endstream endobj 120 0 obj<>/Metadata 8 0 R/PieceInfo<>>>/Pages 7 0 R/PageLayout/OneColumn/OCProperties<>/StructTreeRoot 10 0 R/Type/Catalog/Lang(EN-US)/LastModified(D:20060203153106)/PageLabels 5 0 R>> endobj 121 0 obj<>/PageElement<>>>/Name(HeaderFooter)/Type/OCG>> endobj 122 0 obj<>/ProcSet[/PDF/Text]/Properties<>/ExtGState<>>>/Type/Page>> endobj 123 0 obj<> endobj 124 0 obj<> endobj 125 0 obj<> endobj 126 0 obj<> endobj 127 0 obj<> endobj 128 0 obj<> endobj 129 0 obj<> endobj 130 0 obj<>stream spectrum that was run with our final product also displays that the oxidation reaction of but there also was broad alcohol peak observed in every group. <<63184515D258D5419AF4DCC806024672>]>> x mL (20 g/100 mL) = 14.14 g; solve for x and find that x = 71 mL, Q 4) IR band represents Alkene stretch at 3100-3000 cm-1 and also at 1000 – 650 cm-. Reading and Working Ahead You should determine the order of reactivity you anticipate for the alcohols assigned. Table 2: IR peaks observed for the cyclohexanone in IR spectrum, 3340.31 Alcohol (broad) (Experimental error). 0000003711 00000 n Quench excess oxidant by adding 10-20 drops of saturated sodium bisulfite solution. cleavage of a carbon-carbon bond.

0.19 mole of NaOCl x 74.44 g/mole = 14.14 g. bleach. 3.Divide the solution into 3 equal portions in 3 test tubes. water, cyclohexanol. trailer 0000001098 00000 n There were many possible errors that could have altered the end endstream endobj 145 0 obj<>/Size 119/Type/XRef>>stream }� ؍v�4jG�la� The purpose of this lab was to successfully oxidize Cyclohexanol to cyclohexanone by Beside this IR displays for the cyclohaxanone the C-H stretches The potassium permanganate solution will become yellowish. that we used in our experiment. our experiment. the bottom and the organic layer was very small. 0000003443 00000 n stoppering it, and applying vacuum until bubbling is no longer apparent. Reference. endstream endobj 131 0 obj<>stream Chromic acid H 2 CrO 4 118.01 197 250 1.201 2.551 corrosive Tert-butyl 0000006064 00000 n 0000000856 00000 n H���]O�0����r�BiK;J�,q��,��;gBu� ���m;�]�) �9�}�"��L�*9��4�`W�*KU�P�;a�)����\:F4 � �mz�v*K�� 4�k��U�~A�o�jX�@�!��8OK��a_D[�%*���8M�ټ�t��98�=L&�j~� B`:�-��L:���W�F�-@u�&���Zh���ff�u c���쮆|�EYE���P(,��ȧL͗�,k�6�!�֎-����V�q�X����(B� UۏX�ϡ����I޶�=�6[T�H}!�?F�� 0ҏ��m�?��'�N9�6���M> xref And alkane Which is cyclohaxanol Minilab 25 – Oxidation of Alcohols by Potassium Permanganate Goal To predict and test the relative order of reactivity of alcohols toward permanganate oxidation. 0000008218 00000 n color. 2.In a small beaker, mix 3 mL of ethanol and 12 mL of distilled water. Problem Statement: The purpose of this lab is to standardize a solution of potassium permanganate by redox titration with a standard solution of iron (II) ions. 0000063773 00000 n 0000004016 00000 n

View Lab Report - ochem 2 lab report 9.docx from CHEM 2025 at Texas A&M International University. If spilled on the skin rinse immediately with cold water and inform your instructor. H���MK�@���s�P2�ٝ���C? For a limited time, find answers and explanations to over 1.2 million textbook exercises for FREE! Oxidation of Alcohols by Potassium Permanganate, Oxidation of Alcohols by Potassium Permanganate.docx, ab_Report_9_Oxidation_of_Alcohols_by_Potassium_Permanganate.docx, Texas A&M International University • CHEM 2025, Lab_Report_10_Preperation_of_Acetate_Esters.docx, Copyright © 2020. Q.5) The Top spectrum showing the broad alcohol spectrum at 3300 cm-1.

Potassium permanganate is a weak oxidizer when compared with chlorine, chlorine dioxide and ozone. )�#P�^���@��������X7�,��\$����+݁�KY��V{��Ȕ6� ��ڕT&n6�O��m���n�z��o��F=M Combustion of alcohols can be classified as type of oxidation reduction (redox) reaction. When the addition of bleach was completed, the solution turned pale yellow in

�7-�ȴP�q�iT�6��2����Ӻ�*���V�R���f��XoN���`�_M�\݃�%uL^e=2��y�` \ ochem 2 lab report 9.docx - Oxidation of Alcohols by Potassium Permanganate Emilio Fernandez David Gutierrez Rogelio Gomez-Vasquez Trey Alarcon CHEM, 2 out of 2 people found this document helpful, David Gutierrez, Rogelio Gomez-Vasquez, Trey Alarcon, Objective: The objective of this experiment is to identify what alcohols are oxidized by, Background: Aldehydes and ketones are products of primary and secondary alcohols, that are oxidized by oxidizing agents like potassium permanganate.

removed the methylene chloride from the solution by placing it in a pre weighed side arm flask The weighted result (actual) was then compared to the theoretical in which the percent 3340.31 that shows alcohol in the product. shows alcohol in the product.

%PDF-1.4 %���� 146 0 obj<>stream ��S� molecule in this experiment. Post-Lab 4 Oxidation of Alcohols: Preparation of Cyclohexanone. 0000004765 00000 n funnel, Extracted with 5 mL of methylene chloride and saved the organic layer then extracted the Added the bleach drop wise to 0000001731 00000 n Table 2: It was observed in the IR spectrum, there was a broad and strong peak at 3340.31. NaCl until the solution is saturated. endstream endobj 135 0 obj<>stream Objective 0000001572 00000 n 119 28 weighted for percent yield and the IR spectrum to verify the presence and purity of the target

Decant to remove the drying agent and then   Terms. ��x_-W�"����6����yb߃{܏� ��&����۝U�ym͐3��ɝ�"o�����STPW?�ZV�h�����.���C��������8��R�+�p����0Q�7�ܬ`"��n�p�NN� �M쉺:�W8e���|M����V�\%�w�Ñ��5������gki�hk�)XkQJ{/y]����Ee�� The addition of bleach should take 10 -15 min. The reason could be contamination in chemicals that we used in

endstream endobj 134 0 obj<>stream manual error performed throughout the experiment that could have altered the end results. Oxidation of Alcohols by Potassium Permanganate Emilio Fernandez David Gutierrez, Rogelio Placed 15 mL of ental risk, Hypochlorous HOCl 52.46 100 This preview shows page 1 - 4 out of 5 pages. The purpose of this experiment was to prepare cyclohexanone from cyclohexanol by an the desired product. 0000005440 00000 n the product and compared to the actual infrared spectroscopy of cyclohexanone to confirm it was aqueous layer one more time with an additional 5 mL of methylene chloride.ombine the organic but possibly had impurities. 0000003972 00000 n H�|�]o�0���+�e��c;�k�*��&����4�^�Ā�#Ǵ��~��g��?

Oxidation of Alcohols: Preparation of Cyclohexanone.

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The potassium permanganate solution is an inorganic chemical compound with the formula KMn04. 29 seconds. H��TKK�@��W�1A2�ݝ\$(� J�fE��A�*��NҖl�n��l�%�f��n 0000002591 00000 n The IR That 0000008765 00000 n The percent yield of the product 78.5 % proving the fact that the end product was almost pure

This is how we are able to identify between primary. 0000007629 00000 n C=O stretch was at 17064cm-1 that shows the final product reach   Privacy �(�� �K��� \$ �:@�Ōr��g1&1Sd*a*gHb��8�qS results in this experiment, for example, the extraction of the organic layer (top part) from the

The reason could be contamination in any chemicals bath to cool. Sodium dichromate Na 2 CrO 7 261.97 365.7 400 2.52 1.66 v. toxic the cyclohexanol mixture.

water (bottom) is not precise. Then, a solution of oxalic acid is then titrated with the permanganate solution to determine the exact concentration of oxalic acid. An experimental infrared spectroscopy was obtained of completion and the experiment was success.

The IR spectrum displays that the final product was cyclohaxanone x�bbbf`b``Ń3�%� � 4�� endstream endobj 132 0 obj<> endobj 133 0 obj<>stream Potassium permanganate and manganese dioxide. Five test tubes were used (#1 used as a control, #2 with methanol, #3 with ethanol, #4 with 2-propanol, and #5 with 2-methyl-2-propanol). 0000006973 00000 n Tested the reaction for remaining hypochlorous acid. Post-Lab 4 cyclohaxanol to cyclohexanone.

P�ڱ=pM?畸>=�i�����U��;�m�Qo\�`oΪ��G���x�� ���u "��J�F׺�]���8C��#I.F�v����(k��!x)녧�K�7�/��J�e������۷�[m�Y�MUB)LW��'xnɑu� ��)ʲd�2\r[+�k#gr�R�+�i�'��E��9ww"��F��W������{Њ�l+Xhw� Oxidation of Alcohols: Preparation of Cyclohexanone. the extra amount of drying reagent was added to the sample, there wasn’t much solid forming at Generally speaking, as alkyl groups are added to an alcohol, that alcohol becomes more electron rich. There were several source of 0000005582 00000 n �h���k�t�r5������`2)V��� The results could be altered due to some impurities such as

bleach in separatory funnel that should place above the E. flask. "��=�kG}m����D}c�l)J�FL��)b۵�h���F���@�ô����YR �S��"�,����DC��C~�a�v{��Λ`���1�c\ �Aw? Name: Course: Organic Chemistry 232 Lab. 0000063590 00000 n

Raw water purification from taste and odour by means of potassium permanganate (KMnO 4) has been known from the beginning of the nineteenth century. Introducing Textbook Solutions. Then added 2 drops of thymol blue corrosive. D. Oxidation - Potassium Permanganate 1.Be especially careful with the Potassium Permanganate solution as it is it will stain skin and clothes. @�����z(�UO�}7)6�6 �!d������L�K!QJ�!�AB�����TH�&}z/����X�b�YB1}��`6�n�7+P���*�_�b��իZ^Q#�NR]2�th0��)q�lŮ���*++�e�o[�}��^�/hU�\$��M+�&��� ����zĞ�G �-c�z*��x��r����z�F�t��sh�y�ʊ�X|�IÜ��x��w�\$���F�sD�*���`�Pg���pR�N�C&w��Pg݀+����X4S��Z�=6���'����4ѨP�����m>WMڢj���U=f������\$EMkO����`F&S,l �-���)y���G� ZF� yield of the final product showed to be relatively low for this experiment (78.5 %).

Stired the reaction mixture for 15 minutes. Y�d�x��b:K{͂.=*�]�. fL}�J��M����q�&����˺�g����O�e�Ǒ��O��r��Q�����m�lLޝ���F�][s}0Bٱr��H��}��]ͪs�}3Y�qh"_�~��ɭI^�����������[��BY��>n�YU1��Zt�^����K��p)�k��P��7n���]:�f���3�B�M� i.� EU�B��ԫ���sf�? Another source of error was the addition of drying reagent; after It was observed in the IR spectrum, there was a broad and strong peak at The experiment was successful and the target molecule did go to completion. ���B�g. indicator, and add 6N NaOH with pipet until the solution turns a light blue color then added solid Course Hero is not sponsored or endorsed by any college or university. the Chapman-Stevens oxidation process. flask became hot to the touch during the bleach addition, slowed the rate of addition and used ice Oxidation of Alcohols by Potassium Permanganate Abstract: The purpose of this experiment was to compare the reactivities of different alcohols treated with neutral potassium permanganate followed by potassium permanganate acicidified with HCl.