User:Allison K. Alix/Notebook/CHEM-581/2012/10/05

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Revision as of 13:45, 5 October 2012

Experimental Chemistry Main project page
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Objective

Conductivity of PVOH films

Description

Measure the conductivity of a PVOH film crosslinked with glutaraldehyde (see 9/14/12 for procedure) at different time intervals.

Data

cell constants: 0.4663 (orion versa star) 0.479 (orion 5 star)

The following solutions were used on either side of the film

  • ion solution of 100ppm Cl-, 100ppm Br-, 100ppm SO4 2- (as Na+ salts) (initially at 18.2mL, 29.0mL with probe inserted)
  • HPLC grade water (initially at 18.7mL, 31.0mL with probe inserted)


Time (min) Conductivity (μS), ion soln Conductivity (μS), water
0 730 10.25
5 730 10.49
10 730 10.50
15 730 10.57
30 730 10.65

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.



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