bromine

Beryllium, bismuth, and bromine must be considered as well.

少量的还包括还有铍 、 铋 、 溴.

A chemical compound containing two bromine atoms bound to another element or radical.

叠氮原子团和一种元素或一种基结合形成的一种化合物.

Synthesis of 2-bromothiophene using thiophene and bromine and glacial acetic acid as solvent was studied.

以冰乙酸为溶剂,通过噻吩和溴反应制备了 2- 溴噻吩,并探讨了诸因素对产率的影响.

The yield was higher using bromine The yield was higher using bromine than chlorine.

用溴比用氯时产出率高.

A new method for determining the bromine content in brominated polystyrene was studied.

提出了测定溴化聚苯乙烯中溴含量的方法.

Objective To observe the efficacy of bromine-containing disinfectant in on-the-spot disinfection of swimming pool water.

目的观察含溴消毒剂对游泳池水现场消毒效果.

Test standard samples of bromine number 0.

以容量法测定溴值在0.

The number of cationic bromine and chlorine compounds is restricted.

溴、氯阳离子化合物的数量受局限.

Main product has bromine of chloride, industry, magnesium chloride to wait.

主要产品有氯化钾 、 工业溴 、 氯化镁等.

Bromobenzene, magnesium , antimony trichloride and bromine act as raw materials, dibromotriphenylantimony flame retardant is synthesized.

以溴苯、镁粉 、 三氯化锑、溴素为原料, 合成了二溴三苯基锑阻燃剂.

Magnesium mine, salt mine , Bromine mine, Piezoelectric Crystal.

镁矿, 盐矿,溴矿, 压电水晶, 铸石用玄武岩.

The preparation and catalytic properties of different bromine-free catalysts were discussed.

溴蒽类催化剂的活性较低,相应的研究也较少.

Bromine can restrain central nervous system and avoid insomnia.

溴:抑制中枢神经,有镇静作用,能防治失眠.

Derivatives of bromine are much more active than the corresponding one of chlorine.

溴的衍生物的活性要比相应的氯的衍生物大得多.

The existing bromine in acetic acid could aggravate corrosion on metal hole.

醋酸中含溴会加剧金属孔蚀.