Concentration oscillations in the isothermal decomposition of Na2S2O4

✍ Scribed by Jerry R. Bischoff; David M. Mason

• Publisher: Elsevier Science
• Year: 1968
• Tongue: English
• Weight: 339 KB
• Volume: 23
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(68)87020-4

✦ Synopsis

Sodmm dlttuomte (NaiS,O,) undergoes decomposltlon In aqueous solutton In nccordance wlth the overall reactlon 2Na,S,O, + H,O + ZNaHSO,+ Na,S,O, The concentration of N+S,O, has been expenmentally observed to undergo damped osctllatlon wnh time m a closed, Isothermal system Reactlon-rate expresslons developed herem were solved wlth the ald of an analog and a dlgltal computer and the solutlons obtamed dlsplayed oscdlatory behavlor In the reactant concentratlon A necessary condltlon for such oscdlatlons IS the autoc&dytlc formatlon of at least two mtermedlates whlch oscdlate themselves and at least one of whlch IS coupled to the reactant by a reverslble-reactlon step The detaded chemlcal mecharusm of oscdlatlon m the Na,S,O, system remams to be determmed expenmentally