中文摘要：

对碱金属系列硫酸盐与无水硫酸钙在低温水热条件下的络合性进行研究，利用XRD对其合成产物进行了分析，对其合成影响因素进行了讨论。结果表明，Ⅰ簇元素从上到下随原子序数增加，与硫酸钙形成复盐的难度逐渐降低，但规律性不明显。其中硫酸钾与硫酸钙的络合能力最强，受温度影响最小，硫酸锂与硫酸钙不能形成复盐。

英文摘要：

The complexation capacities in low temperature hydrothermal conditions of alkali metals series sulfate and anhydrous calcium sulfate have been investigated. The final products have been analyzed by XRD, and several influence factors for synthesis have been discussed. The results show that with the atomic number of Ⅰ cluster elements increasing from the top down, they are easier to form complex salts with calcium sulfate, however, the rules is not obvious. Among these alkali metals sulfate, the potassium sulfate has the strongest complexation capacity with calcium sulfate and it is the most insensitive to temperature. Lithium sulfate can not form complex salts with calcium sulfate.