| nitric acid | alcali volatil | ammonium hydroxide - ingredient in cleaning agents | alcohol‚ grain | ethyl alcohol | alcohol sulfuris | carbon disulfide – used in fumigation‚manufacturing‚insecticide and solvent | alcohol‚ wood | methyl alcohol - used as an antifreeze‚ solvent‚ fuel‚ and as adenaturant for ethanol | alum | aluminum potassium sulfate | alumina | aluminum oxide - As a filler‚ abrasive‚ effect pigment | antichlor | sodium thiosulfate - used for the neutralization
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Rhodococcus SPECIES IN VARIOUS APPLICATIONS THROUGH FOUR MAIN MECHANISMS; CATABOLIZATION‚ BIOCONVERSION‚ BIODEGARDATION AND BIODESULPHURISATION. By ZAINAL ABIDIN BIN ABU BAKAR Thesis Submitted to the Faculty of Biotechnology and Life Sciences‚ Universiti Industri Selangor‚ in Partial Fulfillment of the Requirement for the Degree of Bachelor of Biotechnology Industry (Hons) May 2009 1 I hereby declare that the thesis is based on my original work except for quotations and citations
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haloarenes with various types of reactions. (iv) Use stereochemistry as a tool for understanding the reaction mechanism. (v) Describe common polyhalogen compounds. INTRODUCTION The replacement of hydrogen atom(s) in a hydrocarbon‚ aliphatic or aromatic‚ by halogen atom(s) results in the formation of alkyl halide (haloalkane) and aryl halide (haloarene)‚ respectively. Many halogen containing organic compounds occur in nature and some of these are clinically useful. These classes of compounds
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nucleophile of the reducing agents such as LiH‚ LiAlH4‚ or NaBH4 must be carefully chosen. Being that LiAlH4 and NaBH4 will not react with isolated carbon-carbon double bonds nor the double bonds from aromatic rings; the chosen compound can be reduce selectively when the nucleophile only react with electrophilic carbons. Figure 1: reduction mechanism for the reaction In this experiment‚ the benzil (diketone) is used as the organic substrate. Sodium borohydride‚ NaBH4 is used as the reducing agent
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Amanda Tran Date of lab: 04/25/05 Date submitted: 05/09/05 Chem 2130-3 Experiment 3: Synthesis of Co(acac-NO2)3 Introduction In this lab‚ Co(acac·NO2)3 is synthesized using the Co(acac)3 complex produced in Experiment 2. The Co(acac)3 complex is used as a reagent instead of acacH because acacH cannot be directly converted to 3-nitroacetylacetone. Since Co(acac)3 is not stable in HNO3‚ Cu(NO3)2 and acetic anhydride are used in this reaction to produce the final product
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Environmental Chemistry It often matters how much given atoms combine‚ in what arrangement‚ with what others‚ what impulse they receive‚ and what impart. The same ones make up earth‚ sky‚ sea‚ and streams; the same as the sun‚ the animals‚ grains and trees‚ but mingling and moving in every different ways. - Lucretius (95-52 B.C.) in The Nature of Things I. Physical Chemistry Why is Physical Chemistry important in the study of Environmental Engineering? • Applied physical chemistry procedures
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LEARNING LOG 2: Observe‚ Connect and Reflect on Your Learning PART III – Symmetry in Crystals The most striking examples of symmetry…are crystals. Herman Weyl Period Focus Image Question Your Observations Complete at the end of Week 5 Image 5 Uvarovite is a gemstone rich in chromium. What are your main observations about uvarovite symmetry from studying the external form? (30 - 40 words) (2 marks) What is your personal favourite gemstone and what is its space group. (up to
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Amines and Amides Amine - an ammonia molecule (NH3) in which one or more H atoms are substituted by an alkyl or aromatic group. Amide - an organic compound with a carbonyl functional group (C=O) bonded to a nitrogen atom. Amines are the smaller and simpler products of the decomposition of larger and more complex organic compounds like proteins. They often have foul odours‚ as do many nitrogen compounds‚ such as the smell of rotting fish and decomposing animal tissue and are produced by
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Chemistry : Important Questions For CBSE Class XII ( Haloalkanes and Haloarenes) (Q.1) Choose the incorrect statement about the benzyl chloride: ( 1 mark ) (a) It is less reactive than alkyl halides. (b) It can be oxidized to benzaldehyde by boiling with copper nitrate solution. (c) It is a lachrymatory liquid and answers beilstein’s test. (d) It gives a white precipitate with alcoholic silver nitrate (Q.2) Dry ether The reaction RX + 2Na + RX _______________? R-R + 2NaXis called. ( 1 mark
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2003). This improvement has led to the breeding of a new aromatic rice variety that can grow in irrigated areas with sufficient water for rice growing through the year. There was successful in 1997‚ when the Department of Agriculture certified three other cultivars of aromatic rice‚ namely‚ KlongLuang 1 and Hawm SuphanBuri and Hawm Phitsanulok 1 in 1998. In the year of 2000‚ Pathum Thani 1 (PTT1) was also certified as one of the off-season aromatic rice varieties (Kwanchai‚ 2001) that are closely in quality
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