In 1918, Lewis et al. synthesized for the first time a blister, so it was named Lewiste.
Lewy's agent, a trivalent organic arsenic compound, is an erosive agent along with mustard gas and was called "dew of death" in the 1920s. But the actual application is not widespread, as long as there is a reason;
1. It is difficult to cause high field concentrations.
2. The gas mask can completely prevent it from entering the respiratory tract.
3. The vapor state is easy to identify.
4. There are special anti-toxic agents. Lewy's agent is a halogenated aliphatic adral adral compound whose damage performance is essentially the same as that of mustard gas. Poisoning can be caused by a variety of pathways. Lewys is characterized by strong irritation, obvious vascular damage, almost no incubation period, short and violent course of disease.
But Louisian agent also has many disadvantages, easy hydrolysis, easy oxygen reaction, easy to detect and so on. At that time, some countries blindly produced a large number of high-cost Louisian agents, which brought huge economic losses to the country.
During World War II, the rapidly poisoning Officiant was called "Yellow 2" by the Japanese army.
Japan was defeated in 1945. However, at this time, The Louis agent was not finished, he was still doing a blessing and poisoning mankind.
In May 1950, the construction site of the First Normal School in Qiqihar dug up the poison left by the Japanese army, resulting in 1 death and 8 injuries.
On August 26, 1958, 39 people from the Xing'an Chemical Materials Factory in Taiyuan City dug up The Louis agent was found, resulting in a Louis agent poisoning incident.
Then in 2004, at the Dunhua Lotus Bubble Forest Farm, two children were swimming in the river and encountered poisoning left by the Japanese army.
Although more than 70 years have passed since the Second World War, the chemical weapons left behind by the Japanese army are still causing disaster and suffering to the people. It is hoped that China and Japan can reach an agreement to solve the chemical weapons left by the Japanese army in China as soon as possible and reshape a safe and beautiful land.