S����dɒ5k�lݺuϞ=8t�����mڴi��Ջ-���c�&L��X��3�ΤI����,XPYY�{��'N\�t����ƍmmm׮]kll. To prepare methyl salicylate from salicylic acid. This yield is significantly lower than part one primarily because the process of recrystallization is attempting to remove the unreacted salicylic acid impurity from the product, thus we obtained a lower amount of yield. Wintergreen oil contains a chemical similar to aspirin.

stream <> <>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Want us to write one just for you? Aspirin was formed by mixing salicylic acid with acetic anhydride in the following reaction: Utilizing 2.545 grams of salicylic acid and mixing it with 5mL of acetic anhydride, 6.051 grams of aspirin (acetylsalicylic acid) was obtained. Vogel’s Textbook of Practical Organic Chemistry by Brian S. Furniss, Antony J. Hannaford, Peter W. G. Smith & Austin R. Tatchell; Fifth Edition; Page No. The percent yield for recrystallized aspirin recovered is 13.75%. <> <>

<>>> <> Medications - Aspirin and aspirin containing drug compounds; Topical - Oil of Wintergreen (1 tsp 98% salicylate = 7000mg), Dencorub, some teething gels; Alternative medicine - Willow bark; Assessment Features on history . Synthesis of Methyl Salicylate from Aspirin Esters are a class of organic compounds. <> of oil of wintergreen and 2 oz of the witch hazel. Your blood's viscosity, and its effect on health, varies as a result of what you ingest. 17 0 obj is 115 °C/20 mmHg and a 2 °C fraction should be collected. %���� Apparatus:     Round bottomed flask – 500 ml. %PDF-1.5 The average concentration observed for the standardized NaOH is 0.096755 M and the average deviation is 0.004626, therefore further demonstrating that the 3 samples differed by less than the required one percent.

Experiment 19: Synthesis of Aspirin and Oil of Wintergreen Discussion.

18 0 obj 1 0 obj Use: © 2005-2020 Healthline Media a Red Ventures Company. According to the Food and Drug Administration (FDA), people who take aspirin regularly should limit their alcohol consumption to avoid gastrointestinal bleeding. The pure aspirin’s melting point is 125 degrees Celsius and has a 7.4 % error when it is compared to the known melting point of 135 degrees Celsius. 13 0 obj 14 0 obj It can result in dangerous blood loss and anemia over time. Treatment is identical to the other salicylates. x���n7�݀��g���l��E ��9��d-���at�G��D��e�YE��pbc�X��,�}�Z�_�=\�oN�/�8���asryvZ�;���h����j��ںiU54S���p�.��7/ޭ��o���/��{��߾�羺yx����詞zvx'���+5փR��w+᝙��SM-��*�k�*G}bl���:�({���7Uðo+!�F�@����6��ީ�F��ί���ϵ��[��l-���z\]���ú��q�]�q��_Tk1���(. Put a few small chips of porous porcelain, set a reflux condenser to the flask and boil the mixture gently for 5 h. Distil off the excess amount of alcohol on a water bath and allow to cool. x�m�OK�@��|�9n stream This is done through utilization of the processes of esterification between an alcohol and an acid.

19 0 obj endobj Beer has been used throughout history for health, even now. endobj <>>> 25 0 obj [M����k���!M‚+��Jȇa�Ek��^�Ję�kE/k��?k�=������e�x#���̶F$>̛�ڱV��=��"V_���[@ ��$�7#�M In part 7, we analyzed the purity of the aspirin by doing a back titration of the aspirin This is used to determine the amount of acetylsalicylic acid in the sample. You can get 100% plagiarism FREE essay in 30sec, Sorry, we cannot unicalize this essay. 23 0 obj

Filter the methyl salicylate solution through a small fluted filter paper directly into a round bottomed flask fitted with a still-head carrying a 360 °C thermometer and an air condenser. Subscribe our Telegram channel for regular updates. Even small doses of oral wintergreen oil may cause toxicity. We can custom edit this essay into an original, 100% plagiarism free essay. endobj

[ 12 0 R] endobj Aspirin is available over the counter. 4 0 obj

this essay is not unique. Wintergreen oil (or oil of wintergreen) has a lot in common with the active ingredient in aspirin. Principle: All rights reserved.

In one very small, dated study, five people who had taken 1000 milligrams of aspirin one hour before drinking had a much higher blood alcohol concentration than people who drank the same amount but didn’t take aspirin. 5 0 obj When an acid (containing the –COOH group) reacts with an alcohol (a compound containing an –OH group) formed an ester. <> 12 0 obj Using large amounts of wintergreen oil on your skin and taking aspirin at the same time might increase the risk of side effects.


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