Because most black inks are made up of more than one colour. When the ink gets wet, the colours separate.
The evidence that exists that marker ink is a mixture is that the ink can be separated into black and other color pigments. This can be done on filter paper by dotting the marker just above the edge and adding ethyl alcohol, which drags the pigments separately across the paper.
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When you mix water with ink, the bubbles will go down to the bottom of the bottle and spin around. It may change colours like yellow, green, red or blue. There is no answer for this. It will make a interesting chemical reaction. Scientists are looking for a solution.
Sand is not soluble in ink.
Biro ink and chlorophyll are soluble in methylated spirits
a quill pen has mor ink than a biro
yes a biro is man made the ink is man made and the pen itself is manmade
Ladislao Biro was working as a journalist when he found that the newspaper ink was smudge-free. So he started to work with his brother, Georg, to create the Biro.
3/4 of the plastic.
The ink in a ballpoint pen (biro) is typically composed of dye or pigment suspended in a solvent such as water or oil. The specific composition can vary depending on the manufacturer and type of pen.
One way to separate the colors blended in ink is through chromatography. This technique uses a solvent to move the ink across a medium, causing different components to separate based on their solubility. Another method is through distillation, where the ink is heated to separate the components based on their boiling points.
Black biro ink typically consists of a mixture of black, blue, and purple color pigments. These colors combine to create the dark and rich black color commonly seen in biro pens.
to make writing with ink easier
Because most black inks are made up of more than one colour. When the ink gets wet, the colours separate.
Solvents can be used in chromotography (used to separate the colours in a ink of some type): waters ethanol others........
Yes, Ladislas Biro did invent the ballpoint pen after observing how ink dried quickly on newspaper print. This led him to create a pen that used a ball to distribute ink, which prevented smudging and drying out.