Ref. value stds., pHRVS, for 0.05 mol/kg potassium hydrogen phthalate (KHPh) ref. buffer solns. in 10, 20, 40, and 70 wt% ethanol/water solvent mixts. from -5 to +40° were detd. from reversible emf. measurements. A large set of such emf. values (546 cells) was analyzed in terms of a multilinear regression method. Ancilliary values of the first ionization const. of o-phthalic acid (H2Ph; the parent acid to KHPh), required for the above calcns., were detd. also from reversible emf. measurements over the same range of solvent compns. and temps.

Reference value standards for pH measurements, and first ionization constants of o-phthalic acid, in ethanol/water solvent mixtures at temperatures from -5 to +40°C / P. Longhi, P.R. Mussini, T. Mussini, S. Rondinini. - In: JOURNAL OF CHEMICAL AND ENGINEERING DATA. - ISSN 0021-9568. - 34:1(1989), pp. 64-68. [10.1021/je00055a018]

Reference value standards for pH measurements, and first ionization constants of o-phthalic acid, in ethanol/water solvent mixtures at temperatures from -5 to +40°C

P. Longhi
Primo
;
P.R. Mussini
Secondo
;
T. Mussini
Penultimo
;
S. Rondinini
Ultimo
1989

Abstract

Ref. value stds., pHRVS, for 0.05 mol/kg potassium hydrogen phthalate (KHPh) ref. buffer solns. in 10, 20, 40, and 70 wt% ethanol/water solvent mixts. from -5 to +40° were detd. from reversible emf. measurements. A large set of such emf. values (546 cells) was analyzed in terms of a multilinear regression method. Ancilliary values of the first ionization const. of o-phthalic acid (H2Ph; the parent acid to KHPh), required for the above calcns., were detd. also from reversible emf. measurements over the same range of solvent compns. and temps.
Settore CHIM/01 - Chimica Analitica
Settore CHIM/02 - Chimica Fisica
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/176737
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