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Chemistry Laboratory XIV(A) | Chemistry

Chemistry Laboratory XIV(A)

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Paper Code: 
25DCHY616(A)
Credits: 
02
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

This course will enable the students to

explore the principles of green chemistry and how they can be applied to designing chemical syntheses, develop critical thinking and problem-solving skills through experiments that promote sust(ainable practices.

Course Outcomes: 

Course

Learning Outcome

(at course level)

Learning and Teaching Strategies

Assessment Strategies

Course Code

Course

title

 

25DCHY616(A)

 

 

Chemistry Laboratory XIV(A)

(Practical)

 

CO146:  Integrate green chemistry principles and develop proficiency in sustainable synthesis methodologies to minimize waste and environmental impact.

CO147: Compare the advantages of green procedures over conventional synthesis.

CO148: Compile and report the results efficiently, and develop communications skills.

CO149: Contribute effectively in course-specific interaction.

Approach in teaching:

Power point presentation, laboratory instructions and demonstrations.

 

 

Learning activities for the students:

Peer learning, hands-on-learning, interpretation of data, record

writing and learning through virtual labs.

Conduction of experiments, lab records, viva voce.

 

 

 

Unit I: 

· Safer starting materials

Ø Preparation and characterization of nanoparticles of copper/silver using tea leaves.

· Using renewable resources

Ø Preparation of biodiesel from vegetable/ waste cooking oil.

· Minimizing waste

Ø Acetylation: Acetylation of aniline/salicylic acid.

Ø Nitration: Preparation of 4-nitrosalicylic acid

·  Use of enzymes as catalysts

Ø Benzoin condensation using thiamine hydrochloride as a catalyst instead of cyanide.

·  Avoiding Harmful Solvents:

Ø Diels-Alder reaction between furan and maleic acid

Ø Aldol condensation: Synthesis of dibenzal propanone

Ø Rearrangement: Benzil-benzilic acid rearrangement

Ø Pechmann condensation for coumarin synthesis: clay catalysed solid state synthesis of 7-hydroxy -4- methyl coumarin

Ø Nitration: Preparation of 4-nitrosalicylic acid

·  Alternative sources of energy

Ø Solvent free, microwave assisted ammonium formate-mediated Knoevenagel reaction

Ø Photoreduction of benzophenone to benzopinacol in the presence of sunlight.

l Inorganic preparations (green methods)

Ø Preparation of manganese(III) acetylacetonate

Ø Preparation of iron(III) acetylacetonate

 

 

Essential Readings:

 

1. Green Chemistry: Theory and Practice. P.T. Anastas and J.C. Warner. Oxford University Press, 1998.

2. Greener Approaches To Undergraduate Chemistry Experiment; Kirchoff, M. & Ryan, M.A.  American Chemical Society, Washington DC, 2002.

3. Green Chemistry Experiments: A monograph; Sharma, R.K.; Sidhwani, I.T. & Chaudhari, M.K. I.K., International Publishing House Pvt Ltd. New Delhi, 2012.

 

Suggested Readings:

 

1. Introduction to Green Chemistry, Tinnes and; (Ed; Ryan, M.A., American Chemical Society, Washington DC, 2002.

2. Real world cases in Green Chemistry; Cann, M.C. & Connelly, M. E., American Chemical Society, 2008.

 

e-Resources:

 

1. https://faculty.ksu.edu.sa/sites/default/files/green-chem.pdf (all the experiments except nanoparticles preparation)

2. https://www.researchgate.net/publication/315976417_PRACTICAL_APPROACH_TO_GREEN_CHEMISTRY( Rearrangement, Nitration, aldol condensation)

3. https://pubs.rsc.org/en/content/articlelanding/2022/na/d1na00509j (nanoparticles of copper/ silver using tea leaves)

Scheme of Examination

 

The duration of examination will be 5 hrs.

The following exercise will be set in the examination

 

Synthesis (any two) 58 marks

Viva 12 marks

Total 70 marks

 

Synthesis  

Students will be allotted two synthesis of 29 marks each. The yield, crystallization and recording of melting point will be given due consideration while awarding marks.

Viva

Oral questions shall generally be asked over the work assigned to the candidate. The purpose is to find out as to what extent the candidate has understood the basic principles.

 

 

 

Academic Year: