What is the difference between low and high explosive?
What is the difference between low and high explosive?
Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be “high explosives” and materials that deflagrate are said to be “low explosives”. In contrast, some materials are merely combustible or flammable if they burn without exploding.
What are low explosives?
Low Explosives – explosives that are characterized by deflagration or a low rate of reaction and the development of low pressure. Black powder, smokeless powder, safety fuse, and squibs/igniters are classified as low explosives.
What is the difference between low explosives and high explosives quizlet?
What is the difference between low explosives and high explosives? Low explosives are explosives with a velocity of detonation less than 1,000 meters per second. High explosives are an explosive with a velocity of detonation greater than 1,000 meters per second.
What are the characteristics of a low explosive?
Low Explosives: Low explosives deflagrate rather than detonate. Their reaction velocities are 2000 to less than 3000 feet per second. Black powder is a good example. These materials normally have little water resistance, are highly flammable, sensitive to a No.
Are high explosives safer than low explosives?
A high explosive bursts and explodes very fast. High explosives produce more pressure than low explosives but low explosives are more safe to use.
What are the 2 classes of high explosives What is the difference between them?
Learn about this topic in these articles: Detonating explosives, such as TNT and dynamite, are characterized by extremely rapid decomposition and development of high pressure, whereas deflagrating explosives, such as black and smokeless powders, involve merely fast burning and produce relatively low pressures.
Is black powder a high explosive?
The black powder used in fireworks is one example of a low explosive. Black powder burns very quickly, but to get it to go bang, we have to contain it. Fireworks hold black powder inside a cardboard or paper tube so that once the powder has burned, the gases burst the container noisily.
What is the difference between high and low explosives?
High explosives do not need to be contained to make their bang. Explosives are materials that burn or decompose quickly, creating large quantities of gases, which take up much more space than the original materials. Chemical explosives are traditionally divided into two categories: low explosives and high explosives.
What is high order and low order explosives?
High-Order Explosives: These explosives cause destructive shock waves, such as dynamite. Low-Order Explosives: These explosives lack the over-pressurization wave which high-order explosives, such as gunpowder, create. Mechanical: A mechanical explosion requires a physical reaction which is neither chemical nor nuclear.
What is the speed of detonation of a high explosive?
The speed detonation of a high explosive can be 3000 – 9000 metres per second. The high explosive in detonating cords detonates at the rate of 6000 metres per second. What is a liquid explosive, and how is it different from normal explosives?
What are the different types of explosions?
There are three main types of explosions: chemical, mechanical and nuclear. Each type of explosion can be equally devastating and serious, causing unprecedented harm to the surrounding people, atmosphere and infrastructure. Therefore, understanding different types of explosions and how they occur is important.
