CY3252 - CHEMISTRY FOR TEXTILE TECHNOLOGISTS (Syllabus) 2021-regulation Anna University

CY3252 - CHEMISTRY FOR TEXTILE TECHNOLOGISTS (Syllabus) 2021-regulation Anna University

CY3252	CHEMISTRY FOR TEXTILE TECHNOLOGISTS	LPTC

3003

OBJECTIVES: The course aims to

• Gain proper understanding on spectroscopic and surface analytical techniques.
• Impart knowledge to students on the chemistry of surface and interfaces.
• Make students well versed on the chemical analysis of oils, fats, soaps & lubricants .
• Firmly establish a sound understanding on the student’s mind about chemicals and auxiliaries.
• Familiarize students with the identification and characteristics of dyes and their applications.

UNIT I	SPECTROSCOPIC TECHNIQUES	9

Spectroscopy: Electromagnetic spectrum - absorption of radiation - electronic, vibrational and rotational transitions. Width and intensities of spectral lines. Flame photometer, Atomic absorption spectroscopy, UV- Vis, IR spectroscopy, Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) - principles, instrumentation (Block diagram) and applications.

UNIT II	CHEMISTRY OF INTERFACES	9

Interface region-curved interfaces-thermodynamics of surfaces - Surface film on liquids- Adsorption of gases on Solids-adsorption isotherms – types. Applications of adsorption studies- detergency, wetting, foaming , de foaming, spreading, water repellency.

UNIT III	WATER TECHNOLOGY	9

Water: Sources and impurities; Significance and estimation (only mention of methods) of - turbidity, colour, pH, acidity, alk ty, ha ess, solids, orid esidual chlorine, sulphates, fluorides, phosphates, iron and manganese, DO, BOD, COD, nitrogen, grease, volatile acids. Treatment of water: Zeolites process and ion exchange demineral zation; Desalination of water: Reverse osmosis and Electro dialysis; Municipa ater treatment: Primary treatment and Disinfection (UV, Ozonation, break-point chlorination).

UNIT IV	OILS, FATS, SOAPS & LUBRICANTS	9

Chemical constitution, Chemical analysis of oils and fats – acid, saponification and iodine values, Definitions, determinations and significance. Definition, mechanism of lubrication, preparation of petrolubes, desirable characteristics – viscosity, viscosity index, carbon residue, oxidation stability, flash and fire points, cloud and pour points, aniline point. Semisolid lubricant – greases, preparation of sodium, lithium, calcium and axle greases and uses, consistency test and drop point test. Solid lubricants – graphite and molybdenum disulphide.

UNIT V	CHEMICALS AND AUXILIARIES	9

Estimation of available chlorine in hypochlorite bleach liquor. Determination of strength of hydrogen peroxide. Colorants - Theory of colour and constitution: chromophore and auxochrome, bathochromic and hypsochromic shift, classification of dyes based on application and composition. Chemistry of azo dye – synthesis of Methyl red, Methyl orange, Congo red, phenolphthalein, fluorescein and eosin

TOTAL : 45 PERIODS

COURSE OUTCOMES : At the end of the course, the students will be able to:

CO1 : Understand and apply spectroscopic techniques for the analysis of engineering materials for their end use applications.
CO2 : Make use of the applications of adsorption in detergency, wetting, spreading, foaming, de- foaming, and water repellence and separation processes.
CO3 : Analyse and estimate oils, fats, lubricants and soap for their intended applications.
CO4 : Distinguish and demonstrate the role of different types of chemicals and auxiliaries.
CO5 : Realize the chemical structures, properties and relationships of different types of dyes and their applications

TEXT BOOKS:

1. Dhara S. S., “A Text Book of Engineering Chemistry”, 12thEd., S. Chand & Co. Ltd., New Delhi, 2016.
2. Jain. P.C. and Monica Jain, “Engineering Chemistry”, Dhanpet Rai & Sons, New Delhi, 17th Edition, 2018.
3. Shikha Agarwal, “Engineering Chemistry-Fundamentals and Applications”, Cambridge University Press, Delhi, 2019.

REFERENCES:

1. B.K. Sharma, “Industrial chemistry”, Krishna Prakashan Media (P) Ltd, Meerut, 2014.
2. Shore J., “Colourants and Auxiliaries: 2nd Edition, Volume 1 & 2, Wood head Publishing Ltd., 2002.
3. Shenai V. A., “Chemistry of Dyes and Principles of Dyeing”, Sevak Publications, Mumbai, 1995.
4. Trotman E. R., “Dyeing and Chemical Technology of Textile Fibres”, B.Y Publishing Pvt. Ltd., New Delhi, 1994.