Kinetic Study and Mechanism of Mono-β-Naphthylamine Phosphate (Ba-Salt) via Conjugate Acid Species

Abstract

Hydrolysis of mono-β-naphthylamine phosphate (Ba-salt) was

carried out in the acid region (0.1-7.0 mol dm^–3) at 98ºC in aqueous

media. The acid log rate profile has a rate maxima at 4.0 mol

dm^–3. Here mainly contribution of mono-β-naphthylamine phosphate

(Ba-salt) is involved in hydrolysis. The participation of conjugate

acid species and determination of theoretical rates has been

exhibited by ionic strength data. The observed rates were also found

in close agreement with the estimated theoretical rates derived from

the 2nd empirical term of Debye-Hückel equation. By molecularity

data the bimolecular nature of reaction is detected and P-N bond

fission has been stengthened by isokinetic relationship.