What is Semtex explosive made of?
It is a high performance plastic explosive containing a mixture of RDX and PETN bonded by plasticized SBR rubber [25].
What are the components of Semtex?
The general binding components in all Semtex material are reported as consisting of polymeric substances (polyi- sobutylene, polystyrene, polyacronitrile, and/or polyethy- lene) and plasticizers (dioctylphthalate, dibutylphthalate, and/or dioctyl-sebacate) [1].
What is the explosive C4 made of?
C4 was used during the Vietnam War as part of demolition blocks; today, it is commonly used in both military and civilian settings for demolition and flares. C4 is composed of RDX (91%), dioctyl sebacate (5.3%), polyisobutylene (2.1%), and mineral/motor oil (1.6%) [1].
What is the composition of explosive?
Chemical composition A chemical explosive may consist of either a chemically pure compound, such as nitroglycerin, or a mixture of a fuel and an oxidizer, such as black powder or grain dust and air.
Why is it called Semtex?
Semtex was invented in the late 1950s by Stanislav Brebera, a chemist at VCHZ Synthesia, former Czechoslovakia. The explosive is named after Semtín, a suburb of Pardubice in the Czech Republic where the mixture was first manufactured starting in 1964.
Is Semtex a military explosive?
Semtex is a general-purpose plastic explosive containing RDX and PETN. It is used in commercial blasting, demolition, and in certain military applications….Composition.
| Compound | RDX |
|---|---|
| Semtex 1A | 4.6% |
| Semtex H | 41.2% |
| Semtex 2P | 22.9% |
What is the strongest plastic explosive?
PETN is a powerful explosive material with a relative effectiveness factor of 1.66. When mixed with a plasticizer, PETN forms a plastic explosive….Pentaerythritol tetranitrate.
| Names | |
|---|---|
| Density | 1.77 g/cm3 at 20 °C |
| Melting point | 141.3 °C (286.3 °F; 414.4 K) |
| Boiling point | 180 °C (356 °F; 453 K) (decomposes above 150 °C (302 °F)) |
| Explosive data |
What is the difference between Semtex and C4?
It is also waterproof. There are visual differences between Semtex and other plastic explosives, too: while C-4 is off-white in colour, Semtex is red or brick-orange. The new explosive was widely exported, notably to the government of North Vietnam, which received 14 tons during the Vietnam War.
What is C2 explosive?
n. A moldable doughlike explosive substance that can be detonated by fuse or electrical impulse, often used in making bombs. Also called plastique.
Do explosions need oxygen?
An explosive is a chemical material that is capable of extremely rapid combustion resulting in an explosion or detonation. Since an adequate supply of oxygen cannot be drawn from the air, a source of oxygen must be incorporated into the explosive mixture.
When was Semtex made?
Is Semtex the same as Explosia?
The plant was later renamed to become Explosia a.s., a subsidiary of Synthesia. Semtex was very similar to other plastic explosives, especially C-4, in being highly malleable; but it is usable over a greater temperature range than other plastic explosives, since it stays plastic between −40 and +60 °C. It is also waterproof.
What is Semtex 1H explosive?
Semtex 1H is a plastic explosive produced by Explosia Company, Czech Republic. The polymeric matrix was prepared by the swelling of SBR using the oil in order to increase the elasticity of the binder.
What is Semtex used for?
Samples of semtex and other plastic explosives. Semtex is a general-purpose plastic explosive containing RDX and PETN. It is used in commercial blasting, demolition, and in certain military applications.
What is the difference between Semtex and C-4 explosives?
There are visual differences between Semtex and other plastic explosives, too: while C-4 is off-white in colour, Semtex is red or brick-orange. The new explosive was widely exported, notably to the government of North Vietnam, which received 14 tons during the Vietnam War.