TNT explosive is a kind of high explosive, which was invented by J. Willbrandt. It is white or purple-red yellow needle-like crystal, odorless, hygroscopic and insoluble in water, and can be used for underwater blasting. Because of its great power, it is often used as a secondary primary explosive. TNT is moderately toxic and can invade through the skin, respiratory tract and digestive tract, and its main hazard is chronic poisoning. After the explosion, there is a negative oxygen balance, which produces toxic gas.
The harmfulness of TNT explosive;
1, TNT explosion instant high temperature flame, can ignite the surrounding combustible materials and lead to fire. The air shock wave formed by the high-temperature and high-pressure gas generated by TNT explosion can cause damage to the surrounding area. In severe cases, it can destroy the whole building and equipment, as well as adjacent buildings, and even buildings far from the explosion point will be damaged, causing casualties.
2. When 2.TNT exploded, flying debris scattered everywhere, causing casualties and building damage. When the charge is large, the flying debris has a high initial velocity, which is very harmful to people and buildings near the explosion point. Some flying debris can be thrown far away, and it can also cause casualties and damage to people and buildings far away from the explosion point.
3. Among 3.TNT explosion hazards, air shock wave has the largest impact range, followed by flying debris. But when it is less than a certain distance, flying debris may be the main hazard, and the damage to people under different shock wave overpressure can be predicted.
Refer to the above? Baidu encyclopedia -TNT