EXAMINATION OF THE CONDITIONS OF EXTRACTION OF TOXIC ORGANIC-BASES AND OF METHODS OF THEIR DETERMINATION .3. EXTRACTION OF ION-ASSOCIATES OF DIBENZ[B,F]-1,4-OXAZEPIN

Authors
SOUCEK J BELICKY L HAVEL J
Citation
J. Soucek et al., EXAMINATION OF THE CONDITIONS OF EXTRACTION OF TOXIC ORGANIC-BASES AND OF METHODS OF THEIR DETERMINATION .3. EXTRACTION OF ION-ASSOCIATES OF DIBENZ[B,F]-1,4-OXAZEPIN, Collection of Czechoslovak Chemical Communications, 59(3), 1994, pp. 582-588
Citations number
13
Categorie Soggetti
Chemistry
Journal title
Collection of Czechoslovak Chemical Communications → ACNP
ISSN journal
00100765
Volume
59
Issue
3
Year of publication
1994
Pages
582 - 588
Database
ISI
SICI code
0010-0765(1994)59:3<582:EOTCOE>2.0.ZU;2-6
Abstract
The protonation and distribution constants of dibenz[b,f]-1,4-oxazepin (CR) were measured. This substance forms stable ion-associates with A cid Red 88, extractable into chloroform. Reextraction with an aqueous phase containing basic fuchsine or safranine T brings about exchange o f the CR cation for the basic dye cation. The associates so formed exh ibit higher conditional extraction constants and higher molar absorpti vities than the initial associates.