沉淀用盐酸溶解后,用原子吸收分光光度法(贫燃火焰)测定金属锌、锌粉和锌饼中铟、铋和铅。
After the precipitation was dissolved in hydrochloric acid, indium, bismuth and lead in zinc, zinc powder and zinc carrot were determined by atomic absorption spectrometer.
介绍了电热还原法生产电炉锌粉的原理、工艺技术条件、主要设备等,对其经济效益进行了分析。
This paper describes principle, technical conditions and main equipment of the production of industrial zinc power for electrothermal reduction method, the economic benefit is analyzed.
本文就氧杂蒽醇的制备方法进行了多方面的探讨,选出了较好的合成路线即锌粉加氢氧化钠还原法。
Much research work is done on the synthesis method of xanthgdrol, from which the better synthesis method is zinc powder in addition to sodium hydroxide.
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