Bromides water

CH3)3CBr + 2H2O rerr Butyl bromide Water... 

Absorption Refrigeration Systems Two main absorption systems are used in industrial application lithium bromide-water and ammonia-water. Lithium bromide-water systems are hmited to evaporation temperatures above freezing because water is used as the refrigerant, while the refrigerant in an ammonia-water system is ammonia and consequently it can be applied for the lower-temperature requirements. 

The two most common industrial absorption-type refrigeration systems are (1) aqua ammonia and (2) lithium bromide-water, with ammonia and water respectively the refrigerant for each system. 

The stability of the gel phase and the transitions of coagel and gel phases to liquid crystal in the dioctadecyldimethylammonium bromide-water system were determined by... 

Ethylmagnesium bromide, Water, 0847 Formic acid, 4436 f Hydrogen cyanide, 0380... 

Hydrogen bromide, water Hydrogen chloride, water Hydrogen iodide, water Nitric acid, water 46.85 20.30 57.00 68.00 126.0 108.6 127.0 120.5... 

But with respect to hydrogen bromide, water is a base ... 

Ethylmagnesium bromide, Water, 0843 Formic acid, 0417 f Hydrogen cyanide, 0379... 

The subsequent reaction of the peroxo complexes with bromide gives oxidized bromine species (see Scheme 2). HOBr, Br2, and Br3 rapidly equilibrate, and Br3 is the predominant spectrophotometrically observed intermediate (Xmax 267 nm e = 36,100 M-1 cm-1) in the absence of an organic substrate. Tribromide is stabilized with respect to HOBr, Br2 and decomposition products by high bromide and acid concentrations (34). HOBr is reduced by excess hydrogen peroxide to yield bromide, water, and dioxygen, of which dioxygen can be measured. In the presence of TMB, the oxidized species is rapidly consumed in the bro-mination of TMB to BrTMB. Quantitation of BrTMB demonstrates that bromination is stoichiometric with respect to the concentration of H202 added. Thus TMB is a rapid, quantitative trap for the oxidized bromine species (33). 

Figure 2. Ternary phase diagram of the system didodecyldimethylammonium bromide / water / hexene at 25°C. The nomenclature is cub cubic phase Lamj and Lam2 lamellar phases l.c. liquid crystalline, inverted hexagonal phase L2 microemulsion phase, with curvature toward water. (Courtesy of K. Fontell).

ULTRASONIC RELAXATION STUDY OF FAST EXCHANGE PROCESSES IN MIXED MICELLE SYSTEMS OF ALCOHOL-DECYLTRIMETHYLAMMONIUM BROMIDE-WATER... 

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