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ChemicalBook CAS DataBase List Sodium nitrite
7632-00-0

Sodium nitrite synthesis

8synthesis methods
Sodium nitrite, yellowish-white solid, soluble, formed (1) by reaction of nitric oxide plus nitrogen dioxide and sodium carbonate or hydroxide, and then evaporating, (2) by heating sodium nitrate and lead to a high temperature, and then extracting the soluble portion (lead monoxide insoluble) with H2O and evaporating. Used as an important reagent (diazotizing) in organic chemistry.
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Yield:-

Reaction Conditions:

with sodium hydroxide for 2 h;Electrolysis;Time;

Steps:

2.3. Electrochemical tests in cathodic reactions

Ferricyanide reduction was studied with polished Au and porousCu-Ni RDEs in deaerated solutions containing 20 mM K3Fe(CN)6,20 mM K4Fe(CN)6and 1 M KOH. Experiments of nitrate reduc-tion were performed in a two-compartment deaerated cell, with100 ml of 1 M NaOH and 0.1 M NaNO3in the working compartment.Compact and porous Cu-Ni RDEs were used for recording cyclicvoltammograms and chronoamperometries, compact and poroussheet electrodes (about 3.0 cm2of immersed area) for prolongedelectrolyses. Analyses of the products were performed by with-drawing 0.1 mL samples from the cathodic compartment with aprecision pipette and assessing the products with a Metrohm model850 Professional IC Ion Chromatograph [38].

References:

Mattarozzi, Luca;Cattarin, Sandro;Comisso, Nicola;Gambirasi, Arianna;Guerriero, Paolo;Musiani, Marco;Vázquez-Gómez, Lourdes;Verlato, Enrico [Electrochimica Acta,2014,vol. 140,p. 337 - 344]

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