Aim of the projectAll the children are influenced by James Bond in some way or the another. Most of them like to watch detective movies or even read them all the time. They like the way in which the detectives solve the most confusing and tough cases. They like to play this game with their friends but due to several reasons are unable to find a base where they can play the game. They are unable to frame out a case to solve as it requires several specialized training. Hence, I decided to help the children in this regard where they can be detectives apart from the typical thief-police game. While playing this thief-police game, they can add this technique to catch the thief that shall make the game much more interesting. This activity is so simple that there is no need of any involvement of the adults and the children can use it freely without any of the usual dangers. This activity involves the practical application of the ink chromatography. You can use this technique to separate the black color into its constituents.
Materials required for the chromatography project
How can you be an ink detective?
Cause for the separation of the black color into a number of primary color This whole procedure is one of the parts of what we call as chromatography in which we separate the ink from one another. This techniques is more often used in the forensics to catch the guilty by identifying the blood stains etc. Blotting paper is made up of cellulose that is a very good absorber of water and ink. When the marked blotting paper is dipped into water, water rises in the blotting paper due its capillary action. This is called occlusion. All the colors have different absorbent rates and different solubility in water. Thus, the color with minimum absorbent capacity stays behind in the lowermost part of the blotting paper and the color with maximum absorbent power goes to the top. Thus, all the colors are separated from one another. However, this technique is used only for the secondary colors or the colors that are formed as a result of two or more colors. The primary color cannot be separated into any further colors.
Some other methods to separate two or more substances in a mixtureThere are various other methods by which you can separate the two or more mixtures. The basic ideology involved in the separation procedure is the different physical and chemical properties of the different elements and compounds. I have described some of the methods that can be performed by kids at home to separate the mixtures:
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