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Metal complex dyes are an important class of dyes branch , azo metal complex dyes , the entire metal complex dyes , regarded as the most important , mainly for protein fibers ( wool , silk ) and polyamide fiber dyeing. Traditional azo metal complex dyes containing chromium , drilling and other heavy metal ions in the synthesis of dyes and dyeing process to produce large amounts of toxic waste , and serious harm to the ecological environment of the surrounding water systems . Since the 1980s , the countries of the heavy metal ions Cr textiles 3 Co 2 content strictly limited ; same time , much due to the price of iron , aluminum salts lower than the chromium salt and a cobalt salt , therefore, the development of new environment-friendly complex dyes of the azo iron aluminide having significance . This thesis Select 1 - chlorophenyl-3 - methyl-5 - pyrazole ketone , o- chloro cetoactanilide 1 - between sulfonylamino -3 - methyl-5 - pyrazole ketone as a coupling component , respectively. 3 - amino-4 - hydroxyphenyl sulfonamide , 2 - amino-4 - chlorophenol , 2 - amino-5 - nitrophenol diazo component reaction , synthesis of 4 for metal Complex Dyes synthesis parent dye and generate 20 the neutral azo iron , aluminum and rare earth metal complex dyes with different complexing agent reaction . Using infrared spectroscopy , UV-visible absorption spectroscopy , and electrospray ionization mass spectrometry and other means , the structure identification and analysis of the synthesis of metal complex dyes . This thesis is a detailed study of the conditions of the reaction system in the complex reaction . Of metal complex dyes of the synthetic 1:2 azo iron reaction system pH value between 7.5 to 8.5 , the reaction temperature at 75 ~ 80 ℃, Metal Complex Dyes yield of 85 % . UV - visible spectroscopy , qualitatively confirm the structure of the complex dyes , the results showed that the maximum absorption wavelength λmax of the azo metal complex dyes between 392nm ~ 500nm , respectively , expressed as a brightly-colored yellow and red . Atmospheric pressure electrospray ionization mass spectrometry of the synthetic part of Metal Complex Dyes , soft ionization technology to accurately measure the molecular weight of the compounds in the series , which confirmed the molecular formula .
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