Continuation of Ionic Liquid Exchange Films
- Dr. Hartings completed the washes for the Ionic Exchange Films from last Wednesday, Sept. 19, 2014.
- The film was spread on a watch glass to dry.
- As the film dried, a spackle-like texture was observed.
- The solid was scraped off from the watch glass and ground into a mortar and pestle.
- The ground solid weighed in the amount of 1.04572 g; this was transferred into a scintillating vial.
- The exchanged clay material was stored by Dr. Hartings in an oven to evaporate excess water in the solid.
Film Synthesis
- PVA Film
- PVA-Clay Film
- 1.0117g PVA + 0.1105g Clay
Analysis of PVA-malachite green data
- I prepared an File:PVA MJJ.xlsx containing the calculations for the grams of malachite green absorbed per gram of film.
Film Suspension in Arsenic and Mercury
- Data below were taken from James Schwabacher's entry:
- 0.0908g HgCl2
- (0.0908g HgCl2)*(1mol HgCl2/271.5g HgCl2)*(1mol HgCl2/1mol Hg)*(200.59g Hg/1mol Hg) = 0.0671g Hg
- put in 250mL volumetric
- 268ppm Hg
- Arsenite solutions for vials from 0.0499 mol/L (3738.588 ppm As) stock. These were made by me and Eleni for the entire class.
- 4 mL of stock in 100 mL volumetric flask -> 150 ppm As
- 2.67 mL of stock in 100 mL volumetric flask -> 100 ppm As
- 1.337 mL of stock in 100 mL volumteric flask -> 50 ppm As
- Mercury solutions for vials from 268 ppm Hg stock. These were prepared by me and Madeleine, to split between our groups.
- 27.985 mL of stock in 50 mL volumetric flask -> 150 ppm
- 18.657 mL of stock in 50 mL volumetric flask -> 100 ppm
- 9.328 mL of stock in 50 mL volumteric flask -> 50 ppm
As and Hg Absorption Experiment Set Up
'
|
As/Hg
|
Conc. (ppm)
|
Vial (g)
|
Vial+Film (g)
|
Film (g)
|
|
|
|
|
|
|
PVA Only |
As |
50 |
13.11987 |
13.24774 |
0.12787
|
|
As |
100 |
13.18897 |
13.27703 |
0.08806
|
|
As |
150 |
13.12007 |
13.17871 |
0.05864
|
|
Hg |
50 |
13.16106 |
13.29947 |
0.13841
|
|
Hg |
100 |
13.17089 |
13.27604 |
0.10515
|
|
Hg |
150 |
13.12344 |
13.28383 |
0.16039
|
|
|
|
|
|
|
PVA-Clay |
As |
50 |
13.08592 |
13.27636 |
0.19044
|
|
As |
100 |
13.07435 |
13.16925 |
0.0949
|
|
As |
150 |
13.09743 |
13.23957 |
0.14214
|
|
Hg |
50 |
13.13946 |
13.23529 |
0.09583
|
|
Hg |
100 |
13.11072 |
13.22965 |
0.11893
|
|
Hg |
150 |
13.03134 |
13.14071 |
0.10937
|
|
|