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以硼酸和氧化钙为原料，采用水热法在２３４～３００℃合成无色透明正交相一水六硼酸二钙．该化合物阴离子基团是非平面出（Ｂ_３Ｏ_８）~（７－）基团，是含（Ｂ_３_８）~（７－）基团中的已知７种含水六硼酸二钙中唯一有非线性光学效应的化合物．其晶体的粉末倍频效应超过ＫＤＰ，反射光谱显示该化合物在所测定波长（８００～２４０ｎｍ）范围内基本不发生吸收．该化合物晶体结构有利于产生非线性光学效应。
Boric acid and calcium oxide as raw materials, the use of hydrothermal synthesis 234 ~ 300 ℃ colorless and transparent orthogonal phase water hexaboric dicalcium phosphate. The anionic group of the compound is a non-planar (B_3O_8) ~ (7-) group, which is the only non-linear optical effect among the seven kinds of aqueous calcium hexabohydrates containing (B_3_8) ~ (7-) Compound. The frequency doubling effect of the crystals exceeds KDP, and the reflection spectrum shows that the compound does not substantially absorb in the measured wavelength (800 to 240 nm). The crystal structure of the compound favors the generation of nonlinear optical effects.