pentaerythritol การใช้

• Three officials said that chemical was PETN, pentaerythritol tetranitrate.
• It is less sensitive than pentaerythritol tetranitrate ( PETN ).
• PETN, or pentaerythritol tetranitrate, is a compound related to nitroglycerine, Persson said.
• It uses an explosive core of pentaerythritol tetranitrate ( PETN ) inside its plastic coating.
• Pentaerythritol was first synthesized in 1891 by German chemist Bernhard Tollens and his student P . Wigand.
• When esterified with pentaerythritol, it is used as a compound of adhesives and oil-based varnishes.
• Formaldehyde is also a precursor to polyfunctional alcohols such as pentaerythritol, which is used to make paints and explosives.
• Monomeric polyols such as glycerin, pentaerythritol, ethylene glycol and sucrose often serve as the starting point for polymeric polyols.
• Use as an intumescent is achieved when combined with starch-based materials such as pentaerythritol and melamine as expanding agents.
• Derivatives of pentaerythritol are components of alkyd resins, varnishes, polyvinyl chloride stabilizers, tall oil esters, and olefin antioxidants.
• And detonating cord normally contains pentaerythritol tetranitrate ( PETN ), which Williams believed had been found on a knife carried by McVeigh.
• Halogen-free pentaerythritol esters are also environmentally friendly alternative to conventional electrical ignition in case of major electrical failure and transformer rupture.
• The explosive, whose full name is pentaerythritol tetranitrate, is usually mixed with other explosives and materials like latex to give it plasticity.
• They may be homopolymers of acrylic acid, crosslinked with an allyl ether pentaerythritol, allyl ether of sucrose or allyl ether of propylene.
• Production is by the reaction of pentaerythritol with concentrated nitric acid to form a precipitate which can be recrystallized from acetone to give processable crystals.
• Neutron radiation degrades PETN, producing carbon dioxide and some pentaerythritol dinitrate and degradation mechanism is the loss of nitrogen dioxide; this reaction is autocatalytic.
• In the aqueous medium a two-stage, non-autocatalytic hydrolysis takes place, initially generating neutral fragments ( pentaerythritol dipropionate and the diol ).
• A suicide terrorist driving a van packed with 2, 000 pounds of highly explosive pentaerythritol tetranitrate ( PETN ) crashed into the embassy lobby detonating the payload.
• Five kilos of Penthrit ( pentaerythritol tetranitrate ) were found in the car as well as false passports and other incriminating documents including sketch plans of various locations.
• FBI scientists determined that the shoe bomb was composed of triacetone triperoxide _ TATP _ and pentaerythritol tetranitrate _ PETN _ both long-time favorites of terrorist groups.