Crystal Structure of a Methine Dye, C.I. Disperse Blue 354

Crystal structure of a methine dye, C.I. Disperse Blue 354.

Crystals of C.I. Disperse Blue 354, a commercial methine disperse dye, were grown from an ethyl acetate and the crystal structure was determined. Results show that two aromatic planes are effectively coplanar with the dihedral angle of 10.61(11) degrees. The dicyanomethylene group is slightly twisted and two n-hexyl groups tend to be separated with one alkyl group being at the level of the arom...

An outbreak of occupational textile dye dermatitis from Disperse Blue 106.

patient developed occupational dermatitis from butylene glycol in a soap (9, 10). 2 large-scale group studies, including 364 and 272 patients, give frequencies of contact allergy to 1,3-butylene glycol of 0.4% and 1.1%, respectively, of patients tested (1, 2). Although 1,3-butylene glycol has been considered a safe cosmetic ingredient and a rare contact allergen, we suggest that allergy to it w...

Blue dye, blue skin.

Decolorization and Degradation of Basic Blue 3 and Disperse Blue 56 Dyes Using Fenton Process

In this study, oxidative discoloration of Basic blue3 (B.B3) and Disperse blue56 (D.B56) dyes in synthetic textile wastewater has been studied using Fenton (Fe2+/H2 O2 ) process. The Fenton’s technique showed satisfactory color removal efficiency. The operating parameters such as concentration of Fe2+, dose of H2 O2 , initial concentration of dye, time contact, initial volume of wastewater that...

Kinetic of Disperse Dye on Compounded PET Polyethylene Terephthalate Using Hyperbranched Polymeric Additive as A Nanomaterial

This paper presents the influence of Hybrane H 1500 as a hyperbranched polymer on kinetic parameters of dyeing compounded fiber grade PET polyethylene terephthalate at boil temperature. C.I. Disperse Red 324 as a disperse dye was used for dyeing compounded fiber grade PET. The result was compared with corresponding properties of virgin PET. The dyeing rate constants and diffusion coefficients a...