User:Madeleine Y. Bee/Notebook/CHEM-581 Experimental Chemistry/2014/09/12

CHEM 581: Experimental Chemistry

Main project page Previous entry      Next entry

September 12, 2014 Procedures New Exfoliated Clay Film Synthesis Determine how much 4% exfoliated NaMT needed for 10% clay solution 0.11 g=(Mass of 4% NaMT soln needed)*0.04 Mass of 4% NaMT soln needed=2.75 g 2.7613 g 4% NaMT added Add ~1g PVA 1.004 g PVA added Add 7 mL H2O Stir the solution with constant heating at 75C Powder X-ray Diffraction Measurements Sample prep: Pat dry film soaked in 8 ppm malachite green solution 200 ppm done by Andrew's group 80 ppm done by Eleni's group 2 ppm, plain PVA film, & NaMT powder done by James' group Place film on pXRD disk Press tape over film to hold in place, using a razor to cut off excess Stock Solution Preparation Make 200mL 200ppm 40 mg MG in 200 mL volumetric flask 80 ppm made by Eleni's group 8 ppm made by Andrew's group 2 ppm made by James' group Soaking Films in Malachite Green Solutions Note: all PVA films<br.> 200 ppm Vial mass: 13.1537 g Vial + film mass: 13.2537 g Film mass: 0.100 g 2 ppm Vial mass: 13.0783 g Vial + film mass: 13.1843 g Film mass: 0.106 g 80 ppm Vial mass: 13.0332 g Vial + film mass: 13.1408 g Film mass: 0.1076 g 8 ppm Vial mass: 13.0325 g Vial + film mass: 13.1298 g Film mass: 0.0973 g Extra 10 mL 200 ppm and 10 mL 80 ppm with no PVA film put into glass vial to determine glass absorption of Malachite Green Other groups extra solutions: Eleni's group did 2 ppm & 8 ppm Andrew's group did 80 ppm & 8 ppm James' group did 2 ppm & 200 ppm