User:Samiye Yaman/Notebook/Lab 581/2012/08/31

From OpenWetWare

Jump to: navigation, search
Experimental Chemistry Main project page
Previous entry      Next entry


Objective

Description

Synthesizing PVOH

 -0.5 g of polvinyl alcohol (MW:22000) was placed in to beaker 1. 3 ml of water was added to the beaker.(Solution 1)
 -1 g of PVOH (MW:22000) was placed in to beaker 2. 6 ml of water was added to the beaker.(Solution 2)
 -0.5 g of PVOH (MW:100000) was placed in to beaker 3. 5 ml of water was added to the beaker.(Solution 3)
 -1g of PVOH (MW:100000) was placed. in to beaker 4. 7 ml of water was added to the beaker.(Solution 4)
 -All four beakers were placed on to the hot plate for 15 minutes until the solutions become clear. 
 Each solution was then poured in to separate teflon plates. Before letting it dry under the hood, acids drops are added to solutions. 
  • 1 drop of phosphoric acid in to Solution 1.
  • 2 drops of phosphoric acid in to Solution 2.
  • 1 drop of HCl in to Solution 3.
  • 2 drops of HCl in to Solution 2.

Note: The PVOH in beaker2 3 and 4 did not fully dissolved. Some stayed at the bottom of the beaker.

Additionally viscosity of dilutions of PVOH was also experimented.

Data

  • Add data and results here...

Notes

This area is for any observations or conclusions that you would like to note.


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.



Personal tools