Synthetic Colourants
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Synthetic Colourants Syllabus — Unit-wise Content
The official GTU curriculum for Synthetic Colourants (subject code 3153620) as prescribed for Chem. Tech. · Semester 5 divides the course into 3 units, covering 30 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3153620)Unit 1 Azo Dyes
- Methods of diazotisation
- Diazo coupling
- Acid azo dyes: Methyl orange
- Methyl red, Orange dyes
- Fast red A, Metanil yellow etc
- Basic Azo dyes: Aniline yellow
- Butter yellow
- Chrysodine G, Bismark brown
- Acid red
- Direct or Substantive Azo dyes: Congo red, Direct deep black
- Rosanthrene O, Procion Dyes
- Ramazol Mordant Azo Dyes: Diamond black F, Chromotrope 2B, Erichrome Black T, Erichrome Red B etc
Unit 2 Reactive Dyes
- Chemical Constitution of Reactive Systems
- Dye Classes (Chromogens) for Reactive Dyes
- Synthesis & applications
- Chemistry of reactive dyes with special emphasis on environmental issues
- High fixation
- low salt
- highly substantive reactive dyes
- Neutral fixing & acid fixing reactive dyes
- Heterocyclic reactive systems & multifunctional reactive dyes
- Reactive basic dyes
Unit 3 Disperse Dyes
- Chemical Constitution: Azo Dyes
- Anthraquinone Dyes
- Other Chromophores
- Synthesis & applications
- Chemistry of disperse dyes with special emphasis on environmental safety
- Dispersant free disperse dyes
- Replacement of anthraquinone disperses dyes – Heterocyclic diazo & coupling components
- Styryl & extended styryl disperse dyes 10 Subject Code: 3153620 w.e.f
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