User:Anh Do/Notebook/CHEM 481 Polymer/2017/02/22: Difference between revisions

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==Notes==
==Notes==
* Changes of pH were not visible
** We planned to decrease the amount of acid and increase the amount of water. Also, wait for a longer time for the acid exchange to happen

Latest revision as of 02:14, 27 September 2017

Project name Main project page
Previous entry      Next entry

Task List

  • Acid Exchange for 10% clay content beads
  • Wet sieving for 25% clay content beads
  • Vacuum filtrate 40% clay content beads

Acid Exchange

  • Vacuum Filtrate the beads
  • Soak the beads in 15mL of water
  • Measure the initial pH of the beads in water
  • Measure the pH every 10 minute interval for 10 intervals
    • pH of water = 6.593

Data for acid exchange

Table 1: Data for acid exchange of beads
Minute pH of 10% clay content pH of 25% clay content pH of 40% clay content
0 3.419 3.161 2.773
10 3.209 3.002 2.489
20 3.176 2.901 2.383
30 3.150 2.844 2.373
40 3.093 2.824 2.376
50 3.060 2.791 2.375
60 3.024 2.793 2.360
70 2.995 2.758 2.355
80 2.985 2.764 2.355
90 2.959 2.766 2.359
100 2.941 2.734 2.312



Notes

  • Changes of pH were not visible
    • We planned to decrease the amount of acid and increase the amount of water. Also, wait for a longer time for the acid exchange to happen
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