KINETICS AND EQUILIBRIA IN THE NITRIC-ACID NITROUS-ACID SODIUM THIOCYANATE SYSTEM

Authors
JONES E MUNKLEY CG PHILLIPS ED STEDMAN G
Citation
E. Jones et al., KINETICS AND EQUILIBRIA IN THE NITRIC-ACID NITROUS-ACID SODIUM THIOCYANATE SYSTEM, Journal of the Chemical Society. Dalton transactions, (9), 1996, pp. 1915-1920
Citations number
20
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of the Chemical Society. Dalton transactions → ACNP
ISSN journal
03009246
Issue
9
Year of publication
1996
Pages
1915 - 1920
Database
ISI
SICI code
0300-9246(1996):9<1915:KAEITN>2.0.ZU;2-B
Abstract
The nature of the red species formed in acidic solutions containing ni trous acid and thiocyanate ion has been confirmed to be ONSCN. The alt ernative literature interpretation in terms of ONSCNH+ arises from neg lect of activity coefficients and partial protonation of SCN- to HNCS in moderately concentrated mineral acid. The kinetics bf the nitrous a cid-catalysed oxidation of thiocyanate in moderately concentrated nitr ic acid is controlled by rate-determining formation of N2O4 at even mo dest concentrations of thiocyanate. Literature work on this system is discussed.