Halogens reactions with Nitric oxide

As the equilibrium concentration of N2O2 decreases rapidly with increase in temperature the decrease in rate is explained. However alternative mechanisms have also been suggested. ° l Nitric oxide reacts with the halogens to give XNO (p. 441). Some other facile reactions are listed below ... 

Nitric oxide reacts with the halogens to give XNO (p. 441). Some other facile reactions are listed below ... 

Oxidizers may not themselves be combustible, but they may provide reaction pathways to accelerate the oxidation of other combustible materials. Combustible solids and liquids should be segregated from oxidizers. Certain oxidizers undergo dangerous reactions with specific noncombustible materials. Some oxidizers, such as calcium hypochlorite, decompose upon heating or contamination and self-react with violent heat output. Oxidizers include nitrates, nitric acid, nitrites, inorganic peroxides, chlorates, chlorites, dichromates, hypochlorites, perchlorates, permanganates, persulfates and the halogens. 

Of the reactions of nitric oxide with the halogens, the one with chlorine has been most extensively studied. Apparently, this reaction was first reported by Gay Lussac shortly before the Battle of Waterloo. Although almost all the early work (prior to 1938) was interpreted in terms of a termolecular reaction to form nitrosyl chloride... 

The work by Ashmore and co-workers on the nitric oxide-chlorine system has already been mentioned in the context of reactions of nitric oxide with molecular halogens. It was first suggested in 1953 by Ashmore and Chanmugam10 that the second-order molecular mechanism for the thermal decomposition of nitrosyl chloride might be accompanied by a radical mechanism at higher temperatures, which they envisioned as... 

Besides the photochemical dissociation, ozone decays in oxidation-reduction reactions with different species. The stratospheric 03 reacts rapidly with nitric oxide and products of photodissociation of halogenated hydrocarbons (Figure 9.5). 

SAFETY PROFILE Poison by intravenous route. Lanthanum and other lanthanoids can cause delayed blood clotting leading to hemorrhages. Has caused liver injury" in experimental animals. The dust is a dangerous fire hazard when exposed to flame can react vigorously with oxidizing materials. Violent reaction with nitric acid, phosphoms (above 400°C), air, halogens. Moderately explosive in the form of dust when exposed to flame or by chemical reaction. Incompatible with H2O, C, N, B, Se, Si, S. See also RARE EARTHS and POWDERED METALS. 

Very dangerous fire hazard by spontaneous chemical reaction. Moderately explosive when exposed to flame. Explosive reaction with dichlorine oxide, silver nitrate, concentrated nitric acid, nitrogen trichloride, oxygen. Reacts with mercury(II) nitrate to form an explosive product. Ignition or violent reaction with air, boron trichloride, Br2, CI2, aqueous halogen solutions, iodine, metal nitrates, NO, NCI3, NO3, N2O,... 

Reactions of halogen compounds with nitric oxide and carbon monoxide... 

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