Solvent Essays & Research Papers

Best Solvent Essays

  • Solvents - 921 Words
    WHAT IS NAIL POLISH? A non-polar coating used to decorate fingernails and toenails. Its composed of several different chemicals that give it strength, flexibility, and resistance to chipping and peeling. WHAT IS IT MADE OF? 1. First, solvents are used to mix together all the ingredients in a nail polish to yield a uniform liquid product. a. The type and amount of solvent determines how thick a polish is and how long it takes to dry b. Most Common solvent- ethyl acetate. c. Ill talk more...
    921 Words | 3 Pages
  • Ionic Solvents - 551 Words
    Although any liquid may be used as a solvent; relatively few are in general use. However, as the introduction of cleaner technologies has become a major concern throughout both industry and academia, the search for alternatives to the most damaging solvents has become a high priority. Solvents are high on the list of damaging chemicals for two simple reasons: 1. They are used in huge amounts. 2. They are usually volatile liquids (VOCs) that are difficult to contain. Solvent properties of ILs...
    551 Words | 2 Pages
  • Solvent Extraction - 1745 Words
    SOLVENT EXTRACTION Solvent extraction, also known as liquid extraction and partitioning, is a method to separate compounds based on their relative solubility in two different immiscible liquid, usually water and organic solvent. It is an extraction from one liquid phase to another liquid phrase. Liquid extraction is a basic technique in chemical laboratories, where it is performed using a separator funnel. This type of process is commonly performed after a chemical reaction as part of the...
    1,745 Words | 6 Pages
  • Water as a Universal Solvent - 306 Words
    Water as a Universal Solvent * Because of its high polarity, water is able to dissolve most substances. * In a solution, the positive hydrogen side of water is attracted to the negative parts if the compound it is dissolving while the negative oxygen is attracted to the positive parts * “Like dissolves like” – describes whether one substance will dissolve in another. Water for example can’t dissolve nonpolar substances Concentrations on Solutions * Solvent: The liquid...
    306 Words | 2 Pages
  • All Solvent Essays

  • Solvent and Chloride Percent Yield
    Title: Prep of t-Butyl Chloride via SN1 Reaction Purpose: The purpose of this experiment is to synthesize tert-butyl chloride via an SN1 reaction. t-Butyl Chloride was synthesized from t-Butyl Alcohol using hydrochloric acid in separatory funnel; isolation of t-Butyl Chloride was done under distillation conditions. The experiment resulted in 8.29grams of purified compound, which is a 66.27 percent yield. Procedure: As per handout with changes Equation: Mechanism: Results:...
    614 Words | 2 Pages
  • Recrystallization: Solvent and Solubility - 1376 Words
    RECRYSTALLIZATION OF ACETANILIDE ABSTRACT Recrystallization is the primary method for purifying solid organic compounds through the differences in solubility at different temperatures. In this experiment, a suitable solvent was first determined. Acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heating water bath. The hot solution was filtered and the filtrate, cooled slowly in an ice bath as crystals started...
    1,376 Words | 6 Pages
  • Effect of Organic Solvents - 1298 Words
    SYNTHETIC EXPLOITATION OF ENZYMES: BIOCATALYSIS IN ORGANIC SOLVENTS: FUNDAMENTALS ENZYMES IN ORGANIC SYNTHESIS 1. Enzymes catalyze a broad spectrum of reactions with high turnover numbers. Rate enhancements approach 1012 fold. 2. Enzymes may accept a wide range of substrates. 3. Enzymes are highly regio and stereoselective. 4. Enzyme reactions take place under mild conditions; this minimizes problems of isomerization and racemization. 5. Enzymatic processes are less hazardous and...
    1,298 Words | 15 Pages
  • Organic Solvent Stress on Membrane
    Beet Cell Lab Purpose: The purpose of this Lab was to see how much pressure or stress the beet tissue would hold. Hypothesis: I hypothesize that the higher % of the solvent that the higher the colour intensity will be shown on the ph colour scale. The lower the solvent then the less colour shown. Materials: *Test Tubes (4) *Cork Borer *Beets *Water *1% Acetone *50% Acetone *1% Methanol *50% Methanol Procedure: *Cut 4 uniform cylinders of beet using a cork borer with a...
    459 Words | 2 Pages
  • Supercritical Co2 as Green Solvent
    Department of Chemistry Supercritical Carbon Dioxide Carbon dioxide is a readily available, cheap, recyclable and is non-toxic and non-flammable. Above the temperature of 31.6 oC and pressure of 73 atm carbon dioxide exhibits physical properties, which are intermediate between those of gases and liquids. These conditions are called supercritical conditions and are readily achievable using commercially available equipment. Supercritical carbon dioxide is able to dissolve a range of chemical...
    386 Words | 2 Pages
  • Solvent and Double Bond - 693 Words
    Lab #2 (Part A,B) Due date: Oct 5, 2010 1 - Theory and mechanism Epoxidation is a reaction of an alkene with a peroxycarboxylic acid (also called peracid) to produce an epoxide product, generally performed in inert solvents, such as dichloromethane. The epoxide product is a cyclic ether in which the ring contains three atoms. The alkene gains an oxygen from the peracid in a syn fashion. In this experiment, R-(-)-carvone is reacting with MCPBA, a peracid, to produce the epoxide product....
    693 Words | 4 Pages
  • Extraction of Organic Solvent - 493 Words
    Extraction is a method used for separating and isolating materials. A compound is pulled from solvent A to solvent B and in this case, both solvents are miscible. These two concepts are not capable of mixing together; when they are mixed together, they form a bilayer. This can be seen when mixing oil and water together. When thinking of extractions, one can picture how coffee gets extracted. The flavors, molecules, caffeine, etc. are extracted from the coffee beans. In this experiment, a...
    493 Words | 2 Pages
  • Usp Residual Solvents Analytical Method
    Residual solvents Identification and control of the residual solvents (USP 32(467), page 181 Determination by gas chromatography with mass detector and headspace sampler Conditions of the chromatograph Agilent 7890A (LCTG CGMS): * Column DB-624 30m 0.25 mm 1.4µ (CG-2) * Injector temperatura: 160ºC * Flux: 1.0 ml/min * Split: 5:1 * Carrier gas: Helium * Time per test: 30.6 min Conditions of the detector 5975C inert MSD * Data adquisition mode: Scan/SIM *...
    501 Words | 2 Pages
  • Recrystallization of Acetanilide Using Water as Solvent
    University of Santo Tomas Faculty of Pharmacy Organic Chemistry Laboratory RECRYSTALLIZATION OF ACETANILIDE USING WATER AS SOLVENT Lagarteja, M.C.B.; Lim, H.G.N.; Lizo, K.J.R.; *Macalino, M.D.L.; Macapala, C. 2D-Pharmacy, Faculty of Pharmacy, University of Santo Tomas Abstract Recrystallization is a technique used to purify organic solids. This method involves dissolving of a solute in a solvent and inciting the solute to produce a precipitate from a solution. In this experiment,...
    1,250 Words | 5 Pages
  • Hydrolysis of tert-butyl Chloride in different solvents
    Hydrolysis of tert-butyl Chloride in different solvents Practical conducted on 5 March, 2013 Reported by Pham Vu Hung on 10 March, 2013  Introduction: This practical is meant to measure the rate of reaction of the hydrolysis of tertiary-butyl chloride –a colorless, liquid organic compound at room temperature that is sparingly soluble in water - in water/acetone and water/isopropanol mixtures. Since there are many influencing factors for the rate of reaction, all are kept constant but...
    1,152 Words | 6 Pages
  • Separating Acids and Neutral Compounds by Solvent Extraction
    Separating Acids and Neutral Compounds by Solvent Extraction Introduction The purpose of this experiment was to use solvent extraction techniques in order to separate a mixture consisting of a carboxylic acid (p-toulic acid), a phenol (p-tert-butylphenol), and a neutral compound (acetanilide). Extraction is the process of selectively dissolving one or more of the compounds of a mixture into an appropriate solvent, the solution that contains these dissolved compounds is called an extract...
    1,456 Words | 5 Pages
  • Determination of Copper by Complexation, Solvent–Extraction and Spectrophotometry
    DETERMINATION OF COPPER BY COMPLEXATION, SOLVENT-EXTRACTION AND SPECTROPHOTOMETRY ABSTRACT To determine the concentration of copper in an unknown solution by using copper complexation, solvent extraction and spectrophotometry. Standards are used to create a calibration curve and the unknown concentration of copper is then calculated by using the linear equation from the calibration curve. The concentration of copper in the unknown solution 201 was found to be 12.57± 0.25 μg/mL. INTRODUCTION...
    2,514 Words | 13 Pages
  • Bio 110 the Effect of Solvent Exposure and Temperature on Beet Cell Membrane Integrity
    The Effect of Solvent Exposure and Temperature on Beet Cell Membrane Integrity Introduction: • Cell membranes are vital to proper cellular function • Cell membranes consist of a lipid bilayer made up of phospholipids • Phospholipids are amphipathic molecules meaning they have a dual nature in that they show both hydrophilic (water-loving) and hydrophobic (water-fearing) properties • The amphipathic nature of phospholipids causes them to spontaneously form bilayers in water...
    1,173 Words | 4 Pages
  • Bromination of trans-cinnamic acid
    Abstract The bromination of trans-cinnamic acid was completed to determine dibromide’s stereochemical structure and its mechanism. After the addition of bromine to trans-cinnamic acid, the product was identified by its melting point and infrared spectrum resulting in erythro-2,3-Dibromo-3-phenylpropanoic acid after comparing similar properties. Introduction In this lab, the bromination of trans-cinnamic acid was completed to determine dibromide’s stereochemical structure, and from there...
    688 Words | 3 Pages
  • Writen Report For Science Project
     A Research and Experiment On Permanent Markers F1C-G-036 2013 Science Fair Table Of Contents Research Research on Permanent Markers pg 1 Experiment Statement of purpose pg 2 Hypothesis pg 2 Materials pg 4 Procedure pgs 4-5 Observation and Results pg 6 Conclusion pg 7 Bibliography pg 8 Research We made research of this topic on the World Wide Web, we found out more about what...
    819 Words | 4 Pages
  • Lidocaine Synthesis - 1214 Words
    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...
    1,214 Words | 4 Pages
  • Isolation of Components of Bc Powder
    ! Isolation of the Components of BC Powder Introduction Aspirin, Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this, the three components were forced into conjugate acid (or base) forms, causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation...
    1,653 Words | 6 Pages
  • Recrystallization - 880 Words
    Laboratory Experiment Report Title of Experiment: Recrystallization Aim: To determine suitable recrystallization solvents for four organic compounds through their solubility characteristics. To purify sample of organic compounds that is solids by recrystallization at room temperature. To determine the melting point of the substance to characterize it and calculate % recovery. Material and Method: AS outlined in the lab manual , Page 6-9,Page 20. Recrystallization: Using a hot...
    880 Words | 9 Pages
  • Solubility Lab - 815 Words
    1. Provide a general discussion of the solubility/miscibility behavior observed in procedure A-D. For part A of the procedure we worked with the solubility of solid compounds in various solvents. The three solid compounds that were worked with during this procedure were benzophenone, malonic acid, and biphenyl. These three solids were then mixed with water (highly polar), methyl alcohol (intermediately polar), and hexanes (nonpolar). When benzophenone is mixed with water the results turned out...
    815 Words | 2 Pages
  • Chem 201 - Extraction - 1057 Words
    Extraction (Ch # 07) Faraz Gohar Mr. Wayne Xie Chem 201 10/02/2012 Objectives : 1)To purify samples of organic compounds that are solids at room temperature. 2)To dissociate the impure sample in the minimum amount of an appropriate hot solvent Chemical Index : Naphthalene; mp 82 *C 1,4-Dichlorobenzene; mp 56 *C 4-Chloroaniline; mp 68 - 71 *C; pKb 4.15 Ethyl 4-Aminobenzoate; mp 90 *C; pKb 4.92 Procedure :...
    1,057 Words | 4 Pages
  • Physical Properties of Organic Molecules Experiment
     Physical Properties of Organic Molecules Abstract Identifying the physical properties of compounds can be useful in several ways. It helps us to determine the structure of certain compounds, the purity of substances and if a substance is not pure we can figure out how to separate contaminating substances from a compound. In this experiment, I learned how to determine a solid’s melting point and why some melting point ranges may be...
    802 Words | 3 Pages
  • ATQ 2 - 367 Words
    1.) How does the use of fluted filter paper hasten filtration? Why is it advisable to place a small piece of wire between the funnel and the mouth of the flask during hot filtration? The way the fluted filter paper is folded hastens filtration because it increases the surface area of the filter paper, giving the solution more area to go through. A piece of wire is placed to avoid build-up of pressure, and easily pour the solution without spilling. 2.) Enumerate 2 techniques that can...
    367 Words | 2 Pages
  • Caffeine Extraction from Tea Pre Lab Report
    Describe an alternative method for evaporation of the CH2Cl2 Can be steamed and then rinsed with ethyl acetate for several hours, and then rinsed with water, or can be soaked in a bath of CO2 and run through water, making carboxylic acid. (2) Caffeine: (4) Repeated exposure can produce general deterioration of health by an accumulation in one or many human organs. First Aid Measures: Eye contact - Immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used....
    662 Words | 3 Pages
  • Microencapsulation - 1949 Words
    MICROENCAPSULATION Microencapsulation: Definition: It is the process by which individual particles or droplets of solid or liquid material (the core) are surrounded or coated with a continuous film of polymeric material (the shell) to produce capsules in the micrometer to millimetre range, known as microcapsules. Microencapsulation (Cont.): Morphology of Microcapsules: The morphology of microcapsules depends mainly on the core material and the deposition process of the shell. 1-...
    1,949 Words | 9 Pages
  • outline - 507 Words
    Outline Lab 4: Cell Special Project Experiment Photosynthesis- Extracting pigments using chromatography technique and determining absorption spectrum of pigments and measuring rate of photosynthesis. Objective: 1. To separate and compare the chlorophyll pigments in different leaves. 2. To measure the wavelength of light absorbed by the chlorophyll extract. Materials : fresh spinach, petroleum, ether : acetone (9:1) ,strips of chromatography papers, 250 ml test tubes, rubber bungs,...
    507 Words | 2 Pages
  • Extraction of Benzoic Acid - 1211 Words
    Introduction The purpose of this experiment is to practice common organic laboratory techniques inside the lab to get one oriented to the basic methods of procedure that can be used for later experiments. This experiment involves the separation of benzoic acid from a more crude form, consisting of benzoic acid, methyl orange, a common acid/base indicator, and cellulose, a natural polymer of glucose (Huston, and Liu 17-24). The technique that is used to perform this separation is called...
    1,211 Words | 3 Pages
  • Isolation of Caffeine from Tea
    Experiment # 1 Isolation of Caffeine from Tea I. Introduction Organic compound can be separated and can be obtained from a mixture of compounds by chemical, physical or mechanical means using the process called Extraction. One or more of the mixture compounds can selectively dissolve into an appropriate solvent in the process of extraction where dissolved compounds is referred to as Extract. The experiment comprises the solid-liquid extraction, the liquid-liquid extraction and...
    1,248 Words | 5 Pages
  • methyl acetate uses - 475 Words
    Eastman solvents—Technical tip Using Eastman methyl acetate in cleaning applications Introduction Considerations Eastman Chemical Company, the world’s leading producer of methyl acetate, offers this solvent in two grades to suit a variety of application needs: Wide formulation latitude •  Regular (industrial) grade offers a minimum assay of 96%, a maximum methanol content of 2.5%, and a maximum water content of 1.5%. •  High purity grade offers a minimum assay of 99.5%, a...
    475 Words | 6 Pages
  • Pre-Lab Chem 151
    Majed Al Dhwaihi Chem 151 Lab Prelab Assignment for week 3 Chemical Separation Procedure: Separating the sample: First place a small amount of the spinach provided in the mortar, just enough to cover its bottom; combined with the sand provided to break down the call walls. A 1:1 mixture of hexane and acetone was determined to best solvent for this extraction. Knowing this add one mL of the pure hexane and one mL of the pure acetone to the mortar. Grind the contents until the cell walls...
    428 Words | 2 Pages
  • Seperating Green Tea - 1046 Words
    Solid-liquid extraction and liquid-liquid extraction of caffeine from tea leaves Andrew Jensen Lab partners: Jamie Pawluk, Joe Luong 230105559 Chem 250 L2 Oct,4,2012 Introduction: Extraction is the experimental procedure of obtaining a desired compound with the use of a solvent from either a liquid or solid mixture. Solid-liquid extraction involves the removal of organic compounds from solid material. This method of extraction may be achieved through extraction of the organic compound...
    1,046 Words | 3 Pages
  • Chromatography Lab Repot - 668 Words
    Design and carry out a scientific investigation on any one factor that affects retention on paper chromatography Design and carry out a scientific investigation on any one factor that affects retention on paper chromatography CHEMISTRY LAB REPORT CHEMISTRY LAB REPORT Name: Sri Danielle Class: 9A Teacher: Sir Ajay Name: Sri Danielle Class: 9A Teacher: Sir Ajay Aim My aim for this experiment is to find out how different types of solvent will affect the retention factor in paper...
    668 Words | 4 Pages
  • Purification and Thin-Layer Chromatographic Analysis of Caffeine
    Purpose of the Experiment: The intention of the experiment is to use solvent extraction methods to separate a mixture containing a carboxylic acid and a neutral compound. Once recovered, the solids were purified by recrystallization and examined by thin-layer chromatography, and their identities were derived by melting point and infrared (IR) spectroscopy. Extraction is a procedure that selectively dissolves one or more of the mixture compounds into a proper solvent. Extraction refers...
    1,241 Words | 4 Pages
  • Recrystallization - 1327 Words
    RECRYSTALLIZATION Lem Therese D. Delos Ama, Glenn Dale M. Desquitado, John Carlos M. Drapesa, Arianne Valerie B. Escritor, Elisha Ellis R. Esteva Group 4 2B Medical Technology Organic Chemistry Laboratory ABSTRACT In this experiment, acetanilide was used as the pure organic compound. Acetylation of aniline and acetic anhydride yields the crude product or crude acetanilide. The crude acetanilide was purified by dissolving it in hot water and then the solution was cooled slowly by...
    1,327 Words | 5 Pages
  • Reearch Paper - 1784 Words
    Recrystallization Estopace, Edgie1, Polintan, Clarisse K. Professor Edgie Estopace, School of Chemical Engineering, Chemistry and Biotechnology, Mapua Institute of Technology; Clarisse Polintan, CHM145L/A21, School of Chemical Engineering, Chemistry and Biotechnology, Mapua Institute of Technology ABSTRACT This experiment is all about identifying the appropriate solvent for recrystallization and technique and to use the recrystallization technique in purifying a solid sample. Most...
    1,784 Words | 6 Pages
  • Ionic Liquids - 7533 Words
    Chapter 1: Introduction Chapter 1: Introduction Ionic liquids (ILs) can be viewed as a new and remarkable class of solvent. They are also a type of materials that have a long and useful history, where the earliest material that meets the current definition of IL was observed in the mid-19th century when a separate liquid phase called the “red oil” was observed in Friedel-Crafts reaction [17]. Over the following years, there has been a rapid growing of interest in ILs due to the...
    7,533 Words | 23 Pages
  • chlorophyll lab report - 1231 Words
    Alyssa Caparelli Organic Chemistry 12A Professor Alston October 28, 2014 Isolation of Chlorophyll and Carotenoid Pigments from Spinach Purpose The purpose of this experiment was to isolate ß-carotene, chlorophyll-A, and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol, and the pigments were extracted with dichloromethane. The spinach extracts were dried using CaCl2. Then, the solid pigments were run through a column using a non-polar solvent,...
    1,231 Words | 6 Pages
  • Formal Report on Re Crystallization
    RECRYSTALLIZATION Group Medical Technology Organic Chemistry Laboratory ABSTRACT Recrystallization is one of the simplest and most widely used technique for purifying organic solids through the differences in solubility at different temperatures. It is also the process in which the solid to be crystallized is dissolved to either a hot solvent or a hot solvent mixture and is cooled in a solution.In this experiment, acetanilide, the crude product of acetylation of aniline and acetic...
    2,647 Words | 10 Pages
  • Separation and Identification of Organics from an Aqueous/Organic Environment through Physical Manipulation
     Separation and Identification of Organics from an Aqueous/Organic Environment through Physical Manipulation Date Lab Performed: Nov. 11/2013 Date Lab Submitted: Nov. 18/2013 Introduction We conducted this experiment to investigate the technique of liquid / liquid extraction, the miscibility of organics and water and the effect of a mixture of compounds in methylene chloride versus pure compounds retention time as...
    844 Words | 6 Pages
  • Report Science - 1416 Words
     Introduction: Doing laundry has been a common household activity for years. Whether the techn­ology­ was­ beating the garments on rocks by the river or pushing buttons on programmed washing machines, this process depends on water and a mechanical action usua­lly assisted by soap or detergent. The purpose of a detergent is to remove ordinary stains and other matter. More often­ than not, the soap/detergent agent holds stains in suspension as they becomes loose during the wash cycle, and are...
    1,416 Words | 6 Pages
  • Senior Science Notes - 2290 Words
    1. LIFESTYLE CHEMISTRY -many consumer products have been developed because of increased understanding of chemical substances, chemical reactions & the biochemistry of human body surfaces -some products are used as cleaning agents while others have been developed to act as barriers against environmental factors like wind and heat -some products are mixtures, used for medicinal purposes, & require a different understanding of body chemistry & chemical interaction -production of...
    2,290 Words | 8 Pages
  • Stress and Cellular Membranes - 1473 Words
    Stress and Cellular Membranes Bio Lab SBI 4U1 Due: Sept 24th, 2010 For: Ms. Barton By: Ameema Saeed Introduction: (See attached lab) Purpose: (See attached lab) Hypotheses: Tap water will cause no damage to the membranes. The extreme temperatures of the water cooled to 0°C, and heated to 94-100°C will greatly damage the membranes. Extreme heat will be more damaging than extreme cold. The more concentrated the solvent, the more damage it will cause to the membranes, therefore...
    1,473 Words | 6 Pages
  • Nutmeg Extraction - 287 Words
    Nutmeg Extraction Summary Extraction of Trimyristin from Nutmeg Extraction of Trimyristin fat from powdered nutmeg 5.4 Natural Product Experimental Procedures: Set up reflux apparatus. Place 4grams of ground nutmeg in a 50 mL round bottom flask. Add 10 mL of diethyl ether Heat the mixture for half an hour Allow to cool to room temperature Filter using gravity filtration (suction if too slow) Add 2-4 mL of diethyl ether Distill the diethyl ether Dissolve the...
    287 Words | 2 Pages
  • Post Lab - 358 Words
    Solubility, Crystallization and Melting Point Determination Post-Lab Discussion Guidelines: Part 2A and 2C: Draw tables (as in textbook) showing which combinations were soluble/miscible and which were insoluble/immiscible. Explain why this is so. Why are certain chemicals soluble/miscible when others are not? Part 3A: Calculate % recovery (this is not the same as % yield – see handout from the first day of lab if you’re confused), and determine melting point of your product. Discuss %...
    358 Words | 2 Pages
  • Methyl Ethyl Ketone Sampat
    Special Report Methyl ethyl ketone – A techno-commercial profile M ethyl ethyl ketone (MEK or 2-butanone) is an organic compound with the formula CH3C(O)CH2CH3. Its CAS number is 78-93-3. The colorless liquid ketone has a sharp, sweet odour of butterscotch and acetone. It is produced industrially on a large scale, and also occurs in trace amounts in nature. It is soluble in water and is commonly used as an industrial solvent. With natural and synthetic resins, MEK produces solutions with low...
    1,833 Words | 18 Pages
  • Chem 31.1 Expt 1 AtoQ
     Answers to Questions 1. For solutes that are dissolved because of intermolecular attractions with the solvent, state the intermolecular attractions involved. Intermolecular Attractions F There are dipole-dipole attractions and hydrogen bonding between polar acetone and polar water. J There are dipole-dipole attractions and hydrogen bonding between ethanol and water. There are also dipole-dipole attractions between ethanol and diethyl ether. L There are hydrogen bonding,...
    421 Words | 4 Pages
  • Study guide for quiz - 6045 Words
    Melting Point Definition of the melting point of a pure compound The melting point of a pure solid organic compound is one of its characteristic physical properties (a pure solid will melt reproducibly over a narrow range of temperatures, typically less than 1ºC Define Eutectic point (two ways) and the eutectic temperature Definition with regard to melting point composition diagram: lowest point on mp. Composition diagram where a mixture has a very narrow melting range Definition with regard...
    6,045 Words | 19 Pages
  • Organic Chemistry Lab - 360 Words
    Organic Chemistry Laboratory Report. Experiment 1: Crystallization. Objectives: 1. To study the crystallization process. 2. To identify the best suitable solvent to use for the crystallization process. 3. Gain an experience in purifying an organic compound by the techniques of the crystallization. Introduction. Crystallization is a technique which chemists use to purify solid compounds. It is one of the fundamental procedures each...
    360 Words | 2 Pages
  • The Friedel-Crafts Reaction: Acetylation of Ferrocene
    THE FRIEDEL-CRAFTS REACTION: ACETYLATION OF FERROCENE Ferrocene was acetylated in acetic anhydride and phosphoric acid. It proceeded via a Friedel-Crafts reaction without the use of organic solvents or strong Lewis acid. Operations and Observations A mixture of ferrocene (1.5 g, 0.008 mol), acetic anhydride (5 mL) and phosphoric acid (1 mL 85%) was heated over a steam bath until all the ferrocene dissolved and the mixture darkened from orange to dark red. The mixture was then refluxed...
    856 Words | 3 Pages
  • Organic and Inorganic Compounds - 335 Words
    Comparison between Organic and Inorganic Compounds Organic Compounds | Inorganic Compounds | *Organic Compounds are composed of few elements only.C, H,O,N,S,P and halogens are the most common. | * Inorganic Compounds are composed of all the known elements. | *They are generally found in living matter, i.e., animals and plants. | *They are generally obtained from non-living matter, i.e., minerals. | *They are usually gases, liquids or solids having low melting points. | *They are usually...
    335 Words | 1 Page
  • Nucleophilic Substitution - 1771 Words
    Nucleophilic Substitution Samantha Gutierrez Nucleophilic Substitution Introduction: The purpose of this lab is to investigate how different factors affect the rate of SN1 and SN2 reactions. SN2 reactions proceed via a one step mechanism in which the incoming nucleophile attacks the electrophilic carbon center from the opposite side of the leaving group. This reaction mechanism implies that the stereochemistry of a chiral center will be inverted. SN1 reactions proceed via two steps,...
    1,771 Words | 5 Pages
  • Qualitative Lab Report - 1707 Words
    Tessa Landauer Chemistry 0340 Qualitative Analysis Shaopeng Zhang January 26, 2015 I submit this laboratory report as an original document. I assert that all ideas and discussion of data contained herein is my own work unless otherwise referenced. Tessa Landauer Abstract The goal of the experiment was to isolate and purify the unknown D liquid and solid by using its acidic and basic characteristics in a chemically active extraction then to identify the unknowns by analyzing the physical...
    1,707 Words | 7 Pages
  • Extraction - 350 Words
    Introduction I. Goal a. The goal of the Extraction lab is to separate and purify benzoic acid, 2-naphthol, and naphthalene. These organic solids are purified by partitioning the solid in 2 immiscible solvents, diethyl ether and sodium bicarbonate or sodium hydroxide. II. Significance a. The significance of the Extraction lab is to purify Acetanilide benzoic acid, 2-naphthol, and naphthalene by determining the partition coefficient. This value is determined by dividing the solubility of...
    350 Words | 2 Pages
  • solubility - 357 Words
    A supersaturated solution is a solution that contains more dissolved substance than a saturated solution does. This occurs when a solution is prepared at a higher temperature and is then slowly cooled. This is a very unstable situation, so any disturbance causes precipitation. Solubility can be understood in terms of two factors: The natural tendency toward disorder favors dissolving. The relative forces between and within species must be considered. Stronger forces within solute...
    357 Words | 2 Pages
  • Chem Lab - 858 Words
    Experiment #4A- A Separation and purification Scheme Amena Alkeswani, PHCC Dhanlal Murally, PHCC September 27, 2012 Abstract: There are millions of different organic compounds. Most of them are found in mixtures and in order to achieve a pure form they need to be separated, isolated, and purified. However, there are endless numbers of possible mixtures, which make it impossible to have a pre-designed procedure for every mixture. So chemists often have to make their own procedures. The...
    858 Words | 3 Pages
  • Comparative Study of the Properties of Organic Compounds Through Various Tests
    COMPARATIVE STUDY OF THE PROPERTIES OF ORGANIC COMPOUNDS THROUGH VARIOUS TESTS Johanna Lynne La Rosa, Denise Gianelli Lopez, Anna Reyzell Lundang, Marlon Mallillin III and Jacinto Mari Manual Group 5 2E Pharmacy Organic Chemistry Laboratory ABSTRACT Organic compounds have been subjected to comparative investigation to differentiate the behaviour of one from the other. The physical state at room temperature, odor and color of the samples were noted by simple observation. The...
    1,719 Words | 7 Pages
  • Chromotagraphy - 1453 Words
    Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase, those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas...
    1,453 Words | 9 Pages
  • Gravimetric anaylsis - 566 Words
    Title: Gravimetric Analysis of Lipids Introduction: To be used as a nonpolar solvent to bring out the contents of fat in the oil. Gravimetric analysis is a preferred method of measuring total lipids in mg sample size. Lipids are recovered after evaporation of extracting solvents as an advanced method; isolated lipids can be fractionated and analyzed by colorimetric analysis or gas chromatography 1. Extraction oil from seed (canola oil, corn oil) 2. Extract fat soluble vitamins 3....
    566 Words | 3 Pages
  • Isolation of Caffeine from Coffee
    ------------------------------------------------- Isolation of Caffeine from Coffee Date of laboratory work: 10/9/2012 5:00-7:45 Date of report written: 10/15/2012 Introduction: The purpose is to isolate caffeine from coffee by using the organic solvent dichloromethane (CH2Cl2) that is also referred to as direct contact. Calcium carbonate (CaCO3) is used to remove the tannins from the coffee. Afterwards an extraction is used to separate the organic layer (bottom)...
    873 Words | 4 Pages
  • Solubility - 1002 Words
    p. 1 Megan Ly Chemistry 231L February 20, 2013 SOLUBILITY Purpose: To better comprehend solubility behavior by investigating the solubility of various substances in different solvents, looking at miscible and immiscible pairs of liquids, and observing the solubility of organic acids and bases....
    1,002 Words | 32 Pages
  • Solubility Postlab Report - 831 Words
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