Bromides, solubility

Addition of silver nitrate to a solution of a bromide in nitric acid produces a cream-coloured precipitate of silver bromide, soluble in ammonia (but not so readily as silver chloride). The reaction may be used quantitatively, as for a chloride. 

Bromide Soluble in many Insoluble in most organic solvents... 

The initial study on the MeO-TEMPO / Mg(N03)2 / NBS triple catalyst system in the oxidation of 1 indicated the necessity of all three components the TEMPO based catalyst, the nitrate source (MNT) and the bromine source (NBS). A large number of metal nitrates and nitrites were screened initially and the highest activity and aldehyde selectivity under comparable reaction conditions were recorded using Mg(N03)2 as the nitrate component. A number of organic and inorganic bromides soluble in HOAc were also screened and high reaction rates were found when NBS was used as the bromide source. The effect of the concentration of the individual components of the new triple catalyst system on the reaction rate, on the conversion of 1 and on the selectivity to 2 over 60 min reaction time is shown in Figure 1. 

Lead acetate White precipitate of lead bromide soluble in boiling water... 

METHYL IODIDE, Methylene Chloride and Methylene Bromide. Solubility of Each in Water. 

Figure 5 A graphical correlation of calcium bromide solubility in the organic phase versus its activity in the aqueous phase at different temperatures (0.5 M TOA +. 0.5 M 2-ethylhexanoic acid.

Elliott and Bradbury (1962) disagreed with some of the deductions made by Krimm (1962) from spectra published by their laboratory. For instance, the enhanced intensity at 1520 cm in the spectrum of water-soluble silk, to which he referred and attributed to a random coil form, could be seen in their spectra only when the water-soluble silk had been altered by treatment which produces the j8-form (Ambrose et ai, 1951). In the spectrum of lithium bromide soluble silk (where there was no ) -band... 

Silver-bromide (solubility product still coarsens rather rapidly at slightly... 

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