Examination of the Conditions of Extraction of Toxic Organic Bases and of Methods of Their Determination. III. Extraction of Ion-Associates of Dibenz[b,f]-1,4-oxazepin
1994 ◽
Vol 59
(3)
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pp. 582-588
Keyword(s):
The protonation and distribution constants of dibenz[b, f]-1,4-oxazepin (CR) were measured. This substance forms stable ion-associates with Acid Red 88, extractable into chloroform. Reextraction with an aqueous phase containing basic fuchsine or safranine T brings about exchange of the CR cation for the basic dye cation. The associates so formed exhibit higher conditional extraction constants and higher molar absorptivities than the initial associates.
1998 ◽
Vol 63
(7)
◽
pp. 967-976
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1987 ◽
Vol 52
(2)
◽
pp. 322-328
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1980 ◽
Vol 45
(4)
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pp. 1221-1226
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Keyword(s):
1981 ◽
Vol 46
(8)
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pp. 1901-1905
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Keyword(s):
1991 ◽
Vol 56
(8)
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pp. 1585-1592
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Keyword(s):
2010 ◽
Vol 150-151
◽
pp. 890-894
1980 ◽
Vol 45
(11)
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pp. 3116-3129
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1992 ◽
Vol 57
(8)
◽
pp. 1647-1654
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Keyword(s):
1993 ◽
Vol 58
(2)
◽
pp. 315-319
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Keyword(s):