Potassium aluminium borate
3D model (JSmol)
  • InChI=1/2Al.B2O7.2K/c;;3-1(4,5)9-2(6,7)8;;/q2*+3;-8;2*+1
  • [Al+3].[Al+3].[O-][B-]([O-])([O-])O[B-]([O-])([O-])[O-].[K+].[K+]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium aluminium borate (K2Al2B2O7) is an ionic compound composed of potassium ions, aluminium ions, and borate ions. Its crystal form exhibits nonlinear optical properties. The ultraviolet beam at 266 nm can be obtained by fourth harmonic generation (FGH) of 1064 nm Nd:YAG laser radiation through a nonlinear crystal K2Al2B2O7 (KABO).[1]


  1. ^ Zhang, Chengqian; Wang, Jiyang; Cheng, Xiufeng; Hu, Xiaobo; Jiang, Huaidong; Liu, Yaogang; Chen, Chuangtian (July 2003). "Growth and properties of K2Al2B2O7 crystal". Optical Materials. 23 (1–2): 357–362. Bibcode:2003OptMa..23..357Z. doi:10.1016/S0925-3467(02)00318-X.