Potentiometric Titration of Some Organic and Inorganic Bases with Sodium Tetraphenylborate

Phase Equilibrium in the Ternary System K2O–Al2O3–H2O at 323.15, 333.15, 343.15, and 353.15 K

“…The concentration of potassium ion (K + ) in the sample was determined by potentiometric titration with the titrant of standard tetraphenylborate using a silver metal indicator electrode. 20 In this method, the tetraphenylborate solution was added dropwise from a buret, and the potential was read and recorded. The inflection point for the potential was taken as the end point.…”

High Frequency Titrations of Silver and Thallium(I) with Sodium Tetraphenylborate

“…Crane (2, S), in a study of the potentiometric titration of negative tetraphenylborate ion with silver nitrate, found that the results obtained using sodium chloride instead of potassium tetraphenylborate as a primary standard deviate by 5.4%. Kirsten et al (7) attributed this discrepancy to the tendency of silver ion to precipitate more tetraphenylborate than that required for one valence. The standardization of silver nitrate against potassium tetraphenylborate under the conditions used in the determination was therefore recommended.…”

Direct Potentiometric Titration of Polyethylene Glycols and Their Derivatives with Sodium Tetraphenylboron

“…(4) Delahay, P., "New Instrumental Methods in Electrochemistry," p. 132, Interscience, New York, 1954. (5) Matsuda, H., Ayabe, Y., Z. Elektrochem. 59, 494 (1955).…”

“…The reason for this range will be discussed presently. The NaTPB may also be titrimetrically standardized with potassium nitrate (KNOs) or "Oxaditon" (5). Figure 1 shows some typical titration curves.…”