User:Elizabeth Ghias/Notebook/Experimental Chemistry/2013/02/01

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(Autocreate 2013/02/01 Entry for User:Elizabeth_Ghias/Notebook/Experimental_Chemistry)
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==Objective==
==Objective==
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To calculate the number of OH groups in polyvinyl alcohol (MW = 146000 - 186000) and to prepare PVOH films
==Description==
==Description==
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==Data==
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<u>OH Group Calculations</u>
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* Add data and results here...
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==Notes==
 
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This area is for any observations or conclusions that you would like to note.
 
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Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.
 
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[[Category:Course]]
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<u>Isopropyl Solution Preparation<u>
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[[Category:Miscellaneous]]
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<u>Films Prepared</u>
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All films were heated on a hot plate until the PVOH dissolved in the water. For films 5,6, and 7, additional water was added to the gel to assist in the dissolution.  Once dissolved, the film was removed from heat and any additional reagents were added while the gel was stirred.  When isopropyl and glutaraldehyde were added, the isopropyl would be added first and then would stir for roughly 2 to 3 minutes.  Glutaraldehyde was added last.  Once prepared, the films were poured into a large plastic dish and were allowed to evaporate over the weekend. 
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# 0.5043 g PVOH + 6 mL water (this was the only small film prepared)
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# 0.5027 g PVOH + 6 mL water + 1 mL glutaraldehyde
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# 0.5029 g PVOH + 6 mL water + 87 μL isopropyl stock solution + 1 mL glutaraldehyde
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# 0.5029 g PVOH + 6 mL water + 87 μL 10% isopropyl solution (see notes) + 1 mL glutaraldehyde
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# 0.5060 g PVOH + 6 mL water + 87 μL 1% isopropyl solution + 1 mL glutaraldehyde
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# 0.5034 g PVOH + 6 mL water + 87 μL 0.1% isopropyl solution + 1 mL glutaraldehyde
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# 0.5050 g PVOH + 6 mL water
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==Data==
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* No data was collected today
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==Notes==
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* The 10% isopropyl solution refers to a solution that is 10% of the isopropyl stock solution.  Similarily, a 1% or 0.1% solution refers to 1% and 0.1% of the stock solution, respectively.

Revision as of 15:48, 1 February 2013

Experimental Chemistry Main project page
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Objective

To calculate the number of OH groups in polyvinyl alcohol (MW = 146000 - 186000) and to prepare PVOH films

Description

OH Group Calculations



Isopropyl Solution Preparation<u>



<u>Films Prepared

All films were heated on a hot plate until the PVOH dissolved in the water. For films 5,6, and 7, additional water was added to the gel to assist in the dissolution. Once dissolved, the film was removed from heat and any additional reagents were added while the gel was stirred. When isopropyl and glutaraldehyde were added, the isopropyl would be added first and then would stir for roughly 2 to 3 minutes. Glutaraldehyde was added last. Once prepared, the films were poured into a large plastic dish and were allowed to evaporate over the weekend.

  1. 0.5043 g PVOH + 6 mL water (this was the only small film prepared)
  2. 0.5027 g PVOH + 6 mL water + 1 mL glutaraldehyde
  3. 0.5029 g PVOH + 6 mL water + 87 μL isopropyl stock solution + 1 mL glutaraldehyde
  4. 0.5029 g PVOH + 6 mL water + 87 μL 10% isopropyl solution (see notes) + 1 mL glutaraldehyde
  5. 0.5060 g PVOH + 6 mL water + 87 μL 1% isopropyl solution + 1 mL glutaraldehyde
  6. 0.5034 g PVOH + 6 mL water + 87 μL 0.1% isopropyl solution + 1 mL glutaraldehyde
  7. 0.5050 g PVOH + 6 mL water


Data

  • No data was collected today

Notes

  • The 10% isopropyl solution refers to a solution that is 10% of the isopropyl stock solution. Similarily, a 1% or 0.1% solution refers to 1% and 0.1% of the stock solution, respectively.



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