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

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(Objective)
Current revision (15:44, 5 October 2012) (view source)
(Data)
 
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==Description==
==Description==
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Measure the conductivity of a PVOH film crosslinked with glutaraldehyde (see 9/14/12 for procedure) at different time intervals.
==Data==
==Data==
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* Add data and results here...
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cell constants: 0.4663 (orion versa star) 0.479 (orion 5 star)
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The following solutions were used on either side of the film
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* ion solution of 100ppm Cl<sup>-</sup>, 100ppm Br<sup>-</sup>, 100ppm SO<sub>4</sub> <sup>2-</sup> (as Na<sup>+</sup> salts) (initially at 18.2mL, 29.0mL with probe inserted)
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* HPLC grade water (initially at 18.7mL, 31.0mL with probe inserted)
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{| class="wikitable"
 +
|-
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! Time (min) !! Conductivity (μS), ion soln  !! Conductivity (μS), water
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|-
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| 0 || 730 || 10.25
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|-
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| 5 || 730 || 10.49
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|-
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| 10 || 730 || 10.50
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|-
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| 15 || 730 || 10.57
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|-
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| 30 || 730 || 10.65
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|-
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| 60 || 731 || 10.72
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|-
 +
| 90 || 731 || 10.84
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|-
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| 120 || 732 || 10.90
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|-
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| 150 || 732 || 10.98
 +
|}
==Notes==
==Notes==

Current revision

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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
60 731 10.72
90 731 10.84
120 732 10.90
150 732 10.98

Notes

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