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RAMAN SPECTRA OF SODIUM ALUMINATE SOLUTIONS WITH HIGH-CAUSTIC RATIO AND HIGH CONCENTRATION

LIU Miaoxiu CAO Yilin CHEN Nianyi Shanghai Institute of Metallurgy , Academia Sinica , Shanghai , ChinaZHUANG Zhicheng Shanghai Jiaotong University , Shanghai , China Professor , Shanghai Institute of Metallurgy , Academia Sinica , Shanghai 200050 , China

金属学报(英文版)

The constitution of high-caustic ratio and highly concentrated sodium aluminate solutions has been investigated by Raman spectra method.By comparison with the Raman spectra of crystalline solids of Ca_3[Al(OH)_6]_2 and Ba_2[Al_2(OH)_(10)],it can be concluded that AI(OH)_6~(3-)ion and perhaps its polymers may be formed in these solutions.

关键词: high caustic ratio , null , null

高苛性比铝酸钠溶液的Raman光谱研究

柳妙修 , 曹益林 , 陈念贻 , 庄志诚

金属学报

用 Raman光谱方法研究高苛性比铝酸钠溶液的阴离子组成.高苛性比的铝酸钠溶液的Raman光谱在470cm~(-1)等处有特征峰.和固体Ca_3[Al(0H)_6]_2及Ba_2[Al_2-(OH)_(10)]的 Raman谱相对照,可看出高苛性比的浓铝酸钠溶液可能含有Al(OH))_6~(3-)及其聚合离子。

关键词: 高苛性比 , sodium aluminate solution , Raman spectra

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