CY3251 - CHEMISTRY FOR TECHNOLOGISTS (Syllabus) 2021-regulation Anna University

CY3251 - CHEMISTRY FOR TECHNOLOGISTS (Syllabus) 2021-regulation Anna University

CY3251	CHEMISTRY FOR TECHNOLOGISTS	LPTC

3003

OBJECTIVES: The course aims to

• Provide conceptual 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.
• Provide deep knowledge to students about various classification and properties of hydrocarbon.
• 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, instrumentat on (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 ,defoaming, spreading, water repellency.

UNIT III	OILS, FATS, SOAPS & LUBRICANTS	9

Chemical constitution, Chemical analysis of oils and fat – acid, saponification and iodine values, Definitions, determinations and signi icance. Definition, mechanism of lubrication, preparation of petrolubes, desirable characterist – vi ty, scosit ex, carbon esidue, oxidation stability, flash and fire points, cloud an pour points, aniline point. Semisolid lubricant – greases, preparation of sodium, lithi calcium le greases and uses, consistency test and drop point test.Solid lubricants – graphite and molybdenum disulphide.

UNIT IV	HYDROCARBON	9

Classification of Hydrocarbons. Aliphatic Hydrocarbons: Alkanes –l isomerism, conformations, physical, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis. Alkenes– structure of double bond, geometrical isomerism, chemical reactions: ddition of hydrogen, halogen, water, hydrogen halides, ozonolysis, oxidation. Alkynes – structure of triple bond acidic character of alkynes, addition reaction of - hydrogen, halogens, hydrogenhalides and water. Aromatic hydrocarbons - resonance, aromaticity ; mechanism of electrophilic substitution – nitration sulphonation, halogenations.

UNIT V	COLORANTS	9

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

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

• Understand and apply spectroscopic techniques for the analysis of engineering materials for their applications.
• Make use of the applications of adsorption in detergency, wetting, spreading, foaming, de- foaming, and water repellenceand separation processes.
• Analyse and estimate oils, fats, lubricants and soap for their intended applications.
• Distinguish and demonstrate the role of different types of hydrocarbon.
• Realize the chemical structures, properties and relationships of different types of dyes and their applications.

TEXT BOOKS:

1. Dara S. S., “A Text Book of Engineering Chemistry”, S. Chand & Co. Ltd., New Delhi, 12 th Edition, 2016.
2. Jain. P.C. and Monica Jain, “Engineering Chemistry”, DhanpetRai& Sons, New Delhi, 17th Edition, 2018.
3. A. Ravikrishnan, ''Chemistry for Technologists'', Sri Krishna, Hi Tech Publishing Company Pvt. Ltd. Chennai, 2015.
4. Arun Pahl and B.S.Paul , “ Advanced Organic Chemistry”, S.Chand Publishers, Third Edition , New Delhi, 2012.

REFERENCES:

1. B.K. Sharma, “Industrial chemistry”, Krishna Prakashan Media (P) Ltd, Meerut, 2014.
2. Shore J., “Colourants and Auxiliaries'', Volume 1 & 2, Wood head Publishing Ltd., 2nd Edition, 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.
5. Shikha Agarwal, “Engineering Chemistry-Fundamentals and Applications”, Cambridge University Press, Delhi, 2019.