Bromine explosion

Bromine. Explosive interaction in liquid state.4 Dinitrogen Tetroxide. Interaction of the two liquids is rather violent.5 Mercury and Oxygen. A mixture of the dry carbonyl and oxygen will explode on vigorous shaking with mercury.6 Oxygen. Mixtures may explode.3... 

Autocatalytic release from sea-salt on ice, Bromine explosion mechanism... 

The halogen release mechanism is autocatalytic and has become known as the Bromine explosion . The Br2 produced in reaction (2.74) is rapidly photolysed, producing bromine atoms that can be oxidised to BrO by O3 (reaction (2.76))... 

Figure 21 A schematic representation of the so-called Bromine explosion mechanism where effectively one BrO molecule is converted to two by oxidation of bromide from a suitable aerosol surface " ...

BrO] show a pulse in the first two hours after dawn ascribed to the photolysis of inorganic bromine compounds produced either by the bromine explosion mechanism s or the photolysis of mixed bromo/ iodo-organohalogens S built up overnight. Using measured concentrations of BrO, 10 and HO2, the data in Table 7 show the ozone depletion cycle (Cycle type I) involving the BrO and lO cross-reaction is the most important with an O3 depletion rate of 0.3 ppbv h ... 

Triethylborane is a pyrophoric substance, igniting spontaneonsly on exposure to air, chlorine, or bromine. Explosion may result when mixed with oxygen. Contact with ozone, peroxides and other oxidants can cause explosion. Its concentrated solutions can be pyrophoric. Flash point of 1 M solution in hexane is —23°C (—9°F), while that in tetrahydrofuran is —17°C (1°F) (Aldrich 1996). It decomposes explosively when mixed with water. 

Mountain (Spitsbergen Island, Norway), and Greenland Summit in April 2001 (Toyota et al. 2011). As shown in the figure, the O3 depletion does not appear in RUN 1 in which the release of Br is not considered, the episodic O3 depletions are reproduced well by RUN 4 in which Tc is set at —15 °C. From this model investigation, as for the cause for the sporadic bromine explosion, meteorological conditions is suggested to influence the contact time of O3 with sea salt on snow cover by transport and turbulent diffusion. As for the bromine release, the first year fresh snow is thought to be important and it is sensitive to the critical temperature mentioned above. 

Wennberg, P. Atmospheric chemistry bromine explosion. Nature 397, 299-301 (1999)... 

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