History of "color" that caused people to die

ByZhouxuan 12345678

"Priceless than gold" was said, pigment that the family of painter Felmail had fallen into the mire of debt "Ultramarine"In the history, such as" color "has had a great influence on people and the world. Among them, TED-Ed explains the animation easily in white, green and orange with TED-Ed as a history that has caused people to die.

History's deadliest colors - J. V. Maranto - YouTube


1898, by Mary & Pierre Curie coupleradiumWas discovered.


At that time, radium was said to repair the body, so Radium was used for toothpaste, medicine, water, food and so on.


Also, as it was shining green in the dark, it is also used in jewelry.


However, after that, the radioactivity contained in radium turns out to be harmful, and it will not be used for jewelry and food.


An example that the "color" that was used as a harmless at first glance was actually harmful enough to cause death is not limited to radium.


Besides green, white and orange pigments have also been used in a long history and have caused people to die.


The lethal "white" history dates back to the 4th century BC and the era of ancient Greece. At that time, "lead" was used as a material for white pigment.


A very beautiful white was made from lead, but lead is destroyed blood, soft tissue, mineralized tissue when it is directly absorbed by the human body. Also, it inhibits the action of calcium and causes various symptoms from learning disabilities to high blood pressure.


However, despite this danger, white made from lead has been used for centuries. Until the 19th century, white pigments made from lead were the only practical choice in oil painting and tempela painting.


Painters need to crush the lead in the state of lumps first, in order to make white paint, the dust generated at this time was very highly toxic.


Therefore, painters who frequently use white are "paintersColic(Senzu) "in modern timesLead poisoningIn many cases, it caused paralysis, depression, cough, dilation of the retina, loss of vision, etc.


However, the density, opacity, warm tones, etc. of white by leadVermeerIt attracted many Impressionist painters and others, and in 1970 it continued to be used until it was forbidden by law.


On the other hand, there is a lethal green other than radium. It appeared in the 18th centuryScale GreenWhenParis greenis. These two were synthesized artificial pigments, and they were reputed to be brighter than green pigments using natural materials.


Therefore, the two green gains popularity in a blink of an eye, it will be used also as a decoration of cloth, wallpaper, soap, paint, cake.


Although these green are composed of acidic arsenic arsenite, ...


Human somatic cells are damaged if exposed to arsenic. A high level of arsenic may also cause cancer and heart disease.


As a result, in the 18th century cloth manufacturing factory employees were poisoned ... ...


People who dressed in green dress absorbed arsenic from the skin and broke the body.


It is said that Napoleon was dead as a result of arsenic poisoning because he slept in a green wallpaper room.


The pigment continued to be used until it was disclosed how the two green were made in 1822.


And after about a century since the ban on use for everyday goods, it is now used as pesticide and insecticide.


The color that leads the third person to death is "Orange"


Until the Second World War, the method of processing pottery using glaze with uranium oxide added was commonly used. Uranium oxide contained radioactivity, but it produced beautiful reds and oranges.


The US government confiscated uranium used in industry to manufacture bombs used in World War II ... ...


After the war,American Atomic Energy CommissionDue to relaxation of regulations in 1959, depleted uranium was used in glass factories, ceramic factories, etc.


High activity is detected in dishes such as "Fiesta ware" made by a company called Homer Laughlin in the United States, and tableware made in the 10 years after World War II is a dangerous level to use There is a possibility.


However, although the United States Environmental Protection Agency warns against using food on these pottery, it is said that the danger level is low for keeping it on the shelf.