The colors in the paint used on the paintings or on the walls were not always as easy to produce and easily accessible everywhere as they are now. So much so that some colors, such as purple or blue, are usually obtained from precious pigments that are hard to find. underused and ‘valuable’ preference in detail.

One of the most prominent of these colors, the color of kings and religious people, was blue. This changed thanks to a pigment now known as ‘Prussian Blue’ and blue is no longer a ‘royal color’. Here is the ‘Prussian Blue’ pigment, the source of this revolutionary change in art, now. in the recycling of e-waste has been the subject of significant development.

First, let’s take a look at what Prussian blue pigment is.

To obtain the blue color, ultramarine pigment obtained by grinding lapis lazuli, a metamorphic rock, also known as lapis lazuli, was used for many years. But this pigment it was a valuable pigment found in certain regions† Of course, as we mentioned above, blue was a color that was rarely used.

But when the calendars indicate the year 1704 an accidental discovery, He completely changed the situation by bringing blue into the art world. Pigment producer Jacob Diesbach realized he was running out of potassium while working on a red color and asked his friend, German physician Johann Conrad Dippel, for whom he used his lab, for potassium.

Dippel gave Diesbach potassium, but the potassium was contaminated with animal fat from which animal blood was distilled. Diesbach, who unknowingly uses potassium in his mixture, it took on a pale tone instead of its vibrant red color and when he tried to concentrate, he saw the color begin to change. Color is finally to blue color returned. This is how the pigment ‘Prussian blue’ was born, the first synthetic blue color in history.

Gold can be extracted from e-waste like phones with Prussian blue pigment

E-waste is a huge problem given the ever-increasing use of electronic devices. Most The ‘developed’ country sends this waste to African countries. turning the continent into a gigantic and toxic e-waste dump.

Although the worst example of this situation is the African countries, it is possible to come across similar scenes all over the world and this problem is poisoning us all. Scientists too E-waste recycling with affordable cost and high performance they find their way.

One of the studies conducted in this direction is a previously published study. In addition, the data obtained is quite remarkable.

According to the study, using Prussian blue pigment can be easily and conveniently removed from e-waste. fairly efficient compared to current methods. It will be possible to mine gold and similar precious metals.

The study authors describe the significance of the situation as ”The amount of gold in a ton of mobile phones is 300-400 grams, that is: 10-80 times more than a ton of natural ore† The same goes for other elements. Therefore, recovering these valuable elements from e-waste is much more effective and efficient than collecting from natural ore.‘, while also summarizing the Prussian blue pigment in nuclear waste disposal They also indicated that it could be used “as a more cost-effective method.”