Europium(II) sulfate is the inorganic compound with the formula EuSO4. Two polymorphs are known, α and the more stable β. Both are colorless. The β polymorph is isostructural with barium sulfate, hence it is insoluble in water.
Preparation
The salt is generated by addition of soluble europium(II) salts to dilute sulfuric acid.[1]
It can also be prepared by the reduction of europium(III) sulfate with hydrogen at 480-500 °C.[2]
References
- ^ Cooley, Robert A.; Yost, Don M. (1946). “Europium(II) Salts”. Inorganic Syntheses. Vol. 2. pp. 69–73. doi:10.1002/9780470132333.ch19.
- ^ Andreev, O. V.; Denisenko, Yu. G.; Sal’nikova, E. I.; Khritokhin, N. A.; Zyryanova, K. S. (2016-03-01). “Specifics of reactions of cerium sulfate and europium sulfate with hydrogen”. Russian Journal of Inorganic Chemistry. 61 (3): 296–301. doi:10.1134/S0036023616030025. ISSN 1531-8613.
Further reading
- Denisenko, Yuriy G.; Sedykh, Alexander E.; Oreshonkov, Aleksandr S.; Molokeev, Maxim S.; Azarapin, Nikita O.; Sal’nikova, Elena I.; Chimitova, Olga D.; Andreev, Oleg V.; Razumkova, Illaria A.; Müller-Buschbaum, Klaus (2022). “Europium (II) Sulfate EuSO4: Synthesis Methods, Crystal and Electronic Structure, Luminescence Properties”. European Journal of Inorganic Chemistry. 2022 (12) e202200043. doi:10.1002/ejic.202200043. ISSN 1099-0682.