abstract |
The present invention relates to Zirconium oxalate sol.This colloidal sol is to be the colloidal sol of dispersate with the oxalic acid zirconium compounds, and wherein, the mol ratio of oxalic acid/zirconium is 1.2~3, and the particle diameter D50 of dispersate is 10~100nm.This colloidal sol is to make by add oxalic acid in the dispersion liquid of zirconium hydroxide, wherein divides and carries out the interpolation of oxalic acid 2 times. |