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Salt effects in the aqueous alkaline hydrolysis of N-hydroxyphthalimide. Kinetic evidence for the ion-pair formation

✍ Scribed by M. Niyaz Khan

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
326 KB
Volume
23
Category
Article
ISSN
0538-8066

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✦ Synopsis

The effects of the concentrations of LiCI, NaCl, KC1, CsCl, NaZCO3, BaC12, and Me4NCI on the rates of reactions of hydroxide ion with ionized N-hydroxyphthalimide (NHP) at 30°C and in a HzO-MeCN solvent containing 98%, v/v, HzO reveal a nonlinear increase in observed rate constants with increase in salt concentrations. The observed rate constants are highly sensitive to the valence state of cations and almost insensitive to the valence state of anions of the salts.

These observations are explained in terms of ion-pair formation between cations and NHP -.

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