random questions
is expired donated blood is dangrous to touch or to experiment with anything? Chemically speaking, blood is actually a much better source of paint than it is of weapons! It sounds wild, but it is 100% true. When you extract the iron from blood and react it with the right chemicals, you get a beautiful, vivid blue pigment called Prussian Blue . There is actually a pretty crazy historical coincidence tied to this: The Secret History of Blood and Blue Paint Back in the early 1700s, a chemist named Johann Jacob Diesbach was trying to create a bright red paint in his laboratory. To save money on ingredients, he used a batch of potash (a chemical) that had been accidentally contaminated with animal blood from a butcher. Instead of getting red paint, the iron in the blood reacted with the chemicals and turned a shocking, brilliant deep blue . He had accidentally invented the world's first modern synthetic pigment—Prussian Blue. Artists fell in love with it. In fact, if you have ever se...