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What’s Ink Made of?. Compounds and Mixtures?. What is Ink made of?? How would you find out?. Chromatography. Get a beaker, paper strip, pen/marker About 2cm from one end of the paper, draw a line perpendicular to the paper Put about 1cm of water in the beaker
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Compounds and Mixtures? • What is Ink made of?? • How would you find out?
Chromatography • Get a beaker, paper strip, pen/marker • About 2cm from one end of the paper, draw a line perpendicular to the paper • Put about 1cm of water in the beaker • Suspend the paper in the beaker so the bottom of the paper is in the water, BUT NOT the ink stripe
Watch • What is happening? Describe. • When it looks finished – take it out. Describe. • Try another color
What if it didn’t do anything…. • Aha, permanent ink pen… we can try another solvent. • Try it.