User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/09/12: Difference between revisions
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<u>Na-MT coated iron oxide preparation</u> | <u>Na-MT coated iron oxide preparation</u> | ||
# 0.75 g FeSO<sub>4</sub> (actual mass = 0.83 g), 1.56 g FeCl<sub>3</sub> (actual mass = 1.93 g), and 2 g Na-MT (actual mass = 2.18 g) were added to 10 mL distilled water. | |||
# 20 mL of 5M NaOH was added dropwise (slowly) | |||
# The mixture was filtered. | |||
# The product was dried in an oven at 100°C for 3 hours. | |||
* Mass of filter paper = 0.2098 g | |||
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<u>5 M NaOH Calculations</u> | |||
5 mol/L · 39.97 g/mol = 199.985 g/L · 0.05 L = 9.99 g NaOH to make a 50 mL stock solution | |||
==Notes== | |||
* The pure iron oxide was directly prepared by precipitating iron salts under dropping NaOH, whereas for the composite sample, the clay was added to the iron salts mixture prior to the reaction with NaOH | |||
* Rron oxide precipitated out immediately upon addition of NaOH. | |||
Revision as of 08:41, 7 November 2012
Experimental Chemistry | <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> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> |
ObjectiveTo make a film containing PVOH/glutaraldehyde, prepare 100% and 50% CEC clay with HdPh3P+, and to prepare Na-MT coated with iron oxide.
DescriptionPVOH/Glutaraldehyde Film
Data100% CEC Clay Calculations (0.92 meqv/g surfactant)·(2 g clay)·(1 eqv/1000 meqv)·(1 mol surfactant/1 eqv)·(567.62 g/mol surfactant) = 1.06 g surfactant
5 mol/L · 39.97 g/mol = 199.985 g/L · 0.05 L = 9.99 g NaOH to make a 50 mL stock solution
Notes
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