Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Mostafa A. Borhan El-Din"'
Publikováno v:
Dyes and Pigments. 74:458-463
The kinetics and mechanism of the oxidation of Sunset Yellow (E-110, C.I. 15985), SY, and Ponceau 4R (E-124, C.I. 16255), PR, monoazo dyes with peroxydisulphate have been investigated. The oxidation reaction of SY and PR was very slow and followed a
Publikováno v:
Dyes and Pigments. 66:161-170
Environmentally, H 2 O 2 is a friendly oxidant. It is used in the current work to oxidize and decolorize two of the direct dyes that fulfill an outstanding demand. These dyes are C. I. Direct Green 28 (14155), I , and C. I. Direct Blue 78 (34200), II
Publikováno v:
Dyes and Pigments. 57:197-210
The kinetics of oxidation of the direct dye Durazol Blue 8G with H2O2 was studied spectrophotometrically in different media. An induction period was observed at the early stages of the reaction. The slowness of the oxidation reaction was a precursor