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

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)

Notes

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