Fractional distillation was used in this experiment. This is one of two ways for distillation‚ the other being simple distillation. However‚ with a simple distillation‚ the difference of boiling points between the substances must be more than 40 to 50 degrees C. A fractional distillation column is needed in a fractional distillation. The column in a fractional distillation column provides a temperature gradient where the temperature is lower at the top of the column and the temperature is greater
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of the Lower Flammable Level (LFL). Follow company’s “Procedure for Entry into Enclosed Spaces” with related permits. If the previous cargo contains Hydrogen Sulfide (H2S) or other toxic contaminants which could evolve toxic gases (eg benzene‚ toluene‚ Mercaptans‚ etc)‚ the tank should be checked for such gases. Refer to “Guidelines for Toxic Gases Hazards” Carrying out “Hot Work” inside Tanks within the ‘Dangerous Area’ need special caution as per “Procedures for Hot Work” and carry out preparation
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Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained‚ it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O. This
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Resorcinol)‚ 4 heterocyclic compounds (Dibenzo[a‚j]acridine‚ Dibenzofuran‚ 2-Picoline‚ Pyridine) and 2 α‚ β-unsaturated cyclic ketone (p-Benzoquinone‚ Isophorone). The solution injected was diluted 10 times from the original standard mixture (in toluene) into acetonitrile and water (50:50‚ v/v). The LC×LC separation was carried out by a 150mm C18 column as the first dimension and a 50mm Kinetex PFP column as the second dimension‚ in order to perform fast separation. The contour plot of LC×LC separation
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CHEM 3411‚ Fall 2010 Solution Set 5 In this solution set‚ an underline is used to show the last significant digit of numbers. For instance in x = 2.51693 the 2‚5‚1‚ and 6 are all significant. Digits to the right of the underlined digit‚ the 9 & 3 in the example‚ are not significant and would be rounded off at the end of calculations. Carrying these extra digits for intermediate values in calculations reduces rounding errors and ensures we get the same answer regardless of the order of arithmetic
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Class 12(Class XII)textbook CHAPTER TEN HALOALKANES AND HALOARENES EXERCISES 10.19 How the following conversions can be carried out? (i) Propene to propan-1-ol :- (ii) Ethanol to but-1-yne (iii) 1-Bromopropane to 2-bromopropane :- (iv) Toluene to benzyl alcohol :- ©TutorBreeze.com Please do not copy the answer given here Write to us for help in understanding the solution NCERT/CBSE CHEMISTRY CLASS 12 textbook http://www.TutorBreeze.com Contact for Online Tutoring in Physics‚ Math
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Based on common solvent impurities the peak at ~3.33 ppm is water‚ ~2.30‚ 7.18‚ and 7.25 ppm is toluene‚ ~1.09 ppm is diethyl ether‚ ~3.41 is ethylene glycol‚ and ~2.50 ppm is DMSO.6 The 1H NMR of the intermediate shows a shielded proton peak in the 0.9-1.7 ppm region with an integration of 3 protons as expected of the methyl group furthest away from
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dramatically worsen global warming. According to the National Oceanic Atmospheric Association (NOAA)‚ the Methane being released by fracking in Colorado alone is equivalent to the emissions from 1-3 million cars. In addition to methane‚ benzene‚ toluene‚ carbon monoxide‚ and nitrous
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Rugby Boys In Partial Fulfillment of the Requirements of the subject English 2 March 2013 Outline Introduction a) Overview of the study b) Statement of the problem c) Significance of the study Findings and Discussion Conclusion a) Generalization b) Recommendation Bibliography Appendices a) Transcript b) Pictures c) Introduction According to the testimony to the U.S. House Committee on International Relations‚ street children are those
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SKPP 1313 Fundamentals of Petroleum Engineering Quiz 1 (20 marks) Name: _____________________________________________________ Answer all questions 1) Petroleum engineer can be divided into several groups. Name one of them and briefly explain his main duty. [3 marks] __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________
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