Explosion oxygen

Contact with water causes a violent reaction or explosion, oxygen being evolved. 

Finds employment as an high explosive (oxygen balance —40%). 

Explosive Oxygen balance °/ /o Content of toxic gaseous products (1. per kg of explosive) ... 

Figure 3 Abundances after explosive oxygen burning at Mr > 1.67 Mq for the 6 Mq core.

The exact site of origin for 40 Ar has been somewhat unclear. A cosmoradiogenic portion of 40 Ar has appeared as the daughter of radioactive 4°K produced by explosive oxygen burning in supernovae. A larger portion appears to exist primarily owing to the intense... 

Applications.—It is clear that a supply of free oxygen will be of value to men working under such conditions as preclude a sufficient natural supply of this gas examples of such conditions are met during rescue work in mines when the air has been vitiated by fire or by an explosion. Oxygen is also administered to persons suffering from great exhaustion due to illness, suffocation, or excessive exertion. 

Oxygen carriers in slurry explosives 548 see water-gel explosives Oxygen difluoride 5 1,574 Oxygcn./Fluorinc sceFlox 570 ( .2 Oxypropylenc)diol. poly(PPG) 604... 

As the shock wave passes through the outer layers of the star, it heats and compresses them. This causes further nuclear reactions. For example, when the shock passes through the silicon and sulfur-rich zones of the star, it heats them and causes explosive silicon burning. Oxygen-rich layers experience explosive oxygen burning, neon-rich layers experience explosive neon burning, etc. The ejecta from a massive star then enrich the interstellar medium with new elements. 

Principles of composition of commercial explosives Oxygen balance... 

Deng Jun, et al. 2007. Experimental Study on Explosive Oxygen Concentration of Coal Mine Combustive Gases. Safety in Coal Mines, 6. 

Flammability and Explosibility Oxygen itself is nonflammable, but at concentrations greater than 25% supports and vigorously accelerates the combustion of flammable materials. Some materials (including metals) that are noncombustible in air will bum in the presence of oxygen. 

The alkanesulfonic acids themselves are not suitable starting materials for electrochemical fluorination because the yields of perfluoroalkanesulfonic acids obtained from the free acids are much lower compared to the alkanesulfonyl fluorides and chlorides. Another major disadvantage of this approach is the formation of water, which may result in the formation of explosive oxygen difluoride (OF2). 

PFCAs can also be synthesized by electrochemical fluorination of the corresponding alkanoic acid however, the yield of this reaction is only 10-20%. Slightly higher yields can be obtained by fluorination of the corresponding anhydrides. For example, acetic acid and acetic acid anhydride form perfluoroacetyl fluoride in a 17% and 32% yield, respectively. A major disadvantage of this approach is the formation of water that may form explosive oxygen difluoride. Simple alkanoic acids were, therefore, never useful starting materials for the industrial synthesis of PFCA fluorides. 

The current efficiency in the chlorate process is conunonly 93-95 % [4]. The deviation from 100 % is caused by side reactions ot the electrodes and in the bulk as well as by CI2 escaping with the cell gas. Oxygen is the major by-product, and oxygen in the cell gas affects not only the electricity consumptirm but is also considered a safety risk as explosive oxygen-hydrogen gas mixtures may form. 

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