Chemistry of Intermediates & Dyestuffs
Get the full GTU study material, English & Gujarati textbook PDFs, syllabus curriculum, and solved previous year question papers.
English Book & Chapters
English Book Coming Soon
We are working hard to add this material. Stay tuned for updates!
Follow on Instagram for UpdatesGTU Previous Year Papers
Papers Coming Soon
We are working hard to add this material. Stay tuned for updates!
Follow on Instagram for UpdatesChemistry of Intermediates & Dyestuffs Syllabus — Unit-wise Content
The official GTU curriculum for Chemistry of Intermediates & Dyestuffs (subject code DI04028041) as prescribed for CS-AI · Semester 4 divides the course into 5 units, covering 10 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 (DI04028041)Unit 1 Introduction to Dyestuff Chemistry
- 1.1 Era of natural dyes 1.1.1 Heena 1.1.2 Turmeric 1.1.3 Kesar 1.1.4 Alizarine from roots of madder 1.1.5 Logwood 1.1.6 Tyrian purple 1.2 Era of synthetic dyes 1.2.1 Diazotisation 1.2.2 Direct dye: Congo red 1.2.3 Synthesis of Indigo 1.2.4 Disperse dye 1.2.5 Fluorescent brighteners 1.2.6 Pigment 1.3 Nomenclature of dyes 1.3.1 Commercial naming of dyes 1.3.2 Colour index naming of dyes Program Name: Diploma Engineering Level: Diploma Branch: Textile Processing Technology Subject Code: DI04028041 Subject Name: Chemistry of Intermediates & Dyestuffs
Unit 2 Colour and Chemical Constitution
- Hyperochromic and Hypochromic effects 2.2 Auxochrome
- chromophore of colour chemistry
- colour and chemical constitutions. 2.3 Theories to explain relation between colour and chemical constitutions: 2.3.1 Witt’s theory 2.3.2 Armstrong theory 2.3.3 Baeyer’s theory 2.3.4 Nietzki’s theory 2.3.5 Watson’s theory
Unit 3 Chemistry and Synthesis of Dyestuff Intermediates
- 3.1 Primaries 3.1.1 Fractional distillation of coal tar 3.2 Reduction 3.2.1 Bechamp reduction 3.2.2 Sulphide reduction 3.2.3 Zinc reduction 3.2.4 Catalytic reduction 3.3 Hydroxylation 3.3.1 Dow process 3.3.2 Cumene process 3.3.3 Alkali fusion 3.4 Carboxylation 3.5 Oxidation 3.6 Synthesis of intermediates 3.6.1 Koch acid 3.6.2 J – acid 3.6.3 H – acid 3.6.4 Gamma acid 3.6.5 S – acid 3.6.6 Schaffer acid 3.6.7 Crocein acid 3.6.8 NW - acid
Unit 4 Synthesis of Dyes
- 4.1 Synthesis of dyes based on constitution 4.1.1 Nitro dyes (Picric acid
- Naphthol yellow – S) Program Name: Diploma Engineering Level: Diploma Branch: Textile Processing Technology Subject Code: DI04028041 Subject Name: Chemistry of Intermediates & Dyestuffs 4.1.2 Nitroso dyes (Gambine Y) 4.1.3 Azo dyes (Monoazo: Metanil yellow
- Diazo : Naphthol blue black 6B, Triazo: Direct deep) 4.1.4 Diphenylmethane dyes (Auramin G) 4.1.5 Triphenylmethane dyes (Malachite green
- Crystal violet) 4.1.6 Xanthene dyes (Rhodamine B) 4.1.7 Thiazine dyes (Methylene blue) 4.2 Synthesis of dyes based on application 4.2.1 Acid dyes (Orange II) 4.2.2 Basic dyes (Methyl violet) 4.2.3 Direct cotton dyes (Congo red) 4.2.4 Azoic dyes (Fast blue B-base and coupling component Naphthol AS) 4.2.5 Mordant dyes (Eriochrome Black A) 4.2.6 Vat dyes (Indanthrene brown RRD) 4.2.7 Reactive dyes (Procion red, Procion blue HB)
Unit 5 Environmental and Industrial Aspects
- 5.1 Overview of dye intermediates and dyestuff industries in India 5.2 Eco-friendly dye synthesis and green chemistry approaches 5.3 By-products and waste management in dye manufacturing 5.4 Non-textile uses of dyes
Study on Android App:
