Considerations on the Colorimetric Determination with Dye as a Weak Acid-Weak Base Reaction.
نویسندگان
چکیده
منابع مشابه
Formulating Buffered Dissolution Media for Sparingly Soluble Weak Acid and Weak Base Drug Compounds Based on Microenvironmental pHo Considerations
The theoretical framework for dissolution of weak acid and weak base drug compounds in buffered media is well established. Therefore, this article is intended to provide a review of this framework and apply it to formulate buffered dissolution media based on ionic equilibrium conditions within the diffusion layer at the solid–liquid interface. The pHo in the microenvironment is identified as a ...
متن کاملAre the weak reaction channels really weak?
It has been demonstrated experimentally in many systems that the fusion barrier between two nuclei does not have a unique value but rather a weighted distribution Dfus of heights. The measurements of the barrier distributions are the long lasting project of our group. Dfus can be determined directly from fusion excitation function measurements [1]. There is also an alternative method of its det...
متن کاملIntervesicular exchange of lipids with weak acid and weak base characteristics: influence of transmembrane pH gradients.
Transmembrane pH gradients have previously been shown to induce an asymmetric transmembrane distribution of simple lipids that exhibit weak acid or basic characteristics (Hope, M.J. and Cullis, P.R. (1987) J. Biol. Chem. 262, 4360-4366). In the present study we have examined the influence of proton gradients on the inter-vesicular exchange of stearylamine and oleic acid. We show that vesicles c...
متن کاملThe Chemoselective Fischer’s Synthesis of Indolenine Derivatives By iso-Butyric Acid As A Weak Organic Acid Catalyst
Iso-butyric acid as a new, simple, and expensive solvent/catalyst was successfully used for the chemoselective Fischer’s synthesis of indolenines derivatives 3a-r by one-pot condensation reaction of various phenylhydrazines 1a-e with the substituted acetophenones 2a-c at reflux conditions. In this protocol, all products 3a-r were obtained in high yields and short reaction time. The structures o...
متن کاملAt the water's edge: nitric acid as a weak acid.
Eric S. Shamay,† Victoria Buch,‡ Michele Parrinello,§ and Geraldine L. Richmond*,† Department of Chemistry, UniVersity of Oregon, Eugene, Oregon 97403, The Fritz Haber Institute for Molecular Dynamics, The Hebrew UniVersity, Jerusalem 91904, Israel, and Computational Science, Department of Chemistry and Applied Biosciences, ETH Zurich, USI Campus, Via Giuseppe Buffi 13, CH-6900 Lugano, Switzerland
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1958
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.6.571