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溶解UO_3于氢溴酸则得溴化铀酰溶液,蒸发浓缩,过量的氢溴酸用于减低溴化物的溶解度并补充蒸发时的失散酸量,失酸会导致硷式溴化铀酰的形成。溶液浓缩至稠厚、棕红色近于不透明的糖浆状,冷却则得结晶,继续在熔结玻璃漏斗上真空抽气过滤并使多余水份和氢溴酸蒸发,则得黄色UO_2Br_(?).3H_2O结晶,这三水化物暴露于空气则强烈潮解,可盛于玻塞容器中放在干燥器中保存。它的饱和溶液是6.51±0.06M,密度为3.36±001g/ml.从它的
Dissolving UO_3 in hydrobromic acid gives a solution of uranyl bromide, concentrating by evaporation, excessing the hydrobromic acid to reduce the solubility of the bromide and supplementing the amount of lost acid at the time of evaporation, and acid loss will result in the formation of basic uranylbromide . The solution was concentrated to a thick, brownish red near opaque syrup, cooled to crystallize, and continued to vacuum-filter on a frit glass funnel and allow excess water and hydrobromic acid to evaporate to give yellow UO 2 Br ?. 3H_2O crystallization, the three hydrate is strongly deliquescence when exposed to the air, Sheng Sheng in the glass stopper container on the dryer to save. Its saturated solution is 6.51 ± 0.06 M with a density of 3.36 ± 001 g / ml. From it