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KNO3-NaNO2系熔盐溶液的激光Raman光谱研究
SHAPE OF RAMAN SPECTRA OF MOLTEN KNO3-NaNO2 SOLUTION
【摘要】 <正> 在以前的工作中,我们曾用Monte Carlo法对若干熔盐浴液的结构作计算机模拟,以研究其局部结构(local structure);与此相配合,我们选择一批熔盐溶液作激光Raman光谱研究。利用Raman光谱作为熔盐溶液中离子微环境的“探针”,本文报道我们对KNO3-NaNO2系的研究结果。Ах-тырский曾对此系的Raman光谱数据作过简短报道,但不足以探讨该系熔盐的局部结构。为此,我们测量了473—623K温度范围内的、各种配比的
【Abstract】 The Raman spectra of molten KNO3-NaNO2 solution at 473--623 K have beenmeasured and the regularity of the shape of spectra investigated. The symmetrical stretching frequency peak v1 of NO3- or NO2- becomes broaden as the temperature increases or the concentra-tion of NO3- or NO2- ions in KNO3NaNO3 mixture decreases. The results have been discussedbased on the view-point of a theoretical model obtained in previous work.
【关键词】 硝酸钾(KNO3);
亚硝酸钠;
熔盐;
频率;
【Key words】 potassium nitrate; sodium nitrite; molten salt; frequency;
【Key words】 potassium nitrate; sodium nitrite; molten salt; frequency;
【基金】 国家自然科学基金
- 【文献出处】 金属学报 ,Acta Metallrugica Sinica , 编辑部邮箱 ,1988年01期
- 【被引频次】4
- 【下载频次】67