Synthesis
Take samarium oxide 10g dissolved in 500mL of 50% acetic acid aqueous solution, heating to make samarium oxide dissolved, if there is insoluble material by filtration of the clear liquid, and then this aqueous solution is placed in 75 on the water bath heating to evaporate most of the water, to be precipitated by the crystals can be filtered out of the collection of the crystals placed in the crystallization of the petri dish, put into the vacuum desiccator equipped with sodium hydroxide and magnesium perchlorate, vacuum drying that is samarium tetrahydrate acetic acid.
