- Preparation method of bismuth subgallate
-
The invention provides a preparation method of bismuth subgallate, comprising the following steps: Step (1), adding bismuth trioxide into concentrated nitric acid to dissolve bismuth trioxide, and then adding deionized water to obtain a bismuth nitrate solution; Step (2) adding deionized water into gallic acid to dissolve gallic acid so as to obtain a gallic acid aqueous solution; Step (3), adding the gallic acid aqueous solution into the bismuth nitrate solution at the molar ratio of gallic acid in the gallic acid aqueous solution to bismuth nitrate in the bismuth nitrate solution being 1.1:1-1.2:1, so as to obtain a yellow precipitate; and Step (4) filtering the yellow precipitate to obtain a filter cake, washing the filter cake with deionized water and finally drying so as to obtain bismuth subgallate. The preparation method of bismuth subgallate is simple to operate and is cost-saving.
- -
-
Paragraph 0031
(2017/05/27)
-
