Extraction & Evaporation. Separating the Components of "Panacetin‚ and the Recrystallization & Melting Point Measurement. Identifying a Component of "Panacetin." Introduction This laboratory experiment was a combination of two separate experiments as stated in the above title. The introduction has been split into 2 separate components to briefly give some background on each procedure. 1 This particular lab is set up with quite a different scenario then that of the last one. A roving
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2.5. Characterization Methods 1H–NMR and 13C–NMR spectra of HPPP‚ BOMP and HVPA were taken in CDCl3 on Bruker DPX–300 MHz spectrometer using tetramethylsilane (TMS) as an internal standard. FT–IR spectra of the synthesized compounds‚ HPPP‚ BOMP‚ HVPA and photocrosslinked polymers were recorded on Perkin-Elmer system 2000 (4000–400 cm–1) spectrometer‚ using KBr pellets. Medium pressure mercury vapour lamp to the power output of 125W/cm2 was used for the photocrosslinking study. The viscosity of the
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Annalisa Sambuceto Mrs. Fenker Chemistry (3) 13 April 2016 Molecule Research Paper- Propylene Glycol 1‚ 2-Propanediol‚ also known as Propylene Glycol‚ is an organic compound used in a variety of skin care products. In these paragraphs‚ you will read about the overall structure of the molecule‚ the most common uses for the molecule‚ the physical properties that the molecule is comprised of‚ and an important news article that shocked the nation regarding the molecule. The chemical formula of Propylene
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Introduction The purpose of this lab is to synthesize Lidocaine from 2‚6-dimethylaniline‚ using diethyl amine‚ 2-chloroacetyl chloride‚ acetic acid‚ and toluene. The Lidocaine was made by adding 2‚6-dimethylaniline to 2-chloroacetyl chloride in acetic acid. Sodium acetate is added in order to make the compound soluble. The product is dried‚ then treated with diethyl amine and toluene. This is refluxed using a water-cooled reflux condenser. The vapor is condensed by the cold water as the compound
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Materials and methods Preparation of saponins from sea cucumber: Saponins were isolated from the sea cucumber‚ Holothuria thomasi (purchased from Hurghada‚ Red sea‚ Egypt and identified by Zoology department‚ Faculty of science‚ Tanta‚ Egypt)‚ according to the method described by Hu et al.‚ (2010) with some modification. Air-dried body walls (750 g) of sea cucumber were grinded into powder and extracted with eight liter with refluxing ethanol. The combined extracts were evaporated with rotary evaporator
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Synthesis of terpolymer PLGC: The terpolymer PLGC was synthesized using a reported procedure with a starting monomer ratio of 70:20:10 of L-LA‚ GL and Ɛ-CL respectively using the catalyst tin(II)2-ethyl hexanoate. The chemical reaction is given in the figure1. The yield % of the synthesized polymer was calculated by the equation: Yield %= (Weight of synthesized polymer)/(Weight of the monomers taken) ×100 Characterization of synthesized polymer: Chemical analysis using Fourier transform infrared
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TEACHER NOTES & GUIDELINES Title of Lab: Effects of Temperature and Solvents on the Cell Membrane Developers of Lab: Adapted by James Kirby JD726‚ Jennifer Mortellaro JD449‚ and James Prockup JD575 from a publication by the Department of Biological Sciences at Western Michigan University‚ Kalamazoo‚ MI Overview of Lab: Description: The purpose of this lab is to illustrate the effects that temperature and solvents have on the cell membrane. Red beet tissue contains large
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BCH3015 Organic Chemistry Name: Chun Ka Yuen (52180145) Group: C Date of experiment: 30/3/2012 Date of report: 3/4/2012 Experiment 5: Polymers Aim: This experiment is to prepare polymeric materials including polystyrene‚ Nylon6‚ 10‚ and cellulose triacetate. Introduction: A polymer consists of repeating subunits in the form of –A-A-A-A-A- or A-B-A-B-A-B-‚ where A and B are different subunits. These sub-units are typically connected
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Experiment 2 Title: preparation of a halogenoalkane Objective: To synthesis 2-cholo-2-methylpropane by using corresponding alcohol and HCl(aq). The reaction is via SN1 of tertiary alcohol. Techniques: i) Distillation of the reactant and the product ii) Purification by separating funnel Theory: In the experiment‚ SN1 reaction take place‚ HCl is added to initiate the reaction. The R-OH attack the H+ with the lone pair on O. Then the R-O+H2 bond breaks the release a water molecule and
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in presence of catalyst have recently attracted noticeable attention. TiO2 has been one of the examples which is been used in vapor phase transformation of lower alcohols at high temperatures. [13-17] Tetsuya Shishido et.al reported an effective‚ solvent free photooxidation of higher alcohols using molecular oxygen over Nb2O5. [18] However‚ very few reports are present on photooxidation and to the best of our knowledge no report is present on the effect of thickness on the optical and photocatalytic
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