solvent?s inclination to vaporize or leave the fluid state. The most well-known unstable natural solvents are the aliphatic and fragrant hydrocarbons‚ which are generally‚ conveyed in nature‚ basically in common gas‚ petroleum and coal. Cases include: toluene‚ benzene‚ xylene‚ hexane‚ trichloroethylene and the freons. Another class of inhalants is sedative gasses‚ for example‚ ether‚ nitrous oxide‚ chloroform and halothane.
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LOVE Eco Business 100 Section 6 Team Dons Nov 20 2012 Adam Yale‚ Lu Chen‚ Shan Zhang‚ Wanli Lin‚ Weinan Qiu Table of Contents Company Introduction 2-3 Industry & Market Overview 3-5 Mission Statement & Values 5 Business Goals 5 Target Market 6-7 Marketing Mix
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5.4. Synthesis of Poly L-Lactide (PLA) PLA was synthesized by the ring opening polymerization of L-Lactide in presence of stannous octoate. L-Lactide (1.44 g (0.01 mol)) was dissolved in 20 mL of toluene; 1.5 mg of stannous octoate was added to this solution. The mixture was refluxed under continuous stream of nitrogen at 110ºC for 12 h. A white product was obtained. The product was dissolved in 15 mL of chloroform and an excess of cold ether (~32
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Fadfadffasdf afasd fadfas asdf sadf sdf sdf s fsd sd For our free membership‚ please upload one paper to the site. Please fill out the form below to join the site. Your account will be activated immediately. ------------------------------------------------- Top of Form ------------------------------------------------- Personal Information 1. Birth Date: 2. Sex: ------------------------------------------------- Paper Information 1. Choose the type of document you are submitting:
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Formic acid is the simplest carboxylic acid. Its chemical formula is HCOOH or HCO2H. It is an important intermediate in chemical synthesis and occurs naturally‚ most notably in ant venom. Wikipedia Formula: CH2O2 Boiling point: 213.4°F (100.8°C) Density: 1.22 g/cm³ IUPAC ID: Formic acid Molar mass: 46.02538 g/mol Melting point: 47.12°F (8.4°C) When methanol and carbon monoxide are combined in the presence of a strong base‚ the acid derivative methyl formate results‚ according to the chemical
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Lab #4 The Synthesis of Organic Polymers CHM2123‚ Section C October 21‚ 2014 Introduction: Organic polymers are macromolecules that are composed of smaller molecules called monomers. There are two main groups of polymers: natural polymers and unnatural (synthetic) polymers. Natural polymers include proteins such as cellulose and starch and are a necessity for our existence. On the other hand‚ synthetic polymers such as the polycarbonate in our lab goggles
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market share due to the change. However‚ in spite of the aforementioned disadvantages‚ I propose that AdChem should still consider adding mustard oil to Clebal™ because risking the lives of an estimated 5‚000 children in Guatemala with a known toxic toluene based adhesive (Clebal™) could undermine AdChem’s reputation with all customers for an indefinite period not just for Clebal™ but for all AdChem branded products. There is also the potential cost of legal claims from at least some of the estimated
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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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EXP-10 CHEM 233L SYNTHESIS OF p-BROMOANILINE Introduction: In this experiment‚ p-bromoaniline was synthesized in three steps starting from aniline. Since the amino group of aniline is a strong activator of aromatic ring‚ direct bromination is impractical (equation 1). In order to make a desired product‚ amino group needed to be protected as the acetamide which also maintained ortho and para position but slowed down the rate of reaction (equation 2). Slow reaction rate would increase
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GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1) to learn the general theoretical aspects of gas chromatography as a separation method‚ 2) to learn how to operate gas chromatographs specific to COD‚ 3) to become familiar with using the gas chromatograph (GC) to qualitatively identify components of mixtures‚ 4) to be introduced to and to interpret the quantitative data available via gas chromatography‚ 5) to gain insight into how the GC technique is used
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