"Proton nmr of eugenol" Essays and Research Papers

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    Proton Case Study

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    Lagoon Selatan‚ Bandar Sunway‚ 46150 Selangor Darul Ehsan‚ Malaysia. E-mail: jane.tong@ monash.edu Proton: Its rise‚ Fall‚ and Future Prospects For Dato’ Haji Syed Zainal Abidin Tahir (Syed Zainal‚ hereafter)‚ Managing Director of Proton‚ recent headlines such as “Auto Sector Faces Numerous Challenges” and “European Carmakers Zoom in”1 were simply reminders of the challenges his company faced. Proton had been troubled by its declining share of the domestic auto market (Exhibit 1) and consequent dwindling

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    Clove oil contains two basic compounds: eugenol and acetyleugenol. As a result of Dalton’s Law and Raoult’s Law‚ both of these substances can be removed from the cloves with a steam distillation. Eugenol is polar due to the acidic hydroxyl (OH) group‚ but acetyleugenol is not polar. As a result‚ they can be separated by extraction from a 5% aqueous NaOH solution. Acetyleugenol will dissolve in the organic CH2Cl2 layer‚ while eugenol remains in the aqueous base layer as a phenoxide

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    Introduction Eugenol is a naturally occurring chemical that has medical applications such as its use as a natural dental anesthetic. It can be extracted from cloves by using the method of steam distillation. The extracted compound will then be separated from the water using methyl chloride‚ which will then be evaporated using a rotary evaporator leaving only the essential oil‚ Eugenol. IR spectroscopy will be used to determine the structure of the extracted compound. Results and Discussion Four

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    aromatic compound‚ which is identified by thin layer chromatography (TLC). Eugenol is widely used in dentistry‚ due to its analgesic‚ antiseptic balsamic qualities. It is ideal for curative for pulp hyperemia (the soft‚ sensitive substance underneath the enamel and dentine of a tooth) and pulp its. In dentistry eugenol is also used to cover cavities‚ fill canals‚ etc. It also keeps food fresh and kills off bacteria and viruses. Eugenol helps keep meat fresh and prevents stomach upset‚ diarrhea‚ and wound

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    Isolation and Identification of Eugenol: The Fragrant Component of Cloves *Adri‚ Kiersten Jayne R.‚ Aguinaldo‚ Samuel Jr. Group 2 Department of Chemistry‚ College of Science University of Santo Tomas‚ España‚ Manila 1008 Abstract. In this experiment‚ the primary objective was to isolate eugenol from cloves. An amount of 30 grams of dried cloves and 300 mL of water was distilled over a flame for over 2 hours. The distillate underwent extraction with dichloromethane‚ water and sodium hydroxide

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    Proton Holdings Berhad

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    COURSEWORK 1 – INDIVIDUAL Year ONE/2013 MONTH SEPT 2013 Subject MKT2533 UNDERSTANDING MARKETS AND CONSUMERS Weight 25% Submission Date WEEK 8 REGULATIONS A. Late Submission A 10% deduction per day of total coursework marks (excluding weekends and public holidays). Late submission between 5 to 10 days‚ results in a 50% deduction of total coursework marks. Late submission past 10 days results in an automatic 0% for coursework and the student will

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    Discussion & Error Analysis: By examining the unknown alcohol’s H NMR spectra‚ it can be deduced that the alcohol is 1-(3-methoxyphenyl)ethanol. There are three peaks that have a shift of ~7.0-7.5‚ one with integration values of 1‚ 2‚ and 1.This shows that the alcohol is a meta-substituted benzene ring. The singlet peak with a chemical shift of~ 4.7 ppm with an integration of 1 is from the hydrogen on the OH group. The peak at ~ 1.7 ppm corresponds to the hydrogen of the carbon that is attached

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    Experiment 4: Isolation of Essential Oils from Eugenol Background: Anyone who has walked through a forest or who enjoys the variety of fragrances that flowers have to offer knows that many plants and trees have their own distinctively pleasant odors. These odors are due to the volatile essential oils‚ many of which have been prized commodities since ancient times. If a list of commercially important essential oils was compiled the list would exceed 200 essential oils. Thyme‚ garlic‚ peppermint

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    M. S. Ntamila and A. Hassanali University of Dares Salaam P.O. BOX 35061 Tanzania kolation of Oil of Clove and Separation of Eugenol and Acetyl Eugenol . An instructive experiment for beginning chemistry undergraduates chloride‚ and hydroxamic ester tests‚ and the preparation of the henzovl derivative of eupenol. Finally‚ ir spectra of the two components are examined‚ and the information ohtained comoared with that from chemical tests. Practical Detalls Crush about 30-35 g of cloves with pestle

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    the threats. As a Government Linked Company‚ Proton is secured in term of financial capabilities. More over‚ as the first national automotive manufacturer they have more that 20 years of experience and backed by the more than 1000 vendors and intensive distributed the service and distribution outlet. As financial year ender 31 March 2006 indicated‚ the net value of asset is more than RM 5 billion while the liabilities is only about RM 2 billion. Proton had embarked on a project with the Lotus Group

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