Name: Date: Lab Section: Selected Known Compounds Name Structural Formula Literature Melting Point Acetanilide C8H9NO 114.3°C Fluorene C13H10 116.5°C Experimental Data Sample Composition 1. 100% Acetanilide 2. 10% Acetanilide 3. 25% Acetanilide 4. 50% Acetanilide Fluorene 5. 75% Acetanilide 6. 90% Acetanilide 7. 100% Fluorene Melting Range 108-116°C 108-112°C 105-112°C 102-109°C 105-112°C 109-115°C 108-114.5°C Graph of Data Discussion
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how to dry them and how to obtain a melting point. PRECAUTION: ACETANILIDE AND PHENACETIN ARE EYE AND SKIN IRRITANTS. Minimize contact with your unknown compound. THEORY: In this experiment‚ Panacetin‚ a pharmaceutical preparation will be separated from its components by making use of their solubilities and acid-base properties. Panacetin contains aspirin‚ sucrose and an unknown component that may be either acetanilide or phenacetin. Of the three components‚ only sucrose is insoluble
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RECRYSTALLIZATION OF ACETANILIDE De Ocampo‚ Yves Aaron Julian Q.‚ Dela Vega‚ Roderick B. Jr.‚ Elguira‚ Cedric Tristan D. Enriquez‚ Joanne B.‚ Gabat‚ John Elliot N. Group 5 2D-Medical Technology Faculty of Pharmacy‚ University of Santo Tomas ABSTRACT The experiment was executed in order to purify compounds through recrystallization. Recrystallization is the primary used operation for purifying solid organic compounds that differ in solubility at different temperature. It is a process of dissolving
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Nitration of Acetanilide Introduction When organic compounds are nitrated it changes the composition and reaction of the compounds.[4] We could benefit from these changes‚ nitration of acetanilide produces a product called p- Nirtoanoline. P-Nitroaniline is commonly used as an intermediate in the synthesis of dyes‚ antioxidants‚ pharmaceuticals and gasoline. P-Nitroaniline is also used in gum inhibitors‚ poultry medicines and as a corrosion inhibitor. [2] Nitration is a type of chemical
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experiment was to illustrate electrophilic aromatic substitution by synthesizing p-nitroanilide (as well as ortho) from acetanilide by nitration. The para form was separated from the ortho form based on solubility properties using recrystallization techniques. Synthetic equations: Physical Properties & Hazards of Reagents/Products: (all taken from Sigma-Aldrich website) Acetanilide MM = 135.16 g/mol Melting point = 113-115°C Hazards: acute toxicity Sulfuric acid MM = 98.08 g/mol Boiling
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its melt point to the two other possible substances. Theory Panacetin should be made up of about 50 percent of the unknown component that we previously separated out of Panacetin for testing. We suspect that this unknown compound is either acetanilide or phenacetin. From the solubility of acetaminophen and phenacetin‚ we could know both of them are relatively soluble in boiling water but insoluble in cold water so that we took the recrystallization as the method to purifying the unknown component
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techniques to make an impure sample pure is by recrystallization. This experiment includes the determination of a good solvent for recrystallization for compounds such as: acetanilide‚ acetamide‚ aspirin‚ benzoic acid‚ naphthalene‚ and sucrose‚ for solvents such as: water‚ ethanol‚ benzene‚ and ethyl acetate. Also pure acetanilide is achieved. here are five major steps in the recrystallization process: dissolving the solute in the solvent‚ performing a gravity filtration‚ if necessary‚ obtaining crystals
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Chung (Vincent) Lab Partner: Ma‚ Siyin Date: 2/3/2013 Introduction: The purpose of this experiment is to investigate the composition of compounds in Panacetin. Generally‚ it is made up of sucrose‚ aspirin and an unknown component‚ either acetanilide or phenacetin. SinceBy using different techniques‚ such as filtration‚ extraction‚ and evaporation‚ those three components have been isolated out‚ which is based on varies solubility and acid-based properties. The percentage of composition of Panacetin
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a proposed type of pain-killer. Panacetin is typically made up of sucrose‚ aspirin‚ and acetaminophen‚ but the third component in this experiment is unknown. The unknown component is suspected to be a chemical relative of acetaminophen‚ either acetanilide or phenacetin. Using techniques such as extraction‚ evaporation‚ and filtration‚ the three components will be isolated based on their solubilities and acid-base properties. The percent composition of Panacetin will also be deduced based on the masses
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supplemental material from Zubrick‚ The Organic Chem Lab Survival Manual. (2) Draw the structure of acetanilide and report relevant physical data. Be sure to cite the source of the data. You should be able to figure out what’s relevant by reading the procedure. (3) Find and report the boiling points of the solvents you will be using for this experiment. (4) Outline the steps in the recrystallization of acetanilide. Recrystallization involves dissolving a solid in a solvent and crystallizing it again‚ taking
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