Acetic anhydride

    Page 7 of 27 - About 267 Essays
  • Vinegar Lab Report

    Determining Value for Money of Different Brands of Vinegar Aim – To compare the amount of acetic acid found in two different brands of vinegar to see which is the most cost effective. Materials – • Apron • Safety Glasses • Hair Tie (If appropriate) • 50mL burette • 250mL conical flask • 2 x Beaker • Measuring Cylinder • Labels • Pencil • Standard solution of Sodium Hydroxide, NaOH(aq) • Two different brands of vinegar • Phenolphthalein Indicator • A clean white tile • Distilled water • Retort…

    Words: 1279 - Pages: 6
  • Estimation Of Raloxifene Hydrochloride

    3.7 ANALYTICAL METHOD FOR ESTIMATION OF RALOXIFENE HYDROCHLORIDE IN HIGH PERFORMANCE LIQUID CHROMATOGRAPHY USING ACETONITRILE:0.05M AMMONIUM ACETATE (33:67) AS MOBILE PHASE 3.7.1 For Plain Drug Estimation Mode Reverse Phase HPLC Column C18 Detector UV Spectrophotometer Mobile Phase 0.05M Ammonium Acetate (pH 4): Acetonitrile Sample Raloxifene Hydrochloride in Methanol HPLC Flow Rate 1 mL/min Injection Volume 20µL Retention Time 4.6 min Λmax 289nm A stock solution of Raloxifene Hydrochloride was…

    Words: 777 - Pages: 4
  • Pantoprazole Undergoes Hepatic First Pass Metabolism

    Pantoprazole undergoes hepatic first pass metabolism , hence it shows poor bioavailability. The aim of study was to prepare and evaluate mucoadhesive tablet of pantoprazole using tamarind seed powder in combination with HPMC, magnesium oxide, and talc. Tamarind seed powder is used for dissolution enhancer (improve dissolution). Method: Six Formulations were developed with varying concentration of polymer like HPMC and other excipients like tamarind seed powder, magnesium oxide and lactose…

    Words: 2128 - Pages: 9
  • Separation Of Soaps Lab Report

    “Discussion of Results The goals of this experiment were approached in many ways. To figure out the solubility, which is the ability of a solid dissolving in a liquid, of oils, fats, and detergents, the group tried to dissolve all the beginning substances and finished products in a multitude of solvents. In the testing of the four starting substances for the soaps, the group found that all the substances were insoluble in water and hydrochloric acid. However, vegetable oil was soluble in…

    Words: 978 - Pages: 4
  • Methylcobaloxime Research Paper

    Title: Methylcobaloxime: A Model for Vitamin B12 Aim: To create methyl(pyridine)cobaloxime(III) as a model for methylCobalamin, the methylated form of vitamin B12, Introduction: Using Co(I)Cl2 as a starting material, it is possible to produce a cyano(pyridine)cobaloxime like compound, Chloro(pyridine)cobaloxime whose chemistry can be investigated via means of methylation, as such using the Chloro(pyridine)cobaloxime as a model for replicating chemistry already known of…

    Words: 3832 - Pages: 16
  • Methyl Paraben Essay

    1. Materials and suppliers • Caffeine (anhydrous), BASF, Germany, was generously donated by Dar Al Dawa Development and Investment Company. Caffeine is 1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione. It is white or almost white, crystalline powder or silky crystals. It is sparingly soluble in water, freely soluble in boiling water and slightly soluble in ethanol. It is used as central nervous system stimulant (British Pharmacopoeia 2009). • Methyl paraben was generously donated by Arab…

    Words: 1172 - Pages: 5
  • Water Temperature Of Water Essay

    Temperature of Water vs. Time it Takes for Alka Seltzer Tablet to Dissolve Lab 7th Grade Question: What is the effect of the temperature of the water on the time it takes for an alka seltzer tablet to dissolve in water? Intro: This lab represents a parts of the rock cycle when rocks fall into water over thousands of years they become smaller and are in more pieces this is called weathering. But, not all water is the same temperature. For example rivers are moving so they will be colder…

    Words: 1018 - Pages: 5
  • Separation Of Xylene Essay

    A process is disclosed for separating low molecular weight alcohols, especially ethanol, from aqueous mixtures  The feed mixture contains alcohol and water with an extractive solvent comprising a substituted and unsubstituted phenol having 6 carbon atoms and alcohol containing 2 to 4 carbon atoms.  In the process the upper stream contains water with minimum amount of solvent that is 99.9% and the bottom stream contains alcohol with minimum amount of water.  The temperature of the process is…

    Words: 935 - Pages: 4
  • High Performance Liquid Chromatography

    Raju Chandra et al; A reliable and reproducible reversed-phase high performance liquid chromatography (RP-HPLC) was developed for the quantitative determination of quetiapine fumarate from marketed bulk tablets. The active ingredient of quetiapine fumarate separation achieved with C18 column using the methanol water mobile phase in the ratio of 30:70 (v/v). The active ingredient of the drug content quantify with UV detector at 359 nm. The retention time of quetiapine fumarate is 5.27 min. A good…

    Words: 1867 - Pages: 8
  • Camphene Synthesis

    For the first synthesis reaction, camphene was converted to isobornyl acetate. In the fume hood, a sample of 1.36 g of camphene was added to a 25-mL round-bottomed flask along with a stir bar. To dissolve the camphene, 3.0 mL of glacial acetic acid was added into the flask. The flask was fastened onto a ring stand and immersed in a water bath that was on top of a stir plate. A thermometer wire was placed in the water bath to monitor the temperature throughout the experiment. After the camphene…

    Words: 1013 - Pages: 5
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