...Abstract Fractional distillation was used to separate an ethanol mixture and determine the percent of ethanol. A fractional distillation apparatus with copper turnings in the fractionating column was used to separate the ethanol mixture. The mixture was heated to a boil (78.1*C) and began to drip distillate into the receiving flask. A sample of the distillate was taken and a pipet was used to measure out 1 mL of the substance. The weight of the 1 mL was determined to be 0.82grams. The density of the sample was calculated at 0.82g/mL of ethanol. The percentage of ethanol solved to be 85% ethanol. Introduction The purpose of this experiment was to identify the unknown percentage of ethanol in the ethanol mixture. Fractional distillation was used to separate the ethanol mixture into two components. The copper turnings in the fractional distillation column allowed for the vapors from the boiling mixture to be repeatedly filtered through the system. The repeating of the vapor process is what allows for separation of two components in a mixture with close boiling points. By separating the mixture between precise boiling points and then collecting a sample of the distillate from the round bottom receiving flask to weigh, the density can be determined. With the density known the ethanol percentage can be easily determined with table on page 129, (Pavia, Small Scale Approach to Laboratory techniques). Results To determine the percent of the ethanol in the mixture...
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...Experiment 1: Fractional Distillation of Ether from 1,2-Dimethoxyethane & Gas Chromatography Performed September 13th & 15th, 2011 By Jennifer Seitz Organic Chemistry 344 Section 803 Fall 2011 Objective: The purpose of this experiment was to fractionally distill an Ethyl ether/1, 2-Dimethoxyethane mixture, collect and plot various fractions of temperature vs. volume of different distillate, and make comparisons between the different packing materials tested. Physical Properties/Structures: Compound | Formula | Molecular Weight (g/mol) | Boiling Point (oC) | Hazards | Diethyl ether | (C2H5)2O | 74.12 | 34.6 | - Flammable- Skin irritant- Affects CNS | 1,2-Dimethoxyethane | C4H10O2 | 90.12 | 85.0 | - Flammable- Skin/eye irritant- Affects Respiratory System | Equations: Not applicable for this lab. Procedure: Part I: 1. A fractional distillation apparatus was setup using 6 mm glass beads as the packing material. 2. 60 mL of 1:1-Ethyl ether: 1,2-Dimethoxyethane and 3 boiling stones were placed into the distilling flask. 3. The flask was heated using a heating mantle. The power was started at approximately 60% and water was turned on beforehand as to prevent the glass from burning and possibly cracking. 4. The mixture was distilled at a rate of approximately 1-2 drops/second. During the distillation procedure, the temperature was recorded for approximately every 5 mL of distillate collected. 5. Ten 5 mL fractions were...
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...Introduction Distillation is a procedure that has been used for many centuries as a separation technique to isolate liquids with different boiling points and vapor pressure. The idea of distillation generally involves the conversion of a solvent into a vapor then back to a solvent based on vapor pressure. The liquid with the lowest boiling point and highest vapor pressure would be collected first (Weldegirma,2017). There are various distillation methods, however the two methods utilize in this experiment are: simple and fractional using cyclohexane and Toluene. Simple distillation is more efficient when the boiling points are more than 25℃ difference and fractional distillation is more effective in separating liquids with boiling point less...
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...Simple and Fractional Distillation I. Introduction Distillation is one of the oldest and still most common methods for both the purification and the identification of organic liquids. It is a physical process used to separate chemicals from a mixture by the difference in how easily they vaporize. As the mixture is heated, the temperature rises until it reaches the temperature of the lowest boiling substance in the mixture, while the other components of the mixture remain in their original phase in the mixture. The resultant hot vapor passes into a condenser and is converted to the liquid, which is then collected in a receiver flask. The other components of the mixture remain in their original phase until the most volatile substance has all boiled off. Only then does the temperature of the gas phase rises again until it reaches the boiling point of a second component in the mixture, and so on. There are two types of distillation namely simple distillation and fractional distillation. In this experiment the efficiency of the two types of distillation will be compared. II. Methodology The following is the methods needed to perform fractional distillation. The gather the materials needed for the experiment such as the fractional distillation set-up, alcohol lamp, and vodka after which start performing the experiment. 1. Assemble the distillation set-up. 2. Prepare atleast 30 test tubes calibrated down to the 0.5 ml and number each test tube accordingly...
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...Sublimation 3. Distillation 4. Chromatography 5. Differential Extraction 6. Qualitative Analysis 5. 1. CRYSTALLIZATION Aim To separate a solid compound in pure and geometrical form. Principle A saturated solution of the impure substance in a suitable solvent is made at a temperature higher than the room temperature. On cooling this solution, the substance reappears in the form of well shaped crystals. Process Purification by crystallization involves the following steps: Choice of solvent Preparation of solution Filtration of the solution Separating the crystals Drying of crystals Example Crystallisation of Phthalic acid 6. 2. SUBLIMATION Aim To separate volatile solids, which pass directly into vapour state on heating from a non-volatile solid. Principle A mixture of solid substances, such as camphor, benzoic acid, ammonium chloride, iodine etc., containing non-volatile substances, when heated, change directly into vapour without passing through the liquid state. Process 7. Fig :-Sublimation 8. 3. DISTILLATION Aim To separate a solution of a solid in a liquid and for separating a solution of two liquids whose boiling points are different. Principle Distillation involves the conversion of a liquid into its vapors upon heating and then cooling the vapors back into the liquid. Depending on the difference in boiling points of liquids. Types of distillation Simple Distillation Fractional Distillation Distillation Under Reduced Pressure or Vacuum Distillation Steam Distillation 9....
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...Iris Lopez Experiment 6: Fractional Distillation. Separation of Petroleum Hydrocarbons Abstract: A mixture of cyclohexane and toluene were separate from one another by fractional distillation in order to measure the composition of each fraction and prepare the sample for gas chromatography. Introduction: Distillation has been used since antiquity to separate the components of mixtures. This method has been used to manufacture different organic chemicals but the most recent application is the refining of petroleum in order to produce fuels, lubricants and petrochemicals. In this experiments, the separation of 2 distilates were carried out using the differences in boiling points and the data was used for a gas chromatography test. Objectives: Separation of an equimolar mixture of cyclohexane and toluene by fractional distillation Materials: Equimolar mixture: cyclohexane/toluene Water Distilling columns Column packing Thermometer heat source flasks heat source Structural Formulas: toluene Description: The fractional distillation apparatus was checked for any moisture before it was set up to ensure proper distillation method. A mixture of cyclohexane and toluene was obtained, 40ml of an equimolar mixture was obtained and transferred into a 100ml round bottomed boiling flask which contained boiling chips, and the distilling column was packed with metal sponge. The distillation apparatus was assembled and...
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...Simple and Fractional Distillation Authors: Abion, T.J.J., Aganda, J.C., Alpay, R.F., Berboso, M.J.R., Casuga, J.M.D. (Group01-2A-BC) Abstract Distillation is the process of converting a liquid to a vapor, condensing the vapor, and then, collecting the distillate in another container. More about distillation will be discussed in the introduction. This experiment was carried out to differentiate simple from fractional distillation, to separate the components of an alcoholic drink, and to calculate the percentage of ethanol present in an alcoholic beverage. The group is assigned to do simple distillation. The computations performed for this experiment are the percent alcohol and percent loss. Percent alcohol determines the percentage of ethanol found in the beverage, while percent loss ascertains the amount of sample lost while doing the experiment. The experiment follows the distillation process to flammability test. The experiment follows as is in the procedure with some difficulties that will be seen in the latter part. Introduction Distillation is the process of purifying compounds by means of separating more volatile substance from non-volatile or less volatile substance. The analysts performed one of the two types of distillation processes- the simple distillation and fractional distillation. In simple distillation, the vapor emerging from the evaporating surface moves uniformly without contacting condensed liquid until they reach the condensing surface. Thus...
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...Distillation and Gas Chromatography Goal: The goal of today’s experiment is to collect three different fractions for each distillation by separating two different volatile solutions. Once the fractions are collected, we will record the boiling point range and perform a gas chromatography an original mixture along with the three different fractions that were collected. Significance: This lab is very important if someone needs to separate two different volatile solutions. They can do the simple and fractional distillation, and then using the gas chromatography and compare with other people. This lab basically just teaches you how to separate solutions. During the separation process, there are some factors that must be taken in account, such as: vapor pressure, how polar is our compound, what our temperature for the column is and how long the column is. 1 Theory:...
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...INTRODUCTION Distillation is a technique widely used in organic chemistry for separating compounds based on differences in their boiling points. The experiment is divided into two parts: simple distillation, an easy set-up where a solution or a mixture of substances with different volatility is separated through exposure heat; and fractional distillation, which under goes a series of evaporation and condensation process to purify more complex mixtures. Raoult and Dalton Law are the two principles involving with this experiment. The former states that the vapor pressure of a solvent above a solution is equal to the vapor pressure of the pure solvent at the same temperature scaled by the mole fraction of the solvent present. While the latter states that the total pressure of a gas in a container is the sum of the partial pressures of the individual gases in the container. In this experiment, the group performed a fractional distillation set-up. At the end of the day, they were able to attain the following objectives: differentiate simple from fractional distillation, separate the components of an alcoholic beverage and calculate the percentage of ethanol in a beverage. EXPERIMENTAL A. Compounds tested The compound or sample used in this experiment was vodka (alcohol). Vodka (35%–50%) was originally distilled from fermented wheat mash but now also made from a mash of rye, corn, or potatoes. In chemistry, an alcohol is an organic compound in which the hydroxyl functional...
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...The Determination of Percentage Ethanol from Gin Vodka by Simple Distillation *Bejasa,B. ; Beltran,R. ; Bombase,M. ; Bunyi,C. ; Canlas,L. 2BMT Abstract Vodka is composed primarily of water and ethanol with traces of impurities and flavourings and naturally has an alcoholic content of 38-40% by volume. This experiment aimed to determine the percent ethanol of the vodka through simple distillation. A 30mL of the sample was collected and heated through the use of alcohol lamp. A collection of 0.50mL of distillate was continuously made while recording its corresponding temperature until the sample reached 100°C. Through the obtained data, the percentage ethanol was computed (5.0%). Introduction Vodka is a clear liquor manufactured from ethyl alcohol. It is said to have been originally created from potatoes in Russia for medicinal purposes. Nowadays, Vodka is distilled from barley, wheat or rye. Most flavoured vodka contains 30-35% alcohol, whereas clear vodka is normally 40%, with a few brands offering a 50% product on top(1). Its percentage ethanol can be determined through the use of a simple distillation set-up. Simple distillation is designed to evaporate a volatile liquid from a solution of non-volatile substances(2). The first mention of the process of simple distillation appears in India and China around 800 B.C. in the production of beer and rice wine. At present time, simple distillation helps make production simple and economical, creating more products for consumers(3)...
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...Simple Distillation: A Test on the Amount of Ethanol Present in Vodka By: Morales, Michah A. Ogsimer, Juk Rances F. Pacia, Carissa Jenelle Y. Panganiban, Aean Genesis R. Rabang, Maika I. 2B-Medical Technology, Faculty of Pharmacy, University of Santo Tomas ABSTRACT Distillation is a technique in separating two liquid components. There are two types of distillation used in this experiment known as the simple and fractional distillation. The objective of this experiment was to be able to determine the amount of Ethanol in the given Alcoholic beverage known as Vodka by using the Simple Distillation Method. The group added 15 mL of Vodka in the distilling flask and heated it in a circular motion using an alcohol lamp and collected them in 10 test tubes labelled with a 0.5 mL mark. The first 0.5mL was obtained at 84°C and the last at 100°C. They then tested its flammability using the first 0.5 mL, which tested flammable, and the last 0.5 mL collected, testing inflammable. The computations from the data gathered, shows us 13.3% EtOH, a proof of 26.7% EtOH and 30% loss. INTRODUCTION In this experiment, each group was to use the types of distillation in order to separate the components of an alcoholic beverage known as Vodka. What is Distillation? And what are the two types of distillation used in this experiment? Distillation is a process of converting liquid to vapour, condensing it, and collecting the distillate in another container. It is used to separate components in a...
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...column chromatography, TLC, paper chromatography, and gas chromatography. Paper chromatography is one of the important chromatographic methods. Paper chromatography uses paper as the stationary phase and a liquid solvent as the mobile phase. In paper chromatography, the sample is placed on a spot on the paper and the paper is carefully dipped into a solvent. The solvent rises up the paper due to capillary action and the components of the mixture rise up at different rates and thus are separated from one another. Distillation Simple distillation is a method used for the separation of components of a mixture containing two miscible liquids that boil without decomposition and have sufficient difference in their boiling points. The distillation process involves heating a liquid to its boiling points, and transferring the vapours into the cold portion of the apparatus, then condensing the vapours and collecting the condensed liquid in a container. In this process, when the temperature of a liquid rises, the vapour pressure of the liquid increases. When the vapour pressure of the liquid and the atmospheric pressure reach the same level, the liquid passes into its vapour state. The vapours pass over...
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...SIMPLE DISTILLATION OF VODKA (THE BAR) Somo, John Carlo , Sopoco, Marc Andrew , Sotong, Patricia , Venturina, Flian Lyra , Tia, Queenie de Leon 2B- Medical Technology Faculty of Pharmacy UST ABSTRACT Distillation is the method used for purifying liquids and separating mixtures of liquids into their individual components. The experiment targets to differentiate the two methods; simple and fractional distillation, to separate its water and alcohol components, and to determine the percentage of ethanol present in the vodka using simple distillation. A volume of 15mL vodka was poured into the distillation flask for heating/boiling by the alcohol lamp. 0.50 ml of distillate was collected in every calibrated test tube until the temperature reached 100 C. The initial/first and the final distillates were kept for the testing of flammability. The first distillate was the one containing the ethanol since it is flammable, while the other one is inflammable so it is the one with the purified water content. INTRODUCTION Distillation is the method of converting a liquid to vapor, condensing the vapor, and collecting the distillate in another container. It is used to separate liquids from nonvolatile solids, as in the separation of alcoholic liquors from fermented materials, or in the separation of two or more liquids having different boiling points, as in the separation of gasoline, kerosene, and lubricating oil from crude oil. In the modern organic chemistry laboratory, distillation is a...
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...Bituminous Material Bituminous materials or asphalts are extensively used for roadway construction, primarily because of their excellent binding characteristics and water proofing properties and relatively low cost. Bituminous materials consists of bitumen which is a black or dark colored solid or viscous cementitious substances consists chiefly high molecular weight hydrocarbons derived from distillation of petroleum or natural asphalt, has adhesive properties, and is soluble in carbon disulphide. Tars are residues from the destructive distillation of organic substances such as coal, wood, or petroleum and are temperature sensitive than bitumen. Bitumen will be dissolved in petroleum oils where unlike tar. Importance and background of Bituminous Material: Bitumen is an essential component of any pavement and is used widely throughout the world. It can be termed as the building block of the pavements without which all the pavement materials would behave independently and thus will be deemed useless. Almost ninety percent of bitumen is used in road construction. It is usually available in dark colors ranging from brown to black. The main purpose of bitumen in flexible pavements is to strongly bind and hold the other pavement components together and provide a smooth and leveled surface for the moving vehicles. Bitumen is a naturally occurring material and is found in large quantities in the solid or semi solid forms of petroleum. It is also manufactured artificially in vast...
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...Introduction (Experiment 1) Distillation is a process involving the conversion of a liquid into a vapor that is later on condense back to liquid form for collection of distillate. It is used to separate the components of a liquid from non volatile solids or those liquid having different boiling points which will be seen on this experiment. (Abdullah, M.G. et. al (2013, December 15) distillation. http://www.britannica.com/EBchecked/topic/166098/distillation) This method is used to purify a liquid. There are four type of distillation methods such as simple distillation, fractional distillation, vacuum distillation and clean distillation but we will focus more on the simple distillation for this experiment. Simple distillation has a simpler setup compared to other types of distillation, is faster, and consume less energy than the other types. In contrast, it requires the liquids to have boiling point differences and less accurate. It only best in separating pure liquid with large boiling point differences or liquid having solid impurities. (Zubrick, J.W. (1997) Chapter 20: Distillation for Dummies.https://www.erowid.org/archive/rhodium/chemistry/equipment/distillation4dummies.html) We need to know how this things get possible. There are two principles involved in simple distillation, the Raoult's law. Raoult's Law states that the partial vapor pressure of a component in a mixture is equal to the vapor pressure of the pure component at...
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