acetic anhydride salicylic acid formula

What is the synthesis reaction for aspirin?

Salicylic acid is a common organic reagent and has an alcohol group on it which will react with the carboxylic acid group of the acetic acid The reaction produces aspirin (acetylsalicylic acid) along with water as a side product However because of the water side product this method does not work very well If acetic anhydride is substituted

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Salicylic Acid

Salicylic Acid is a small aromatic acid whose chemical name is monohydroxybenzoic acid It is lipophilic in nature It was first derived from the bark of Willow Tree Salicylic Acid exist as clear white or colourless and odourless needle-shaped crystals at room temperature Explore more about uses Structure and method of preparation at vedantu

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Everyday Compounds – Salicylic Acid – Compound Interest

Mar 17 2014Salicylic acid is one of the organic compounds from which aspirin can be synthesised As shown below it can be reacted with acetic anhydride using a sulfuric acid or phosphoric acid catalyst to produce aspirin and acetic acid as a side product Aspirin is used as an analgesic to relieve minor aches and pains and as an anti-inflammatory agent

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Carboxylic acid

A carboxylic acid is an organic compound that contains a carboxyl group (C(=O)OH) The general formula of a carboxylic acid is R–COOH with R referring to the alkyl group Carboxylic acids occur widely Important examples include the amino acids and acetic acid Deprotonation of a carboxyl group gives a carboxylate anion

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How to Make Aspirin: Acetylsalicylic Acid

Accurately weigh 3 00 grams of salicylic acid and transfer to a dry Erlenmeyer flask If you will be calculating actual and theoretical yield be sure to record how much salicylic acid you actually measured Add 6 mL of acetic anhydride and 5-8 drops of 85% phosphoric acid to the flask Gently swirl the flask to mix the solution

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salicylic acid acetic anhydride acetylsalicylic acid

salicylic acid acetic anhydride acetylsalicylic acid (aspirin) acetic acid Preparation of acetylsalicylic acid 2 13C NMR spectra give simple patterns Each unique type of carbon atom in a molecule will give a different peak in the spectrum The position of the peak (chemical shift measured in ppm) gives information about

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Acetic anhydride

By formula: C 4 H 6 O 3 + C 9 H 13 N 3 O 5 = C 11 H 15 N 3 O 6 + C 2 H 4 O 2 Quantity Value Chimishkyan A L Reversible reactions in the acidolysis of methyoxyacetic acid by acetic anhydride Russ J Phys Chem (Engl Transl ) 1991 65 1049-1059 In original 1974 Knopp Linnell et al 1962 Knopp

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Percentage Yield of salicylic acid and acetic anhydride

Dec 19 2009When 2 5 g of salicylic acid (2-hydroxybenzoic acid) was reacted with 2 6 g of acetic anhydride and the resultant aspirin purified by crystallization the mass of aspirin obtained was 3 0 g The percentage yield is: a 84% b 82% c 92% d 78% e 66%

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Salicylic acid

Salicylic acid (from Latin salix willow tree) is a lipophilic monohydroxybenzoic acid a type of phenolic acid and a beta hydroxy acid (BHA) It has the formula C 7 H 6 O 3 This colorless crystalline organic acid is widely used in organic synthesis and functions as a plant hormone It is derived from the metabolism of salicin In addition to serving as an important active metabolite

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Lab 1: Synthesis of Acetylsalicylic Acid (Aspirin) Using

Jan 30 2013Aspirin is an analgesic anti-inflammatory drug It is one of the oldest and widely used drugs in medicine Aspirin is synthesized by using acetic anhydride or acetyl chloride to acetylate salicylic acid In this experiment acetic anhydride was used Salicylic acid is not an analgesic due to its acidity and damaging ability of mucous membranes

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4

Mass of salicylic acid is required to produce 50 g aspirin to be determined Concept Introduction: Aspirin is the chemical obtained from the reaction of salicylic acid with acetic anhydride 75 % is aspirin produced from salicylic acid means 100 g of salicylic acid is producing 75 g aspirin

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Experiment 5

stomach than salicylic acid To prepare aspirin salicylic acid is reacted with an excess of acetic anhydride A small amount of a strong acid is used as a catalyst which speeds up the reaction In this experiment phosphoric acid will be used as the catalyst The excess acetic acid will be quenched with the addition of water

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Carboxylic acid

A carboxylic acid is an organic compound that contains a carboxyl group (C(=O)OH) The general formula of a carboxylic acid is R–COOH with R referring to the alkyl group Carboxylic acids occur widely Important examples include the amino acids and acetic acid Deprotonation of a carboxyl group gives a carboxylate anion

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ACETIC ANHYDRIDE (ACETYL ETHER)

Carbon dioxide (CO 2) is the anhydride of carbonic acid dinitrogen pentoxide (N 2 O 5) is the anhydride of nitric acid sodium oxide is an anhydride of sodium hydroxide phosphorus pentoxide (P 2 O 5) is the anhydride of phosphoric acid and sulfur trioxide (SO 3) is the anhydride of sulfuric acid An a cid anhydride forms an acid a base

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Material Safety Data Sheet

Synonyms: Acetic oxide Acetyl oxide Ethanoic anhydride Acetic acid anhydride Company Identification: Fisher Scientific 1 Reagent Lane Fair Lawn NJ 07410 For information call: 201-796-7100 Emergency Number: 201-796-7100 For CHEMTREC assistance call: 800-424-9300 For International CHEMTREC assistance call: 703-527-3887

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C4H6O3+C7H6O3?C9H8O4+C2H4O2

Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (C2H4O2) The balanced equation is: C4H6O3+C7H6O3→C9H8O4+C2H4O2 In a laboratory synthesis a student begins with 5 00 mL of acetic anhydride (density = 1 08 g / mL) and 2 08 g of salicylic acid

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8

an acid catalyst The phenol group on the salicylic acid forms an ester with the carboxyl group on the acetic acid However this reaction is slow and has a relatively low yield If acetic anhydride is used instead of acetic acid the reaction is much faster and has a higher yield (since acetic anhydride is much more reactive than acetic acid)

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Material Safety Data Sheet

Material Safety Data Sheet Salicylic acid ACC# 20315 Section 1 - Chemical Product and Company Identification: MSDS Name: Salicylic acid Catalog Numbers: AC147700000 AC147700010 AC385730000 AC419220000 AC419220020 Molecular Formula:C7H6O3 Molecular Weight:138 12 Section 10 - Stability and Reactivity

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Esterification of Salicylic Acid: The synthesis of cool

salicylic acid acetic anhydride eq 1 However salicylic acid also has an electrophilic carbon atom as part of its carboxylic acid functional group Thus salicylic acid can react with nucleophilic molecules like methanol in addition to reacting with electrophilic molecules like acetic anhydride The reaction of a carboxylic acid with an

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PREPARATION OF ACETYLSALICYLIC ACID (ASPIRIN)

temperatures aspirin hydrolyzes (i e reacts with water) to decompose into salicylic acid and acetic acid Acetic acid has a characteristic pungent smell The detection of this odor depends on the assumption that all of the acetic acid (which

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Aspirin Synthesis Lab Analysis

To begin the experiment 2 00 g of salicylic acid (formula weight of 138 12 g/mol) 5 0 mL of acetic anhydride (density of 1 082 g/mL) and 5 drops of phosphoric acid were mixed in a 150mL Erlenmeyer flask which was then placed in a beaker containing de-ionized (DI) water heated to 75C on a hot plate

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Synthesis of Aspirin Flashcards

-mix salicylic acid acetic anhydride and sulfuric acid to test tube-put test tube in hot water stir then let sit-pour test tube into new beaker and SLOWLY add water-stir add water (drop wise) until solution is cloudy-pour cold water in keep in ice bath -filtrate-Iron (III) chloride test

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