砷酸镝

砷酸镝是镝的砷酸盐，化学式为DyAsO₄。它有着很好的热稳定性，其pK_sp,c为23.83±0.06。^[1]砷酸镝具有ZrSiO₄结构。^[2]

制备

砷酸镝可由砷酸钠（Na₃AsO₄）和氯化镝（DyCl₃）在溶液中反应制得：^[3]

Na₃AsO₄ + DyCl₃ → 3 NaCl + DyAsO₄↓

^ Firsching, F. Henry. Solubility products of the trivalent rare-earth arsenates. Journal of Chemical and Engineering Data, 1992. 37 (4): 497-499. DOI:10.1021/je00008a028
^ V. E. Lashin, N. A. Khritokhin, O. V. Andreev. Structure maps of ABX4 inorganic compounds. Russian Journal of Inorganic Chemistry. 2012-12-01, 57 (12): 1584–1587 [2018-04-02]. ISSN 0036-0236. doi:10.1134/s0036023612120133. （原始内容存档于2018-06-05）（英语）.
^ Gabisoniya, Ts. D.; Nanobashvili, E. M.. Synthesis of rare earth metal arsenates（俄文）. Soobshcheniya Akademii Nauk Gruzinskoi SSR (1980), 97(2), 345-8. ISSN:0002-3167