Forensic Chemistry Lecture 14 Pdf Crime Scene Forensic Science Specific high explosives are described in detail including their chemical formulas, uses, and historical background. the effects of explosions like pressure, fragmentation, heat and shock are also outlined. download as a pptx, pdf or view online for free. Forensic chemistry and toxicology in explosives free download as powerpoint presentation (.ppt .pptx), pdf file (.pdf), text file (.txt) or view presentation slides online.
Forensic Chemistry And Toxicology Explosives Pdf Explosion Shell • it is an explosive mixture of potassium nitrate or sodium nitrate, charcoal, and sulfur used especially in fireworks and as a propellant in antique firearms • 2kno3 3c s = 3co2 k2s n2 • whereas: s is an oxidizing agent, c is a reducing agent, kno 3 is an oxidizing agent. Two pressure cooker bombs exploded during the boston marathon at 2:49 pm killing 3 people and injuring an estimated 264 others. This chapter covers how explosives are classified, types of homemade and military explosives, methods for collecting physical evidence at explosion scenes, and laboratory procedures for identifying explosive residues. Note: explosives are also defined as reactive substances containing great amount of potential energy that, if released suddenly, can produce an explosion, usually accompanied by the production of light, sound, heat and pressure. the quantity of an explosive material is measured through its explosive charge.
Forensic Chemistry And Toxicology Pdf Explosion Fracture This chapter covers how explosives are classified, types of homemade and military explosives, methods for collecting physical evidence at explosion scenes, and laboratory procedures for identifying explosive residues. Note: explosives are also defined as reactive substances containing great amount of potential energy that, if released suddenly, can produce an explosion, usually accompanied by the production of light, sound, heat and pressure. the quantity of an explosive material is measured through its explosive charge. It highlights the evolution of explosives from gunpowder to modern compounds like tnt and analyzes various forensic techniques used for detection, such as ion mobility spectrometry and raman spectroscopy. Explosives forensic chem free download as powerpoint presentation (.ppt .pptx), pdf file (.pdf), text file (.txt) or view presentation slides online. Separately analysis of explosives 1 microscopic examination for unconsumed explosive (low explosives) 2 debris rinsed w acetone (or water) to remove explosives 3 acetone extract concentrated and analyzed analysis of explosives acetone extract color spot tests griess, diphenylamine, alcoholic koh (table 11 3) tlc hplc gc ms analysis of. • the most widely used explosives in the low explosive group are black powder and smokeless powder. • black powder is a mixture of potassium or sodium nitrate, charcoal, and sulfur. • smokeless powder consists of nitrated cotton (nitrocellulose) or nitroglycerin and nitrocellulose.
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