| 摘要 |
The present invention relates to a rare-earth trifluoride with new morphological characteristics. …<??>It also relates to the process for obtaining the said fluoride, which is characterised in that an aqueous solution of a rare-earth salt is reacted with a solution of ammonium fluoride, the precipitate formed is separated off and is subjected to a heat treatment. …<??>The rare-earth fluoride of the invention has a fine and monodisperse particle size distribution. |
