Wednesday, October 20, 2010

October 19 2010 - Lab 3B


Today we did a cool Lab where we did "Separation of a Micture by Paper Chromatography".

-Where we use 3 color dyes (unknown, green and either red, blue, and yellow)

-We used chromatography paper as the object to place the dyes onto and see the filtration of colors happen

-Our color dyes as the solute in this experiment

-The solvent used was water

-As time passed we watched our different dyes, yellow, green and unknown creep up the chromatography paper

-As the water is absorbed and reaches higher and higer, we can see the colors filter out into the primary colors and the dye stretch out and up

-We later understood that unknown dye is a mixture of all the 3 primary colors

-The yellow just filtered out to more yellow

-The unknown dye later filtered out to red, yellow, and blue

-While the green dye filtered out to yellow and blue dye


Here is another video, very similar to the experiment we did :

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