Acid-Base Equilibria in Glacial Acetic Acid. III. Acidity Scale. Potentiometric Determination of Dissociation Constants of Acids, Bases and Salts1

1956 ◽  
Vol 78 (13) ◽  
pp. 2974-2979 ◽  
Author(s):  
S. Bruckenstein ◽  
I. M. Kolthoff
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Dissociation Constants ◽  
Potentiometric Determination ◽  
Acid Base ◽  
Acidity Scale

Potentiometric determination of equilibrium constants of bases and perchlorates of protonated bases in glacial acetic acid using Superquad

2003 ◽  
Vol 375 (6) ◽  
pp. 826-830
Author(s):  
Giaan A. Álvarez-Romero ◽  
Alberto Rojas-Hernández ◽  
Guillermo A. Vázquez ◽  
Ma. Teresa Ramírez-Silva
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Equilibrium Constants ◽  
Potentiometric Determination

Potentiometric determination of aqueous dissociation constants of flavonols sparingly soluble in water

Talanta ◽  
2008 ◽  
Vol 74 (4) ◽  
pp. 1008-1013 ◽  
Author(s):  
José M. Herrero-Martínez ◽  
Carme Repollés ◽  
Elisabeth Bosch ◽  
Martí Rosés ◽  
Clara Ràfols
Keyword(s):  
Dissociation Constants ◽  
Potentiometric Determination

Reverse Phase Liquid Chromatographic Determination of Chlorophacinone and Diphacinone in Bait Formulations

1982 ◽  
Vol 65 (4) ◽  
pp. 927-929
Author(s):  
Brian R Bennett ◽  
Gregory S Grimes
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Chromatographic Determination ◽  
Reverse Phase ◽  
Target Concentration ◽  
External Standard ◽  
Liquid Chromatographic Determination ◽  
Phase Liquid ◽  
Liquid Chromatographic

Abstract Chlorophacinone and diphacinone are extracted at the 0.005% level from grain or paraffinized baits with glacial acetic acid. The target concentration is 0.01 mg/mL. The filtered supernate is chromatographed on a Partisil PXS ODS10/25 liquid chromatography column with premixed and degassed glacial acetic acid-tetrahydrofuran-water (14 + 2 + 9) and detected at 288 nm. The concentration is calculated by using an external standard. The recovery from spiked samples averaged 96.6% for both analytes. The response is linear from 0.001 to 0.040 mg/mL. The coefficient of variation of within-day replicates ranged from 1.1 to 2.5%.

Method for the accurate determination of specific rotation. Specific rotation of valine and leucine

1969 ◽  
Vol 47 (15) ◽  
pp. 2739-2746 ◽  
Author(s):  
J. C. MacDonald
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Optical Rotation ◽  
Accurate Determination ◽  
Computer Calculation ◽  
Specific Rotation ◽  
Best Fit

The optical rotation of various concentrations of L-valine and L-leucine, dissolved in glacial acetic acid, or 5 or 6 M HCl, was measured with a photoelectric polarimeter at the nominal wavelengths 589, 578, 546, 436, and 365 nm and temperatures of 20, 25, and 30 °C. The specific rotation for any one wavelength, solute, and solvent could be defined by the equation [α]λT = A(1 + D(T − 25)) + BC, where T is temperature in °C, C is concentration in grams of solute per 100 ml of solution, and A, B, and D are constants. The best fit values of the constants were determined by computer calculation and are listed. Constants are also given for calculating a specific rotation based on grams of solute per 100 g of solution.

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