通过对铝酸钠和硅铝酸钠溶液的红外光谱、粘度、丁达尔效应、聚沉实验测定和分析 ,得出结论 :ak=1.5 2时 ,ρ(Al2 O3 ) =10 0、15 0、2 0 0g/L含硅铝酸钠溶液中存在大体积的铝酸根和硅铝酸根阴离子群。在ak=1.5 2时 ,ρ(Al2 O3 ) =10 0g/L、ρ(SiO2 ) =3g/L ,ρ(Al2 O3 ) =15 0g/L、ρ(SiO2 ) =5g/L ,ρ(Al2 O3 ) =2 0 0g/L、ρ(SiO2 ) =11g/L的硅铝酸钠溶液中有纳米级的胶性基元 ,属于无机高分子溶液 The results of infrared spectroscopy, viscosity, Tyndall effect and coagulation experiments of sodium aluminate and sodium aluminosilicate show that when ak = 1.52, the ratio of ρ (Al 2 O 3) = 10 0,15 0, A large volume of aluminate and aluminosilicate anion groups exist in the 200 g / L sodium aluminosilicate solution. Ρ (Al 2 O 3) = 10 0 g / L, ρ (SiO 2) = 3 g / L, ρ (Al 2 O 3) = 15 0 g / L, ρ (SiO 2) = 5 g / L, O3) = 200g / L, ρ (SiO2) = 11g / L of sodium aluminosilicate solution has nano-scale adhesive elements belonging to inorganic polymer solution