Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus


IMPACT FACTOR 2018: 0.975
5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

Print
ISSN
0942-9352
See all formats and pricing
More options …
Volume 218, Issue 7

Issues

Extraction of Sodium Picrate from Water into Nitrobenzene in the Presence of Dibenzo-21-Crown-7

E. Makrlík
Published Online: 2008-05-26 | DOI: https://doi.org/10.1524/zpch.218.7.887.35727

Abstract

From extraction experiments with 22Na as a tracer, the extraction constant corresponding to the equilibrium Na+(aq) + A(aq) + L(nb) ⇔ NaL+(nb) + A(nb) taking place in the two-phase water–nitrobenzene system (A = picrate, L = dibenzo-21-crown-7; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as logKex(NaL+,A) = 1.9±0.1. Further, the stability constant of the dibenzo-21-crown-7-sodium complex in nitrobenzene saturated with water was calculated for a temperature of 25 °C log βnb(NaL+) = 7.1±0.1.

About the article

Published Online: 2008-05-26

Published in Print: 2004-07-01


Citation Information: Zeitschrift für Physikalische Chemie, Volume 218, Issue 7, Pages 887–891, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.218.7.887.35727.

Export Citation

© 2004 Oldenbourg Wissenschaftsverlag GmbH.Get Permission

Comments (0)

Please log in or register to comment.
Log in