This preview shows page 1. Sign up to view the full content.
Unformatted text preview: ction has stirred for 20 minutes, return it to the ice-water bath in the
crystallizing dish. Add 10 mL of ice-cold deionized water to the reaction flask. Stir 1-2
minutes. Add a second 10-mL portion of ice-cold deionized water to the reaction flask
and stir 1-2 minutes longer. Carefully transfer the reaction to a 125-mL Erlenmeyer
flask. Place this flask in the ice bath in the crystallizing dish and re-establish vigorous
stirring without splashing. Use 10-mL portions of ice-cold deionized water to complete
the transfer, pausing 1-2 minutes between portions so that the reaction stays ice-cold even as the strong acids are diluted. After the transfer to the 125-mL flask is complete, add
enough ice-cold deionized water to reach a final volume of 75 mL. Allow the mixture to
stir on as you prepare the vacuum filtration apparatus.
Wet the filter paper in the Büchner funnel with deionized water and turn on the
vacuum. Filter the reaction mixture, using small portions of ice-cold deionized water to
complete the transfer. Rinse the so...
View Full Document