Tuesday, September 6, 2011

Ink Separtaion Technique



Today in Chemistry class we performed an experiment where we used ink chromatography to watch the paper to separate the pigment found in ink samples. We first drew a design on the filter paper using marker. Ours were a tribal flower , a heart which was colored in with permanent maker,and a series of crosses. We than poked a hole in the middle and put a rolled piece of paper towel through it. Than we placed the tip of the paper towel in the water and watched as the water traveled up the paper towel and spread a cross the filter paper.As a result we learned that the different colors used all had different molecule sizes. Blue for example had small molecules so it followed along with the water, and could usually be seen along the edges along with black, and red. The color yellow had thicker molecules so it could be found closer to the middle. As the water progressed the colors mixed together and even made the colors pink, orange, white , and a purplish white cold.


PIctures from Google.com

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