{{Chembox
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| Section2 = {{Chembox Properties
| Sm=1 | Cl=3 | O=12
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| Appearance = 白色固体
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| Solubility = 可溶于水、乙醇(六水)从溶液中析出的水合物可用六氧化二氯对其脱水,得到无水物。无水高氯酸钐是六方晶系的晶体,空间群P63/m,晶胞参数a=9.259 Å,c=5.746 Å,Z=2。它和硫氰酸铵、1-丁基-3-甲基咪唑鎓硫氰酸盐([BMIM]SCN)在无水乙醇中反应,可以得到离子液体[BMIM]4[Sm(NCS)7(H2O)]。
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