Marker dyes from cashew nut shell extract and chloroanilines

Abstract

The extracted cashew nut shell liquid was esterified by hexanol and coupling with diazonium salt of aromatic amines, which have chlorine substituent in different positions, to obtain yellow color marker as the product. The characterization of marker dyes from both reactions were examined by Fourier Transform Infrared Spectroscopy and Nuclear Magnetic Resonance Spectroscopy. The marker dyes were added into high speed diesel and gasoline. The properties of these fuel oils were determined by ASTM test methods. The quantity and stability of marker dyes in fuel oils were measured by suitable solvent extraction and ultraviolet-spectophotometric measurement.