Determination of Protonation Constants for 2-Hydroxy-1-(2-Hydroxy-4-Sulpho-1-Naphthylazo)-3-Naphthoic Acid

Liyanage, J.A.; Janaratne, T.K.

dc.contributor.author	Liyanage, J.A.
dc.contributor.author	Janaratne, T.K.
dc.date.accessioned	2015-02-27T05:16:25Z
dc.date.available	2015-02-27T05:16:25Z
dc.date.issued	2007
dc.identifier	Chemistry	en_US
dc.identifier.citation	Liyanage, J.A. and Janaratne, T.K. (2007). Determination of Protonation Constants for 2-Hydroxy-1-(2-Hydroxy-4-Sulpho-1-Naphthylazo)-3-Naphthoic Acid, Journal of Science, University of Kelaniya, 3: 47-52.	en_US
dc.identifier.issn	Chemistry
dc.identifier.uri
dc.identifier.uri	http://repository.kln.ac.lk/handle/123456789/5435
dc.description.abstract	Chemical speciation modelling in combination with potentiometric titration method was used to determine the protonation constants for 2-hydroxy-1-(2-hydroxy-4-sulpho-1-naphthylazo)-3-naphthoic acid, the Patton and Reeder’s reagent, at 25° C in three ionic strengths of 0.1 mol dm-3, 0.01 mol dm-3 and 0.001 mol dm-3 NaNO3. Potentiometric titrations were performed and pH, titrant volume, temperature and free and total proton concentrations at each titration point were measured. Constants were determined for three of the four protonated sites and the forth one being a very low value as this site is always in the ionic form and is readily ionized in aqueous solutions	en_US
dc.language.iso	en	en_US
dc.publisher	University of Kelaniya	en_US
dc.subject	Patton and Reeder	en_US
dc.subject	Protonation constants	en_US
dc.subject	Potentiometric titrations	en_US
dc.subject	Chemical speciation modelling	en_US
dc.title	Determination of Protonation Constants for 2-Hydroxy-1-(2-Hydroxy-4-Sulpho-1-Naphthylazo)-3-Naphthoic Acid	en_US
dc.type	Article	en_US