r 523), Ryzhenko 151 and Read 152 determined the K a1 from conductivity measurements.…”