Conant, J. B. published the artcileSuperacid solutions. IV. Determination of the strength of weak bases and pseudo bases in glacial acetic acid solution, Recommanded Product: 9-Phenyl-9H-xanthen-9-ol, the publication is Journal of the American Chemical Society (1930), 4436-50, database is CAplus.
cf. C. A. 22, 4035. A spectrophotometric study has been made of the acid-base equilibrium in solutions of crystal violet in buffered glacial AcOH solutions The extinction coefficient was measured at intervals of 10 mμ from 470 to 680. Data are given for the fundamentals chosen for the violet, green and yellow forms; also for the dissociation constants of crystal violet from spectrophotometric data at 25° in urea-H2SO4, urea-HClO4 and acetoxime-H2SO4 buffers. The change of pK’1 for crystal violet with change in ionic strength is shown in the form of curves; this effect is very marked; the total change of pK’1 from the limiting value at μ = 0 to √μ = 0.5 is about 2.6 pH units. In the more concentrated solutions there are sp. effects depending on the nature of the neutral salt. These effects are larger than the corresponding effects in H2O because of the low dielec. constants of AcOH; the natures of both the cation and anion of the neutral salt are important. An electrometric study of weak bases and pseudo bases in glacial AcOH reveals the large effect of changing ionic strength, also noted in the spectrophotometric study. The following apparent pK’ values for pseudo bases at 25° in glacial AcOH are reported (bases in 0.05 M solution titrated with H2SO4 μ = 0.2 with Me3NHSO3C6H4Ne-p): Ph3COH -1.47; C10H7CPh2OH -1.25; (MeOC6H4)2CHOH -1.14; MeOC6H4CPh2OH -0.59; phenylxanthanol 1.91; dinaphthoxanthanol. 2.40 MeOC6H4)3COH, 2.56. The effect of added H2O on the apparent constants of a number of weak pseudo bases is reported. A method is outlined for obtaining significant values for the relative basicity of the “halochromic carbinols.”
Journal of the American Chemical Society published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Recommanded Product: 9-Phenyl-9H-xanthen-9-ol.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts