English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Meas urements are rf' ported for t be ionizat ion constant and for r elated thermodynamic qua ntities from 0° to 60° C for 5-5 '-diethylbarbituric acid . Two series of solutions corresponding to molal ratios of barbituric acid:sodium barbiturate :sodium chloride (or iodide) of 1:0.5 :l.667, 1 :1 :l.667, and 1: 2 :l.667 were invest igated. The values obtained for the ionization constant of the acid using t hese t hree ratios of acid to sodium salt and two ty pes of refere nce e lectrodes were found to agree 'within the experimental error of t he mea,surements. Two other series of solutions in which both the ratio and t he concentration of t he buffer materials were maintained a~ a fixed value and t hat of t he halide ion was diminished were also St udied. The e ffect of sodium iodide on the pJ{' of t he buffers was normal, whe reas t hat for t he sodium chloride was anomalOUS but could be explained in terms of a, demonstrated interaction at low co ncentratio ns of sodium chloride, betwee n the soluble ba.rbiturate ion and the silversilver-chloride electrode used in the cell. The variation of pK for 5-5 ' -diethylbarbituric acid with the absolute temperature T, where T = 273 .16 + tOC, can be expressed by t he equati on

Ionization constant of 5-5'-diethylbarbituric acid from 0-degrees to 60-degrees-C