## Abstract It is shown that the determination of apparent pK‐values of aliphatic dicarboxylic acids in the nonaqueous solvent systems methylcellosolve/water and dimethylformamide/water by a previously described micromethod yields thermodynamically undefined values, which however show the same rela
Zur Mikrotitration organischer Verbindungen: Teil VII: Vollautomatische Mikrotitrationsanlage zur Bestimmung von scheinbaren Dissoziationskonstanten
✍ Scribed by W. Simon; E. Heilbronner
- Publisher
- John Wiley and Sons
- Year
- 1957
- Tongue
- German
- Weight
- 816 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Durch saure Hydrolyse des Antibioticums Echinomycin wurden je 1 Rlol ,,unnatur.liches" D-Serin und L-Alanin erhalten (s. auch 2") u. Ga). Die alkalisclie Hydrolyse lieferte neben ungefahr 1 Mol Amm o n i a k 1 Mol C h i n o x a l i n c a r b o n s i i u r e -( 2 ) . Die letztere Verbindung wurde zurn ersten Ma1 als Bestandteil eines Naturstoffes nachgeaicsen.
Organisch-chemisches Laboratorium der Eidg. Technischen Hochschule, Zurich.
📜 SIMILAR VOLUMES
## Abstract Apparent pK‐values have been determined for 56 aromatic acids in the solvent system methylcellosolve (80 wt.‐ %)/water (20 wt.‐ %) with a previously described fully automatic titration apparatus. The validity of the __Hammett__ equation was tested and found to express the experimental d
## Abstract Apparent pK‐values have been determined for benzoic acid, __trans__‐cinnamic acid, picric acid, o‐chloro‐benzoic acid, p‐nitro‐phenol, quinine, brucine, sym‐diphenyl‐guanidine, 1, 2, 3‐triphenyl‐guanidine and (−)‐ephedrine in the solvent systems methylcellosolve/water and dimethylformam