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A contact explosive is a chemical substance that explodes violently when it is exposed to a relatively small amount of energy (e.g. friction, pressure, sound, light). Though different contact explosives have varying amounts of energy sensitivity, they are all much more sensitive relative to other kinds of explosives.
An example of an endothermic reaction is a first aid cold pack, in which the reaction of two chemicals, or dissolving of one in another, requires calories from the surroundings, and the reaction cools the pouch and surroundings by absorbing heat from them.
A high explosive violent reaction (HEVR) includes reactions ranging from a fast deflagration of the high explosive (HE), up to and including a detonation of the high explosive. The explosive wave may be subsonic or supersonic.
The reaction mechanism appears to involve ejection of the nitrile to form an iminium that is then attacked by the Grignard rather than a direct displacement such as an S N 2 reaction. This accounts for the importance of the alpha amino group and the absence of stereoselectivity on chiral reaction sites.
Slow motion videos are great with extreme sports and hilarious effects of pranks, but this technology can also turn plain chemical reactions into beautiful art. The project Beautiful Chemistry ...
A 37-year old acid attack victim from Tabriz, Iran. An acid attack, [1] also called acid throwing, vitriol attack, or vitriolage, is a form of violent assault [2] [3] [4] involving the act of throwing acid or a similarly corrosive substance onto the body of another "with the intention to disfigure, maim, torture, or kill". [5]
In simple terms, the 'Barking Dog' reaction is a combustion process, in which a fuel (carbon disulfide, CS 2) reacts with an oxidizing agent (nitrous oxide, N 2 O), producing heat and elemental sulfur. The flame front in the reaction is a zone of very hot, luminous gas, produced by the reactants decomposing. 8 N 2 O + 4 CS 2 → S 8 + 4 CO 2 ...
Dreams really do come true at the Pop-Tarts Bowl. The Pop-Tarts Bowl and GE Appliances announced on Monday, Dec. 16 that the trophy for the 2024 bowl game will feature a full-operational toaster.