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- Title
Cardanol-Based Bis(azo) Dyes as a Gasoline 91 Colorant.
- Authors
Paebumrung, Pimpaporn; Petsom, Amorn; Thamyongkit, Patchanita
- Abstract
Novel bis(azo) dyes were successfully prepared from the coupling of either natural cardanol or its hydrogenated derivative with a series of diazotized aromatic amines and diamines. These new dyes were fully characterized by NMR, infrared and UV-visible spectroscopy and mass spectrometry. The dyes are highly soluble in a variety of common organic solvents and gasoline as a consequence of the cardanol unit. The physical properties of gasoline according to American Society for Testing and Materials standard were unaffected by the presence of the bis(azo) dye derived from 1-(4aminophenylazo)-2-naphthol at a concentration of 6 ppm and the dye showed excellent stability over a 3 month period.
- Subjects
DYES &; dyeing; SOLUTION (Chemistry); AROMATIC amines; NITROAROMATIC compounds; MASS spectrometry; GASOLINE analysis; CASHEW nuts; ORGANIC solvents
- Publication
Journal of the American Oil Chemists' Society (JAOCS), 2012, Vol 89, Issue 2, p321
- ISSN
0003-021X
- Publication type
Article
- DOI
10.1007/s11746-011-1912-y