CMP100 ✫ General guidelines ✫ Safety ✫ Schedule ✫ Grading Coordinator: Dr. Janakiram Vaitla Department of Chemistry MS-626, 5th floor E-mail: vaitla@chemistry.iitd.ac.in Before enter into the lab You should have Lab coat, Shoes, safety goggles Laboratory Manual Laboratory Handout Booklet: Basic Stationary items and calculator You should Read the experimental procedure Be prepared for the lab quiz (You can get these items from the scoops) List of Experiments Experiment Number Name of the Experiment E1 Preparation of a nickel complex [Ni(NH3)6]Cl2 and estimation of nickel by complexometric titration E2 Potentiometric titrations using a pH meter E3 Degree of dissociation and titration by conductometry E4 Chemical Kinetics – acid hydrolysis of ethyl acetate E5 Nylon synthesis and Chromatography E6 Preparation of benzimidazole E7 Acetylation of ferrocene and analysis by thin layer chromatography E8 Absorption spectrum of a series of conjugated dyes – application of the Particle-in-a-Box concept E9 Analysis of metal complexes using UV-VIS spectrophotometry – Crystal Field Theory at Work Instructors for CMP100 Morning Monday Prof. Tanmay Dutta Afternoon Prof. Pramit K Prof. Jai D Singh Prof. Sayantan Paria Chowdhury Tuesday Prof. Nidhi Jain Prof. Priyanka Verma Prof. Kuntal Manna Prof. Soumik Siddhanta Wednesday Prof. Sudipta Raha Roy Prof. Ritu Gupta Prof. Anil J. Elias Prof. Sajesh P. Thomas Thursday Prof. N G Ramesh Prof. Narayanan D Prof. M. Ramu Yadav Prof. Biju Kurur Friday Prof. Priyanka Verma / MS Prof. Ritu Gupta Prof. Ravi P Singh Prof. Dibyajyoti Ghosh TA’s for CMP100 Group No Entry number Name Email 1 2020CYZ8035 ANUBHA RAJPUT cyz208035@chemistry.iitd.ac.in 2 2020CYZ8044 Daksh Singh Davas cyz208044@chemistry.iitd.ac.in 3 2020CYZ8045 DEEKSHA GOPALIYA cyz208045@chemistry.iitd.ac.in 4 2020CYZ8056 PARAS KALRA cyz208056@chemistry.iitd.ac.in 5 2020CYZ8660 NITIKA GARG cyz208660@chemistry.iitd.ac.in 6 2020CYZ8662 RAJU SEN cyz208662@chemistry.iitd.ac.in 7 2021CYZ8379 RAHUL KALITA cyz218379@chemistry.iitd.ac.in 8 2021CYZ8357 AARTI GAUTAM cyz218357@chemistry.iitd.ac.in 9 2021CYZ8358 AEJAZ UL BASHIR cyz218358@chemistry.iitd.ac.in 10 2021CYZ8359 AJAY cyz218359@chemistry.iitd.ac.in 11 2021CYZ8361 ANIRBAN DATTA cyz218361@chemistry.iitd.ac.in 12 2021CYZ8362 ARCHITA KAR cyz218362@chemistry.iitd.ac.in 13 2021CYZ8364 ATHUL S cyz218364@chemistry.iitd.ac.in 14 2021CYZ8365 AYISHWARYA DUTTA cyz218365@chemistry.iitd.ac.in 15 2021CYZ8367 BIBHUTI BHUSAN DAS cyz218367@chemistry.iitd.ac.in 16 2021CYZ8368 DEEPIKA cyz218368@chemistry.iitd.ac.in 17 2021CYZ8370 HARIBRAHMA SINGH cyz218370@chemistry.iitd.ac.in 18 2021CYZ8372 IPSHITA MAJUMDAR cyz218372@chemistry.iitd.ac.in 19 2021CYZ8375 cyz218375@chemistry.iitd.ac.in 20 MRITYUNJAY KUMAR JHA 2021CYZ8378 POORVI GUPTA cyz218378@chemistry.iitd.ac.in Lab staff for the CMP100 Technical laboratory staff members: Mr. Virender Sharma Mr. Alok Kumar Mr. Binit Mr. Sanjay Mr. Himanshu Schedule 1st week: General instructions to be given by the faculty member/instructor regarding the course, laboratory manual, lab reports, quizzes, grading system, safety in the laboratory, and distribution of marks. Weeks: 2 - 10: Experiments 1-9. Week 11: Repeat turn for the missed experiments (due to medical reasons with proper documentation). (Medical documentation proof from IIT Delhi hospital is only allowed unless you are out of Delhi) There will be a common quiz held at the same time for all the groups near the end of the semester at a pre-announced date and time. Apart from this common one, quizzes/viva will be conducted during the lab periods based on the discretion of the faculty instructor of that specific group. (The final notification about the quiz schedule will be intimated separately). The distribution of marks will be as follows: Laboratory test (Week 12): 25 Common (Major) written quiz (Week 13): 20 (Note: Experiment 10 also will be included in this written test) Lab Quiz (Individual to every group): 10 Lab performance: 45 (Criteria to be decided by the individual group Instructor) Each laboratory session will carry 45 marks which will be distributed for maintaining the Lab record in the form of Hand Outs, results of the experiment, adherence to the lab Safety norms, working approach in the lab, etc. Students coming late by 10 minutes or more may be penalized for up to 10 marks. In some groups faculty members might have quizzes at the beginning of every lab; hence please pay attention to the instructions to be given by the respective group Instructors. CMP 100 Lab schedule Time: Moring groups (9.00 AM to 1.00 PM) and Afternoon groups (1.30 PM to 5.30 PM) You should be present in the lab exactly on time. Undergraduate Chemistry Laboratory – LH103 LABORATORY ENTRANCE-1 The Chemistry lab is designed and constructed according to Environmental, Health, and Safety Guidelines WORKING SPACE (front view) FACULTY CABIN Microwave Oven Front View Refrigerator Xerox Machine Faculty Table LAB STAFF ROOM Inside View Front View INSTRUMENT STORAGE ROOM Instrument Cupboards Front View Instrument Cupboards Ladder REAGENT PREPARATION ROOM C h e m i a l S t o r a g e Chemicals Cabinets LABORATORY FRONT CORRIDOR Fire Hydrant Fire Extinguishers STUDENT AREA First-Aid Box Rack for Student’s Belongings EMERGENCY EXIT Emergency Exit Door-2 Ice Maker First Aid Box GENERALDISPOSAL DISPOSALAREA AREA GENERAL WORKSPACE AREAS DISCUSSION POINT – 1 (Front View) DISCUSSION POINT - 2 WORKING BENCH (Side and Front View) REAGENT BENCH (Side and Front View) GLASSWARE STORAGE DRAWER 1 AND 2 GLASSWARE STORAGE DRAWER 2 AND 3 GLASSWARE STORAGE DRAWER 4 AND 5 WEIGHING AREA AND WEIGHING BALANCE WATER BATH BENCH AND WATER BATH SETUP WASHING AREA INSTRUMENTAL FACILITIES POTENTIOMETER Electrode Stand Instrument Electrode CONDUCTOMETER Electrode Stand Instrument Electrode UV SPECTROPHOTOMETER Display Screen Cuvette Holder HEATING PLATE MELTING POINT APPARATUS MAGNETIC STIRRER OVEN ICE MAKER MACHINE GLASSWARE DRYER DISTILLATION UNIT GAS-LINE SETUP Switch Board Gas Valves Gas Supply Line Bunsen Burner VACUUM PUMP LAB RECORD LOCKERS EXPERIMENT GLASSWARES Basic instruments in the laboratory Name of basic Instruments Model pH meter Benchtop conductometer Benchtop Spectrophotometer Benchtop Oven Benchtop Water bath Benchtop Weighing balance Benchtop DW plant Benchtop Ice Machine On floor Melting point apparatus Benchtop LABORATORY SAFETY MEASURES Fire Alarm Emergency Shower Eye Washer First-Aid Box-1 Fire Extinguishers Fire Extinguishers First-Aid Box-2 Basic Laboratory Glassware burette Basic instructions * You should be completely familiar with the experiment before beginning it * Read the experimental details carefully and use the correct safe techniques demonstrated and discussed by the instructor / lab staff * The excuse that someone else is responsible for mistakes/ accidents is never acceptable in a scientific laboratory * Report any accidents immediately to your instructor or Laboratory staff members. PPE Personal Protective Equipment: What must be worn when you work in the laboratory. Eye Protection Lab Coat Long Pants x Closed Toed Shoes – no exposed skin around feet Noncompliance with safety protocols will be strictly dealt with and can even lead to expulsion from the laboratory including the award of F grade. 64 Long hair must be tied back. It is advisable to minimize the use of hair sprays and other hair products, because they are highly flammable. x x Contact lenses should never be worn in the laboratory. Be aware of the locations of the safety shower, eyewash station, fire extinguisher, first aid equipment, and the exits. Know the hazardous properties of the chemicals you are using. Specific instructions for dealing with hazardous material will be given by the instructor prior to their use. When in doubt, ask! Use only the chemicals called for in your experiment. Make sure you know what chemicals you are looking for. Many chemicals have similar names or formulas. Treat all chemicals as hazardous. GHS Symbols Usage of chemicals * Flammable liquids and toxic chemicals should be placed in specially marked bottles. Paper, broken glass etc should be disposed of in the waste disposal containers provided. Ask Lab staff, if you need any information about disposal of waste * All chemicals should be considered potentially toxic and so never taste a chemical or solution or bring eatables into the laboratory. If you are asked to smell a chemical, gently fan the vapors towards your nose. Wash thoroughly your hands with soap after every lab session before touching any foodstuff. If any chemical stain remains on your hand, use spoon to eat till the stain goes off. Safety Instructions * Never pipette out using your mouth anything unless otherwise the instructor / tutor has specifically told you to do so. x * Do not lean on the workbench while working. x x * While using ammonia, remember to keep the exhaust fans on. Safety Instructions If you have accidentally taken inside your mouth any solution, wash your mouth immediately with lots of water and contact immediately your instructor or tutor for further help. If any acid or base falls on your hand, immediately wash with lots of water and contact your tutor if there is any uneasiness. Safety Instructions While heating solutions over the flame make sure that the mouth of the vessel is not directed towards you or others working nearby. It is important to ensure that hands are washed and all protective clothing removed before leaving the laboratory. Also it is your job to ensure that your workbench is cleaned up and ready for the next group. Safety Instructions No “walkmans” and other music devices, no cellular phones. These are strictly forbidden (No Exception). Be fully alert on what you are doing and what is going on around you while working in the laboratory. Safety Instructions In all cases of accident or injury, no matter how slight, report to the instructor or Technical laboratory staff immediately. While the emphasis should be on the prevention of accidents, a high priority is placed on personal safety in the event of an accident. Lab Rules Students coming late by 10 minutes or more may be penalized for up to 10 marks. Excused Absences (a) serious illness (with medical documentation) (b) Institute-related trips (with documentation and prior approval from your lab faculty instructor) (Medical documentation proof from IIT Delhi hospital is only allowed unless you are out of Delhi) Unexcused absences from the laboratory are not allowed and “make-up” times are not permitted. Lab Rules If you miss five practicals or more without any valid reason, you will be awarded an ‘F’ grade. Moreover, students who miss the final CMP100 lab exam will be automatically given an ‘F’ grade. Lab Rules # In some groups faculty members might take quizzes at the beginning of every lab; hence please pay attention to the instructions to be given by the respective group Instructors. # Your instructor may not allow you to perform experiments, if your behavior is inappropriate. # If you do not follow lab guidelines, Your instructor can reduce your marks. Lab Instruments •Instruments in CMP100 lab are expensive. Follow the guidelines for the instrumentation. •Before handling the instruments, please pay complete attention to the lab staff briefing. •If the instrument is overheating, inform the instructor or lab staff •Do not touch electrical connections •Do not spill chemicals on the instruments •If your instrument has any issues in readings inform the instructor/ Lab staff Laboratory Handout Booklet: Graph sheet and TLC plates will be provided by lab staff Laboratory Handout Booklet: # Students are expected to submit the handout related to that experiment to their respective TAs after completing the experiment and related analysis including calculations and plotting of the graphs # On failure to submit the completed lab hand-outs within the lab hours, students will be penalized for another 5 marks # The handouts will be graded and the marks will be shown to you during the next lab turn. # Please make sure that you keep the handouts with you until the end of the semester when these need to be turned into to your lab TAs. Grading The distribution of marks for the Grading: Laboratory test (at the end of the semester): 25 Common written quiz (After the 8th Expt.): 20 Lab Quiz (Individual to every group): 10 Lab performance: 45 Each laboratory session will carry 45 marks which will be distributed for maintaining the Lab record in the form of Hand Outs, results of the experiment, adherence to the lab Safety norms, working approach in the lab, etc. Grading # Final grading is not according to Group wise # Grading is relative # Uniformity will be maintained at the end # Grading is according to the performance in the lab, regular quizzes, practical exam and major quiz (Note: your final grading is based on the group average and average of all group averages). Thus, your grading does not depend on the coordinator/instructor/TA. It entirely depends on your performance in the lab experiments and quizzes. Thank you