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Experiment 1: Slime Time
Inks can be polar or non-polar. Polar solvents pick up polar inks, while non-polar solvents pick up non-polar inks. In this experiment, you will use inks to identify slime and silly putty as polar or non-polar. You will also use paper chromatography to verify the inks are correctly identified as polar or non-polar.
Materials
(1) 250 mL Beaker 5 mL 4% Borax Solution, Na2B4O7·10H2O Dry Erase Marker (1) 10 mL Graduated Cylinder (1) 100 mL Graduated Cylinder Filter Paper (Disk) Filter Paper (Square) 0.5 g Guar Gum Highlighter Permanent Marker 1 Popsicle Stick
Silly Putty® Ruler Wooden Stir Stick Uni-ball® Roller Pen *Distilled or Tap Water *Newspaper *Notebook Paper *Scissors *You Must Provide
Procedure:
Part 1: Making Slime
Part 2: Slime and Putty Ink Tests
Hypothesize which inks the silly putty will pick up in the Part 2 of the Data section. Then, perform the ink tests with the Silly Putty® according to the procedure outlined in Steps 3 - 6. Record results in Table 2.
Part 3: Chromatography of Ink Samples
Table 1: Results of Ink Testing for Slime
Name of Ink
Picked up (dissolved)
Did not pick up
Trial 1
Trial 2
Trial 3
Newsprint
Highlighter
Uni-ball® Roller Pen
Permanent Marker
Dry Erase Marker
Table 2: Results of Ink Testing for Silly Putty®
Data
Part 1
Part 2
Part 3
Post-Lab Questions
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