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

摘要

The constitution of high-caustic ratio and highly concentrated sodium aluminate solutions hasbeen investigated by Raman spectra method.By comparison with the Raman spectra ofcrystalline solids of Ca₃[Al（OH）₆]₂ and Ba₂[Al₂（OH）₁₀],it can be concluded thatAI（OH）₆3-ion and perhaps its polymers may be formed in these solutions.