ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Physicochemical investigation of 2-hydroxyl-1-naphthaldehyde thiosemicarbazone

R. Rusina and A. Sirota

Komensk√Ĺ University, Bratislava

 

Abstract: The yellow color of 2-hydroxy-1-naphthaldehyde thiosemicarbazone (I) in the alk. range was studied by the spectrophotometric method. It was detd. that the shift to higher pH of the absorption max. spectra of I in the visible spectral region is caused by the dissocn. of the OH group in the o-position with the formation of an anion and a conjugated system in the side chain. The value of the dissocn. const. of the OH group in the o-position was detd. by the potentiometric method. By the measurement at 20° in 40% (vol.) Me2CO, the value was calcd.: K = 4.5 × 10-10. I reacts with the metal cations Co2+, Cu2+, Ni2+, Ag+, and Hg2+ with the formation of colored asymmetric bicyclic inner complex compds. Some phys.-chem. properties of the agents can be applied in anal. chem.

Full paper in Portable Document Format: 205a366.pdf (in Slovak)

 

Chemical Papers 20 (5) 366–372 (1966)

Monday, March 20, 2023

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2023 Chemical Papers