INTRODUCTION Cassia fistula Linn. (Leguminosae) is a very common plant and is widely known for its medicinal properties. In the Indian literature‚ this plant has been described to be useful against skin diseases‚ liver troubles‚ tuberculous glands and its use in the treatment of rheumatism‚ hematemesis‚ pruritus‚ leucoderma‚ and diabetes.[1‚2] Besides‚ it has been found to exhibit anti-inflammatory and hypoglycemic activity and widely used as a mild laxative suitable for children and pregnant women
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Chemistry 1211 Prof. Dan Schwartz Exam #2 Thursday‚ 3/13/2003 7:00 – 8:30 P.M. There is a single correct choice for each question. Answer all questions on the Scantron sheet by filling in the proper bubble with a #2 pencil. If you change an answer‚ erase the undesired mark thoroughly. Be sure to fill in the boxes for your student number‚ name and lab section; then correctly fill in the corresponding bubbles beneath them. A periodic table and other useful information are attached to the back
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Experiment 2: Isolation of Eugenol from Cloves Background; Readings on Vapor pressure‚ Raoult’s Law from TRO: A mixture of the essential oils‚ eugenol and acetyleugenol‚ will be steam distilled from cloves. These compounds are isolated from aqueous distillate by extraction into dichloromethane. The dichloromethane solution is shaken with aqueous sodium hydroxide‚ which will react with eugenol‚ to yield the sodium salt of eugenol in the basic
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Preparation of Dibenzalacetone by the Aldol condensation David o Neill Date of experiment: 14/12/2011 Apparatus Steam bath‚ ice bath‚ Buchner funnel‚ beaker‚ conical flask‚ filter paper‚ TLC apparatus‚ Melting point apparatus Materials / chemicals Benzaldehyde‚ acetone‚ ethanolic sodium hydroxide‚ ethanol Introduction The synthesis of dibenzalacetone is formed from an Aldol condensation reaction. An Aldol condensation reaction is a very effective way of forming a carbon – carbon bond reaction‚ in
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Goal: to post about 10 chemicals‚ what they do‚ and how they are used Total Word Count In This Document: 1531 Title: ?10 Chemicals? Menthol Menthol is a synthetically-made organic compound extracted from natural plants like corn mint‚ peppermint‚ and other mint oils. It is a waxy and crystalline substance that is either clear or white in color. Due to its local anesthetic and counter-irritant qualities‚ it is widely used for a variety of purposes like soothing minor throat irritations‚ such as
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Exercise 14: Qualitative Anion Tests PURPOSE: The purpose of this experiment is to identify some commonly occurring anions & to study some of the reactions used for their identification. PROCEDURE: You must first determine to which of the three groups the various anions belong. Since no two people observe the same event in exactly the same way it is important to also conduct specific confirmation tests on the known samples of each anion. This information will help identify the anion
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The Complete Organic Chemistry Worksheet The Complete Organic Chemistry Worksheet.doc Name 1. Name the following hydrocarbons. 3 j’\- d\ m.u\ \q’\\Lxc.$’s CHr i"’ a.CH3-CH2-CH-CH-CH. I CH: 9n’ tt e. CHr-CH-CH-CH-CHl I t- f‚ ‚3‚ q - \c’ *"jtr1\\-s.x^t’"*- CHz I CH: CHr CHr CHr f. CH3-CH2-CH-CH-CH CHr ?"’ !t’ I j \- A.^ r.alh-{hq"{n-"* Ll A A \-k ‚e*q\t^’-tt i"’ f"l -’"’-lu*"‚Uo..q b cur-f-is-a"‚ "’ ll cH: g. CH: I CH2 3
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The iSlavery We iGnore We are very familiar with all of the iProducts such as iPods‚ iPads‚ and iPhones‚ but are you aware of what iSlave means? Probably not. The term iSlave is used by human rights activists to describe the labor conditions at the Apple ’s manufacturing plants in China. Sadly‚ most of us do not even care where and how these products are made as long as we can enjoy the wonders of technology that Apple can provide us. But there is something more behind these dazzled wonders‚ something
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Appendix APPENDIX 1 Chemical tests for functional groups Homologous series/ Typical compound Functional group(s) Alkanes CH3CH3 ethane C – C and C–H Alkenes CH2 = CH2 ethene C=C Chemical tests/Observations Add liquid bromine in ultraviolet light (or sunlight): White fumes of HBr liberated; decolourisation of bromine occurs slowly (a) Add Br2 in CCl4 at room temperature: Decolourisation of bromine occurs immediately CH2 = CH2 + Br2 → CH2BrCH2Br (b) Add acidified
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compounds. For Chromatography: “Polar Dissolves More” not “like dissolves like” Some Common Solvents: (listed by increasing polarity) • Petroleum ether (C5 isomer compounds‚ like pentane; not a true “ether”) • Ligroin (C6 isomer compounds‚ such as hexane) • Diethyl Ether (CH3CH2OCH2CH3) • Dichloromethane (CH2Cl2) • Ethyl Acetate (ester: CH3CH2OC(O)CH3) • Methanol (alcohol: CH3OH) • Acetic Acid (carboxylic acid: CH3CO2H) And of course – mixtures of the above solvents can be used. Consider the
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