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Die Ionisationskonstante von Nicotinsäureamid in wässeriger Lösung (1954)

Willi, A. V.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 602-606

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: UV spectra of nicotinamide in dilute aqueous solutions of hydrochloric acid (4 · 10-4-m. -0,1-m.) and in alkaline solution were mea-sured at 20°. The ionisation constants of nicotinamide for different ionic strengths were calculated from the experimental data. The ionic strength was varied by addition of potassium chloride. Linear extra-polation of pK to zero ionic strength gave a value of pK0=3,328 (± 0,010) for the thermodynamic ionisation exponent at 20°.

Additional Material: 1 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370224

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