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R-salt
R-salt (TNX, systematic name hexahydro-1,3,5-trinitroso-1,3,5-triazine) is an explosive organic compound that has been used in terrorist attacks. It is a high explosive that is less sensitive than other compounds of similar availability. It has a similar structure to RDX but with nitrosamine groups replacing the nitroamine groups of RDX. It is also found as a decomposition product of RDX in the environment, such as after RDX detonation. This may be a potential environmental issue as a study concluded that TNX is toxic to earthworm ''Eisenia fetida''. R-salt is synthesized by nitrosation of hexamine Hexamethylenetetramine (HMTA), also known as 1,3,5,7-tetraazaadamantane, is a heterocyclic organic compound with diverse applications. It has the chemical formula (CH2)6N4 and is a white crystalline compound that is highly soluble in water and p .... References {{explosive-stub Explosive chemicals Nitrosamines Triazines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Explosive
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may either be composed solely of one ingredient or be a mixture containing at least two substances. The potential energy stored in an explosive material may, for example, be: * chemical energy, such as nitroglycerin or Dust explosion, grain dust * pressure, pressurized gas compressor, gas, such as a gas cylinder, aerosol can, or boiling liquid expanding vapor explosion * nuclear weapon, nuclear energy, such as in the fissile isotopes uranium-235 and plutonium-239 Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexamine
Hexamethylenetetramine (HMTA), also known as 1,3,5,7-tetraazaadamantane, is a heterocyclic organic compound with diverse applications. It has the chemical formula (CH2)6N4 and is a white crystalline compound that is highly soluble in water and polar organic solvents. It is useful in the synthesis of other organic compounds, including plastics, pharmaceuticals, and rubber additives. The compound is also used medically for certain conditions. It sublimes in vacuum at 280°C. It has a tetrahedral cage-like structure similar to adamantane. The four vertices are occupied by nitrogen atoms, which are linked by methylene groups. Although the molecular shape defines a cage, no void space is available at the interior. Synthesis, structure, reactivity Hexamethylenetetramine was discovered by Aleksandr Butlerov in 1859. In this article, Butlerov discovered formaldehyde, which he called "dioxymethylen" (methylene dioxide) age 247because his empirical formula for it was incorrect (C4H4O4) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explosive Chemicals
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may either be composed solely of one ingredient or be a mixture containing at least two substances. The potential energy stored in an explosive material may, for example, be: * chemical energy, such as nitroglycerin or Dust explosion, grain dust * pressure, pressurized gas compressor, gas, such as a gas cylinder, aerosol can, or boiling liquid expanding vapor explosion * nuclear weapon, nuclear energy, such as in the fissile isotopes uranium-235 and plutonium-239 Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systematic Name
A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature. A semisystematic name or semitrivial name is a name that has at least one systematic part and at least one trivial name, trivial part, such as a chemical common name, vernacular name. Creating systematic names can be as simple as assigning a prefix or a number to each object (in which case they are a type of numbering scheme), or as complex as encoding the complete structure of the object in the name. Many systems combine some information about the named object with an extra sequence number to make it into a unique identifier. Systematic names often co-exist with earlier common names assigned before the creation of any systematic naming system. For example, many common chemicals are still referred to by their common or trivial names, even by chemists. In chemistry In ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Compound
Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon. For example, carbon-containing compounds such as alkanes (e.g. methane ) and its derivatives are universally considered organic, but many others are sometimes considered inorganic, such as certain compounds of carbon with nitrogen and oxygen (e.g. cyanide ion , hydrogen cyanide , chloroformic acid , carbon dioxide , and carbonate ion ). Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The study of the properties, reactions, and syntheses of organic compounds comprise the discipline known as organic chemistry. For historical reasons, a few classes of carbon-containing compounds (e.g., carbonate salts and cyanide salts), along with a few other exceptions (e.g., carbon dioxide, and even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic Terrorism
Islamic terrorism (also known as Islamist terrorism, radical Islamic terrorism, or jihadist terrorism) refers to terrorist acts carried out by fundamentalist militant Islamists and Islamic extremists. Since at least the 1990s, Islamist terrorist incidents have occurred around the world and targeted both Muslims and non-Muslims. Most attacks have been concentrated in Muslim-majority countries, with studies finding 80–90% of terrorist victims to be Muslim. The annual number of fatalities from terrorist attacks grew sharply from 2011 to 2014, when it reached a peak of 33,438, before declining to 13,826 in 2019. From 1979 to April 2024, five Islamic extremist groups—the Taliban, Islamic State, Boko Haram, Al Shabaab, and al-Qaeda—were responsible for more than 80% of all victims of Islamist terrorist attacks. In some of the worst-affected Muslim-majority regions, these terrorists have been met by armed, independent resistance groups. Islamist terrorism has also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensitivity (explosives)
In explosives engineering, sensitivity refers to the degree to which an explosive can be initiated by impact (mechanics), impact, heat, or friction. Current in-use standard methods of mechanical (impact and friction) sensitivity determination differ by the sample preparation (constant mass or volume is usually used; pile or pressed pellet), sample arrangement (confined/unconfined sample etc), instrument type, go/not go criteria, and the statistical analysis of results. Sensitivity, chemical stability, stability and brisance are three of the most significant properties of explosives that affect their use and application. All explosive compounds have a certain amount of energy required to initiate, analogous to the minimum ignition energy of fuel-air mixtures. If an explosive is too sensitive, it may go off accidentally. A safer explosive is less sensitive and will not explode if accidentally dropped or mishandled. However, such explosives are more difficult to initiate intentionall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrosamine
Nitrosamines (or more formally ''N''-nitrosamines) are organic compounds produced by industrial processes. The chemical structure is , where R is usually an alkyl group. Nitrosamines have a nitroso group () that are "probable human carcinogens", bonded to a deprotonated amine. Most nitrosamines are carcinogenic in animals. A 2006 systematic review supports a "positive association between nitrite and nitrosamine intake and gastric cancer, between meat and processed meat intake and gastric cancer and oesophageal cancer, and between preserved fish, vegetable and smoked food intake and gastric cancer, but is not conclusive". Chemistry The organic chemistry of nitrosamines is well developed with regard to their syntheses, their structures, and their reactions. They usually are produced by the reaction of nitrous acid () and secondary amines, although other nitrosyl sources (e.g. , , Alkyl nitrite, RONO) have the same effect: : The nitrous acid usually arises from protonation of a nit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitroamine
In organic and inorganic chemistry, nitroamines or nitramides are chemical compounds with the general chemical structure . They consist of a nitro group () bonded to the nitrogen of an amine. The R groups can be any group, typically hydrogen (e.g., methylnitroamine ) and organyl (e.g., diethylnitroamine ). An example of inorganic nitroamine is chloronitroamine, . The parent inorganic compound, where both R substituents are hydrogen, is nitramide Nitramide or nitroamine is a chemical compound with the molecular formula . Substitution reaction, Substituted derivatives are termed nitramides or nitroamines as well. Organyl derivatives of nitramide, and , are widely used as explosives: exam ... or nitroamine, . ''N''-Nitroaniline rearranges in the presence of acid to give 2-nitroaniline. References Further reading * * Functional groups {{Orgchem-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eisenia Fetida
''Eisenia fetida'', known under various common names such as manure worm, redworm, brandling worm, panfish worm, trout worm, tiger worm, red wiggler worm, etc., is a species of earthworm adapted to Decomposition, decaying organic material. These worms thrive in rotting vegetation, compost, and manure. They are epigean, rarely found in soil. In this trait, they resemble ''Lumbricus rubellus''. The red wiggler is reddish-brown in color, has small rings around its body, and has a yellowish tail. Groups of bristles (called setae) on each segment of the worm move in and out to grip nearby surfaces as it stretches and contracts its muscles to push itself forward or backward. ''E. fetida'' worms are native to Europe, but have been introduced (both intentionally and unintentionally) to every other continent except Antarctica. ''E. fetida'' also possesses a unique natural defense system in its coelomic fluid; cells called coelomocytes secrete a protein called lysenin, which is a por ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrosation And Nitrosylation
Nitrosation and nitrosylation are two names for the process of converting organic compounds or metal complexes into nitroso derivatives, i.e., compounds containing the functionality. The synonymy arises because the R-NO functionality can be interpreted two different ways, depending on the physico-chemical environment: * Nitrosylation interprets the process as adding a nitrosyl radical NO•. Nitrosylation commonly occurs in the context of a metal (e.g. iron) or a thiol, leading to nitrosyl iron (e.g., in nitrosylated heme = nitrosylheme) or ''S''-nitrosothiols (RSNOs). * Nitrosation interprets the process as adding a nitrosonium ion . Nitrosation commonly occurs with amines (–), leading to a nitrosamine. There are multiple chemical mechanisms by which this can be achieved, including enzymes and chemical synthesis. In biochemistry The biological functions of nitric oxide include S-nitrosylation, the conjugation of NO to cysteine thiols in proteins, which is an imp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrosamines
Nitrosamines (or more formally ''N''-nitrosamines) are organic compounds produced by industrial processes. The chemical structure is , where R is usually an alkyl group. Nitrosamines have a nitroso group () that are "probable human carcinogens", bonded to a deprotonated amine. Most nitrosamines are carcinogenic in animals. A 2006 systematic review supports a "positive association between nitrite and nitrosamine intake and gastric cancer, between meat and processed meat intake and gastric cancer and oesophageal cancer, and between preserved fish, vegetable and smoked food intake and gastric cancer, but is not conclusive". Chemistry The organic chemistry of nitrosamines is well developed with regard to their syntheses, their structures, and their reactions. They usually are produced by the reaction of nitrous acid () and secondary amines, although other nitrosyl sources (e.g. , , Alkyl nitrite, RONO) have the same effect: : The nitrous acid usually arises from protonation of a nit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
