which is about soap making but after all the long thinking and brainstorming‚ we decided to come up with a perfume as a product with the use of rose petals. Perfumes and scented products are composed of toxic chemicals like acetone‚ toluene‚ ethyl acetate‚ formaldehyde and ethanol that are found on any list of toxic and hazardous chemicals. All these and other chemicals used in the manufacture of personal care products have been shown in animal studies to cause serious health problems and even death
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He a lt h 0 3 2 3 Fire 0 Re a c t iv it y 2 P e rs o n a l P ro t e c t io n Material Safety Data Sheet Sulfuric acid MSDS Section 1: Chemical Product and Company Identification Product Name: Sulfuric acid Contact Information: Catalog Codes: SLS2539‚ SLS1741‚ SLS3166‚ SLS2371‚ SLS3793 CAS#: 7664-93-9 Sciencelab.com‚ Inc. 14025 Smith Rd. Houston‚ Texas 77396 RTECS: WS5600000 US Sales: 1-800-901-7247 International Sales: 1-281-441-4400 TSCA: TSCA
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Anise oil was successfully able to be extracted from anise seeds during this experiment. It was done by first crushing the seeds‚ then placing them into a distillation apparatus. The distillation apparatus evaporated the liquid from the seeds‚ which was captured in a flask. Next‚ DCM was added to the distillate‚ which allowed the water to be separated from the anise oil. Finally‚ the DCM evaporated and the pure anise oil was collected. The process of steam distillation allowed the anise oil in
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Column Chromatography ________________________________________________ You have already performed two chromatography experiments: gas chromatography and thin layer chromatography. All chromatography experiments involve passing a mixture of analytes through a system that includes a mobile phase and a stationary phase. The partitioning of the analytes between these two phases determines the rate at which they pass through the system‚ and (in theory) allows them to be separated from one another. Column
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reference compound. The composition of the unknown mixture and two single unknowns were determined by spotting the reference compounds and the unknown compounds on two TLC plates. Placed them in a developing chamber that contained 0.5% acetic acid in ethyl acetate solvent and observed the TLC plates under UV light after the TLC plates were taken out of the developing chamber. The known reference compounds portrayed spots and calculated Rf values that the unknown compounds matched to. This suggests that the
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Chemical Engineering and Processing 46 (2007) 774–780 Reactive distillation: The front-runner of industrial process intensification A full review of commercial applications‚ research‚ scale-up‚ design and operation G. Jan Harmsen a‚b a Shell Global Solutions‚ Shell Research and Technology Center Amsterdam‚ P.O. Box 38000‚ 1030 BN Amsterdam‚ The Netherlands b RijksUniversiteit Groningen‚ Nijenborgh 4‚ 9747 AG Groningen‚ The Netherlands Received 19 June 2007; accepted 20 June 2007 Available
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understanding of how chromatography works and how to operate instruments used to carry out the procedures is an important lab technique to learn. Experiment: Thin Layer Chromatography. Lab #10-1 Paper Chromatography. Lab #10-2 Theory: Ethyl Acetate-Solvent used in TLC (mobile phase). Dichloromethane- Solvent used to dissolve all samples used to compare unknown in TLC Silica Gel Plates- TLC plates. Stationary phase Elemental Iodine- used to accentuate the spots on the TLC plates so we
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compound Observation After heating Test with Blue litmus Paper Acetic anyhydride No change Bubbles red Ethyl acetate Small bubbles‚ immiscible -- Red Benzamide No change Bubbles Blue Acetyl chloride Heat evolved‚ cloudy -- Red *no change heated (red)- acidic (blue)-basic The hydrolysis of Acyl compound was performed with acetyl chloride‚ acetic anhydride‚ ethyl benzoate‚ and benzamide as samples. 6 drops or a spatula tip of sample was placed in a test
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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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commonly ethanol‚ or grain alcohol. An alcohol is a chemical compound whose molecular structure is comprised of a hydroxyl group –OH chemically bonded to a carbon. One of the simplest and most common esters is ethyl ethanoate‚ or ethyl acetate‚ a combination of ethanoic acid and ethanol. The ethyl ethanoate chemical reaction is C2H4O2 + CH3CH2OH C4H8O2 + H2O. As seen in this reaction‚ an acid and an alcohol are combining to form an ester‚ with a water molecule as a bi-product. The water molecule is
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