Experimental Synthesis of Bupropion – A round bottom flask (RBF) containing m-chloropropiophenone (1.0 g‚ 5.9 mmol) dissolved in 5.0 mL dichloromethane (DCM) with 0.25 mL of 1.0 M Br2 in DCM was briefly warmed to initiate the bromination reaction. Afterwards‚ the RBF was placed in and ice-water bath and 1.0 M Br2 in DCM (6.0 mL‚ 6.25 mmol) was added dropwise while stirring. DCM was removed from the reaction by rotary evaporation. Next‚ tert-butylamine (5.0 mL‚ 47.6 mmol) and 5.0 mL of N-methylpyrrolidinone
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h. mordants ______9. Study of fighting diseases-causing germs using chemicals which attack only the germs i. sulfa drugs ______10. A perspiration deodorant which consist of talcum‚ cornstarch and salicylic acid j. aniline k. lipstick II. ENCIRCLE THE WORD THAT DOES NOT BELONG TO THE GROUP (2 pts each) 1. rubber‚ teflon‚ PVC‚ sugar 2. sodium nitrite‚ sodium sulfate‚ sodium benzoate‚ penicillin 3. erythromycin‚ depilatories‚ streptomycin‚ chloramphenicol
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Unit 2 – Disposition of Toxicants Ch 5 – Absorption‚ Distribution‚ and Excretion of Toxicants Ch 7 - Toxicokinetics Chapter 5 Absorptions‚ Distribution‚ and Excretion of Toxicants © The McGraw-Hill Companies‚ Inc‚ 2011 Factors Affecting Disposition • If fraction absorbed or rate absorbed is low‚ may never reach high enough concentration to cause toxicity • Concentrated in a tissue other than the target organ‚ thus decreasing toxicity • Biotransformation may result in formation of less toxic
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CHEMISTRY (Theory) Time allowed : 3 hours General Instructions: (i) All questions are compulsory. Maximum Marks : 70 (ii) Marks for each question are indicated against it. (iii) Question numbers 1 to 8 are very short-answer questions and carry 1 mark each. (iv) Question numbers 9 to 18 are short-answer questions and carry 2 marks each. (v) Question numbers 19 to 27 are also short-answer questions and carry 3 marks each. (vi) Question numbers 28 to 30 are long-answer questions and carry 5 marks
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Clothing is a big part of Mexico’s culture. Before the U.S influenced Mexico’s clothing‚ it was unique and everyone had there own style. Traditions influence what clothing is to be worn such as during celebrations many important pieces are worn. Celebrations including birthdays‚ weddings‚ and parties men commonly wear Sombreros. A traditional garment that women wear is a Huipil. A Huipil is a cotton blouse that usually has a floral print embroidered on it and is wide with a low cut frame. A type
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Sulfa Drugs: Preparation of Sulfanilamide Introduction The purpose of this experiment is to prepare sulfanilamide from p-Acetamidobenzenesulfonyl chloride. This will be done using reflux‚ vacuum filtration‚ and melting point determination. Experiment Scheme6 Figure 1. Reaction equation.6 A hot water bath was prepared in a fume hood using a 250-mL beaker. 2.5 g of p-acetamidobenzenesulfonyl chloride was placed into a 50 mL Erlenmeyer flask and 11 mL of dilute ammonium hydroxide solution
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FILIPINO CHEMISTS 1.) William Padolina William Padolina‚ Secretary of the Department of Science and Technology‚ is a man of exceptional vision who sees clearly the whole socio-economic panorama unfolding and understands the implications of the crests and troughs in the pre- millenium landscape. The contributions of William Padolina in chemistry include research into the derivatives of coconut fatty acids. He is also well known for his many awards and years teaching. 2.) Clara-Lim Sylianco
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derived from it. [E] Steel is less expensive to manufacture than iron. [C] steel. [C] demolished and replaced with new highways. [B] There were more efficient‚ powerful engines. [E] all of these [C] transcontinental railroads. [D] taconite. [E] aniline dyes. [B] Steel produces more pollution when manufactured. [D] Steel is easier to manufacture. 6. The chemical dye industry hurt tropical nations such as India because [A] of those nations’ textile industries. [B] Indians and other tropical peoples
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Organic Chemistry II Laboratory (ABCT357/ABCT3757) Lab Manual 2014-2015 Lee Hang Wai‚ Alston (alston.lee@polyu.edu.hk) Dr. Lee Cheng Hao‚ Samuel (chenghao.lee@polyu.edu.hk) Organic Chemistry II Laboratory (ABCT357‚ ABCT3757) (Group one) Contact: Alston Lee (alston.lee@polyu.edu.hk) Tuesday 8:30-11:30 ‚ Laboratory: Y1315 Lab supporting staffs: YK Au / Kan Chan/Arnold Demonstrators: Dr. Samuel Lee‚ Alston Lee‚ Fu Wai Chung‚ Guo Shuai‚ Yuen On Ying‚ Sep 16 Tue Acetylation of α-D-glucopyranose (Expt
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TITLE OF PRJECT WORK STUDIES ON THE PRODUCTION OF QUALITY GARMENTS LEATHER FROM CALF SKIN Project Supervisor Prof.Dipl.-Ing. Mathias Paas Faculty of Textile and Clothing Technology Hochschule Niederrhein Mönchengladbach‚ Germany. Participant Md.Saiful Islam Matriculation No-871349 Master Management of Textile Trade and Technology ACKNOWLEDGEMENT The preparation of the garments leather is very interesting and sensitive issue. I tried my best to provide valuable information to
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