User:Keyun Wang/Notebook/Experimental Biological Chemistry I/2013/01/29

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Purpose

  • Start making sample Silver film with proposed protocol

Procedure

  • 3.45g of AgNO3 was weighted out and placed in a 50mL Erylenmeyer flask.
  • 0.8g of Laponite clay was weighted out and placed in same Erlenmeyer flask as above.
  • The 0.8g of Laponite clay was calculated in the following ways:
  Cationic exchange capacity of Laponite: 0.55 milliequivilient/gram
  Weight % of silver to be exchanged in Clay: 95%
  Calculation is shown as follows:
  ___________
  • 10mL of 50/50 water/ethanol solution was made by combining 5mL of water and 5mL of ethanol in a 10mL graduated cylinder.
  • 10mL of water/ethanol solution was poured into Erylenmeyer flask along with a stir bar.
  • The Erylenmeyer flask containing the solution is placed on stir plate for 24 hours.



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