Tuesday, July 21, 2015

Chromatography Lab

July 22, 2015












1. It is important because if the filter paper gets in direct contact with the water, then the ink will not have time to partition at its own pace. Also the final result would not be the best looking chromatogram.


2. Some of the variables that may have affected the pattern of colors may have been the marker, since each marker had a unique amount of color, especially MrSketch markers. These markers provided a variety of colors within them. Another factor may have been the amount of water and angle. The water helps reveal how much of the ink reveals while the angle dictates the direction and speed the absorbtion may have taken due to its position in the cup.


3. Black ink is made up of many different colors. For example, red, yellow, or blue can make black, but there are many other colors that can combine to form the color black. As a result, many marker  and pen companies make their black writing tools with their own combinations of black.


4. Blue is one color present in more than one type of ink. I would assume so, but I believe there would be different compounds that produce similar tones and color shades.


5. If the markers were permanent or “water-proof”, then the pens would not absorb the water and let the pigments show their colors. Solutions in which oil or other water resistant materials are soluble could be used to separate the permanent ink.



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