User:Alicia Rasines Mazo/Notebook/CHEM-581 Experimental Chemistry I/2014/10/17: Difference between revisions

From OpenWetWare
Jump to navigationJump to search
No edit summary
No edit summary
Line 24: Line 24:
Placed film in sodium sulfate, 1% HCl and sodium bicarbonate.
Placed film in sodium sulfate, 1% HCl and sodium bicarbonate.
===Measuring density of films===
===Measuring density of films===
*Cut out 3 pieces each from PVA and PVA-Clay polymer films, allowed to dry and weighed. Measured volume.  
*Cut out 3 pieces each from PVA and PVA-Clay polymer films, allowed to dry and weighed. Measured volume. Density was found to be:
{| {{table}}
{| {{table}}
| align="center" style="background:#f0f0f0;"|'''Film'''
| align="center" style="background:#f0f0f0;"|'''Film'''
Line 30: Line 30:
| align="center" style="background:#f0f0f0;"|'''Dried Mass (g)'''
| align="center" style="background:#f0f0f0;"|'''Dried Mass (g)'''
| align="center" style="background:#f0f0f0;"|'''Displaced volume (mL)'''
| align="center" style="background:#f0f0f0;"|'''Displaced volume (mL)'''
| align="center" style="background:#f0f0f0;"|'''Density (g/L)'''
|-
|-
| PVA film|| 0.0278 || 0.0102 || 0.1
| PVA film|| 0.0278 || 0.0102 || 0.1 || 0.102
|-
|-
|  || 0.0255 || 0.0129 || 0.07
|  || 0.0255 || 0.0129 || 0.07 || 0.184
|-
|-
|  || 0.0265 || 0.0089 || 0.114
|  || 0.0265 || 0.0089 || 0.114 || 0.078
|-
|-
| PVA-Clay film|| 0.0122 || 0.0067 || 0.480
| PVA-Clay film|| 0.0122 || 0.0067 || 0.480 || 0.014
|-
|-
|  || 0.0177 ||0.0102 || 0.44
|  || 0.0177 ||0.0102 || 0.44 || 0.023
|-
|-
|  || 0.0307 || 0.0145 || 0.23
|  || 0.0307 || 0.0145 || 0.23 || 0.063
|}
|}
*Density was found to be:
*Density was found to be:

Revision as of 06:22, 22 October 2014

Project name <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>

Tasks for October 17

  • To begin synthesis of PVa and 10% wt PVA-Clay films
  • To complete synthesis of films from Oct. 15
  • To complete synthesis of cation exchange modified clays
  • To determine density of films
  • To complete data analysis

New film synthesis

  • 1.0046 g of 22,000 MW PVA and 0.1113 g of NaMT were hydrated with 7 mL of distilled water
  • 1.0082 g of 22,000 MW PVA were hydrated with 7 mL distilled water
  • Heated at approx. 80ºC under gentle stirring until all crystals were dissolved
  • Cooled to room temperature
  • Added 0.5 mL 0.8% wt glutaraldehyde
  • Stirred for 3 min to ensure homogeneity
  • Poured into teflon dish

Completion of film synthesis

Placed film in sodium sulfate, 1% HCl and sodium bicarbonate.

Measuring density of films

  • Cut out 3 pieces each from PVA and PVA-Clay polymer films, allowed to dry and weighed. Measured volume. Density was found to be:
Film Initial Mass (g) Dried Mass (g) Displaced volume (mL) Density (g/L)
PVA film 0.0278 0.0102 0.1 0.102
0.0255 0.0129 0.07 0.184
0.0265 0.0089 0.114 0.078
PVA-Clay film 0.0122 0.0067 0.480 0.014
0.0177 0.0102 0.44 0.023
0.0307 0.0145 0.23 0.063
  • Density was found to be:

Completion of ionic modified clays

  • Completed synthesis from Oct. 3



Retrieved from "https://openwetware.org/mediawiki/index.php?title=User:Alicia_Rasines_Mazo/Notebook/CHEM-581_Experimental_Chemistry_I/2014/10/17&oldid=831284"