What pens work best for chromatography?
Black pens are recommended because they usually have many different dyes in their ink. Students should be encouraged to try markers of different colors or food coloring (the green food coloring works well).
What is the purpose of felt tip pens?
They come in a variety of colors, ink types, and tip sizes which makes them highly versatile. The felt tip helps the ink flow freely, which can produce smooth, even lines. The colors are highly saturated, which can create bold, bright art projects. Broad-tipped pens or markers are especially useful for shading.
Which Colours were present in the ink from the felt tip pen?
The solvent was water, and the inks used were from highlighter pens, using yellow, pink, blue and green pens. Recall that the color green can be made by mixing blue and yellow, and that the green ink has separated into its constituent parts.
What’s inside a felt tip?
The “felt” used for the tip is usually made of highly compressed synthetic fibers or porous ceramics. Toluol and xylol were used as solvents for the dye and are still used for the indelible ink in permanent markers.
How do you separate two dyes from a mixture of dye?
Paper chromatography is a method for separating dissolved substances from one another. It is often used when the dissolved substances are coloured, such as inks, food colourings and plant dyes.
Does chromatography work with pen?
In ink chromatography, you are separating the colored pigments that make up the color of the pen. Even though a pen will only write in one color, the ink is actually made from a mixture of different colored pigments.
What is black marker ink made of?
Permanent marker ink is composed of three elements: a colorant, a solvent and a resin.
How long does a felt tip pen last?
Answer: These pens have an average shelf life of two years. The minute you open it, the shelf life may decrease as you already need to consider room temperature, moisture, storage and other elements the product has been exposed to.
Why did the ink separate?
As the paper absorbs the solvent, the different components of the ink in the pen react differently to it. These different spots of ink will separate out, allowing you to see exactly what the components of the ink colors were.
How do you separate black ink?
Chromatography is a method for analyzing mixtures by separating them into the chemicals from which they are made. It can be used to separate mixtures like ink, blood, gasoline, and lipstick. In ink chromatography, you are separating the colored pigments that make up the color of the pen.