通过低温熔盐法合成了一种新型五硼酸盐RbB5O7（OH）2·H20，单晶X射线衍射结果证明该化合物属单斜晶系，P2／c空间群，α=0．7640（2）nm，b=0．9019......

【正】1 Introduction Sodium borates as important raw materials are widely used in the field of glass industry,ceramic in......